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The function of the hygroscopic awn of Themeda triandra 1
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: K.M. Adams --- Department of Grassland Science, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South AfricaThe hygroscopic awn of species such as Themeda triandra is widely believed to be a device ensuring the early burial of its seed. This belief has been extensively tested and no tendency for such self‐burial has been found. It has... -
A family of stochastic models for droughts
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W. Zucchini --- Department of Statistical Sciences, Republic of South Africa P.T. Adamson --- , United Kingdom L. McNeill --- Department of Statistical Sciences, Republic of South AfricaThere is no single quantitative definition of a drought; what constitutes a drought depends both on water needs and on storage capabilities. In this paper a family of models is proposed which is sufficiently flexible to cover a range of... -
Estimation of thrips (Fulmekiola serrata Kobus) density in sugarcane using leaf-level hyperspectral data
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: ElfatihM Abdel-Rahman --- School of Environmental Sciences, South Africa Mike Way --- , South Africa Fethi Ahmed --- School of Environmental Sciences, South Africa Riyad Ismail --- School of Environmental Sciences, South Africa Elhadi Adam --- School of Environmental Sciences, South AfricaThe aim of this study was to investigate the potential use of leaf-level hyperspectral data to predict the density of sugarcane thrips Fulmekiola serrata (Kobus). A hand-held spectroradiometer was used to make the spectral measurements on spindle leaves of 4-... -
Monitoring of seabirds in the Benguela upwelling system: can seabirds be used as indicators and predictors of change in the marine environment?
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: N. J. Adams P. J. Seddon Y. M. Van HeezikHistorical and contemporary data on Benguela seabirds assumed to be responsive to changes in food availability are reviewed as potential indicators and predictors of change in the ecosystem. Cyclic variations in the annual yields of seabird products evident at decadal... -
Trends in pelagic fish populations of the Saldanha Bay region, southern Benguela upwelling system, 1980–1990: a predator's perspective
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: R. C. Laugksch N. J. AdamsChanges in monthly and annual prey species composition of African penguins Spheniscus demersus are described from 1 454 stomach samples collected from two breeding islands in the Saldanha Bay region of the southern Benguela upwelling system between 1980 and 1990... -
A preliminary investigation on how meteorological changes may affect beach-seine catches of Lougo vulgaris in the Thracian Sea (Eastern Mediterranean)
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: E. Lefkadltou P. Sánchez A. Tsangridis A. AdamidouDaily catches of Loligo vulgaris and the fishing effort of commercial beach-seiners operating along the coasts of the Thracian Sea were recorded between October 1994 and May 1995. Taking into account the spatial distribution of the ports, the squid fishing... -
Foraging effort and prey choice in Cape gannets
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: N. J. Adams N. T. W. KlagesIn order to test the hypothesis that sardine Sardinops sagax are the preferred prey of Cape gannets Morus capensis, the link between foraging effort and prey choice was evaluated by simultaneously monitoring the activity and the diet of adult birds... -
THE USE OF FIRE AS A TOOL IN THE MANAGEMENT OF THE BRUSH RANGES OF CALIFORNIA / THE USE OF FIRE AS A TOOL IN THE MANAGEMENT OF THE BRUSH RANGES OF CALIFORNIA
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: F. Adams --- , P.A. Ewing --- , M.R. Huberty --- , H.L. Schantz --- , -
Influence of sward defoliation and soil disturbance on seedling emergence and survival in the Southern Tall Grassveld
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: K.M. Adams --- Department of Zoology, Republic of South AfricaSeedling emergence, survival and species composition were recorded on vegetation subjected to seven practicably feasible soil and defoliation treatments. Soil disturbance, with defoliation removal, produced the greatest number of emergents; these also had the best survivorship compared to other treatments... -
Reforming communal rangeland policy in southern Africa: challenges, dilemmas and opportunities
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Martin Adams --- , UKIn the savanna rangelands of southern Africa, the debate about land reform tends to be about the redistribution of formerly freehold ranches and fencing-off the rangeland commons into ranches for better-off African farmers. The position of those who favour privatisation... -
Towards reduced herbicide use in forest vegetation management
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: K.M. Little I. Willoughby R.G. Wagner P. Adams H. Frochot J. Gava S. Gous R.A. Lautenschlager G. örlander K.V. Sankaran R.P. WeiMechanical, manual, thermal, biological and chemical methods of managing forest vegetation have, to a large extent, been developed independently. The effectiveness and relatively low cost of chemical herbicides, however, have led to systems of vegetation management that rely on their... -
In vitro shoot multiplication and rooting from seedling explants of Pterocarpus angolensis in Zambia
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Exildah Chisha-Kasumu AdamH. Price Steve WoodwardPterocarpus angolensis is a savanna tree species growing mostly in the southern part of Africa. Exploitation for its medicinal and commercial uses has led to diminishing of wild populations. Developing reliable in vitro protocols for propagation would enable mass production... -
Suicidal Ideation and Associated Factors Among School-Going Adolescents in Harare, Zimbabwe
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Emmanuel Rudatsikira --- Loma Linda University, Seter Siziya --- University of Zambia, Adamson S. Muula --- University of Malawi,This study determined the prevalence and associated factors of suicidal ideation among school-going adolescents in Harare, Zimbabwe. Data on 1970 respondents were obtained from a cross sectional study of the Global School-based health survey. Respondents were selected using a two-stage... -
CANONICAL FORMS FOR PARTICLE LAGRANGIANS OF THE LINEAR SECOND-ORDER EQUATION
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A.A. Adam --- Department of Computational & Applied Mathematics, South Africa F.M. Mahomed --- Department of Computational & Applied Mathematics, South Africa A.H. Kara --- Department of Computational & Applied Mathematics, South AfricaA particle Lagrangian of a linear scalar second-order ordinary differential equation can admit maximally one of 1,2,3 or 5 Noether point symmetries. Moreover, canonical forms of particle Lagrangians of the linear equation are presented according to the number (and algebra)... -
An analysis of students’ slang terms for academic activities in a Nigerian university: A semiotic approach
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: GraceE Adamo --- Department of English and Literary Studies, NigeriaUsing a semiotic approach, this article analyses Nigerian university students’ slang terms for academic activities. It inquires into how students in an ESL context are able to exchange meanings with one another using their own form of English. Using a... -
Vaccine preparedness: lessons from Lyantonde, Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Paul Ritvo Dennis Willms Robert Meisner Laura Brown Adam Goldman Nelson SewankamboTo explore how to better educate rural Africans about preventive HIV/AIDS vaccine trials, 15 semi-structured, open-ended interviews were conducted with villagers in Lyantonde, Rakai District, Uganda. This study reports on the findings by focusing on the attitudes, knowledge and questions... -
‘Before we were sleeping, now we are awake’: Preliminary evaluation of the Stepping Stones sexual health programme in The Gambia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Katie Paine --- , The Gambia Graham Hart --- MRC Social and Public Health Sciences Unit, Scotland Michelle Jawo --- , The Gambia Saihou Ceesay --- , Mariama Jallow --- , Linda Morison --- , Gijs Walraven --- , The Gambia Keith McAdam --- , The Gambia Matthew Shaw --- , The GambiaCommunity-based behavioural interventions aimed at reducing risky sexual behaviour have yet to be shown to be effective in the developing world. Stepping Stones is a participatory STI/HIV prevention workshop programme based on empowerment techniques, which has been adapted to an... -
Clinics and home-based care organisations: an interface between theformal and informal health sectors
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Adam Kenneth Boros --- , South AfricaThe article outlines the findings of a study designed to explore the working relationship between home-based caregivers and clinic nurses at locations in two informal settlements in Johannesburg, South Africa. By considering the views and experiences of both sponsored and... -
A method for monitoring mangrove harvesting at the Mngazana estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Anusha Rajkaran JanineB Adams DerekR du PreezThe Mngazana estuary supports the third largest area of mangroves, and probably the largest stand of Rhizophora mucronata Lamk., in South Africa. The objective of this study was to determine the extent of harvesting in the Mngazana mangrove forest, using... -
Primary habitats of the St Lucia Estuarine System, South Africa, and their responses to mouth management
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Ricky Taylor JanineB Adams Sylvi HaldorsenFour primary habitats have been identified in the St Lucia estuarine system, each having a suite of characteristic vegetation types. These can be described as follows: (1) open water; (2) intertidal shoreline; (3) 'dry' shoreline and island (i.e. those habitats... -
Water quality status and phytoplankton composition in Soetendalvlei, Voëlvlei and Waskraalsvlei, three shallow wetlands on the Agulhas Plain, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Gordon --- Botany Department, South Africa JB Adams --- Botany Department, South Africa F Garcia-Rodriguez --- , UruguayThree wetlands on the Agulhas Plain, for which no limnological information was available, were investigated in order to provide baseline data on their present water quality and phytoplankton community structure. Physicochemical variables were assessed and phytoplankton biomass and community analyses... -
Reeds as indicators of nutrient enrichment in a small temporarily open/ closed South African estuary
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LRD Human --- Department of Botany, South Africa JB AdamsThis study investigated the use of δ15N levels in Phragmites australis reeds as an indicator of nutrient input into the small temporarily open/closed East Kleinemonde Estuary, Eastern Cape, South Africa. Nutrient (NH4 and SRP) concentrations decreased from the bank towards... -
Response of mangroves to drought and non-tidal conditions in St Lucia Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SCL Hoppe-Speer --- Botany Department, South Africa JB Adams --- Botany Department, South Africa A Rajkaran --- Botany Department, South AfricaThe effect of a prolonged closed-mouth state on the condition of mangrove habitats was studied in May 2010 at St Lucia Estuary, KwaZulu-Natal. The mouth had been closed to the sea since 2002 as a result of artificial mouth closure... -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: B.G. Donnelly --- , R.A. Black --- , Lynne Grant-Dalton --- Dept. of Zoology, M. J.F. Jarvis --- Dept. of Zoology, L.K. Hodgson --- , Rhodesia C.J. Hodgson --- , Rhodesia J.M. Winterbottom --- Percy FitzPatrick Institute of African Ornithology, R.K. Brooke --- , Rhodesia A.N. Adams --- , Rhodesia G. Adams --- , Rhodesia L.K. Hodgson --- , Rhodesia C.J. Hodgson --- , Rhodesia MilesB. Markus --- Dept. of Zoology, P. Le S. Milstein --- , England H.K. Morgan --- , -
REVIEW
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Nigel Adams -
Disturbance of incubating African Black Oystercatchers: is heating of exposed eggs a problem?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: N.J. Adams --- , G. I.H. Kerley --- Terrestrial Ecology Research Unit, Department of Zoology, South Africa J.J. Watson --- Terrestrial Ecology Research Unit, Department of Zoology, South AfricaAdams, N.J., Kerley, G.I.H. & Watson, J.J. 1999. Disturbance of incubating African Black Oystercatchers: is heating of exposed eggs a problem? Ostrich 70(3&4): 225–228. -
Avian fossils from the Early Miocene Moghra Formation of Egypt
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: N Adam Smith --- National Evolutionary Synthesis Center, USAAvian remains from the Early Miocene (∼17 Ma) Moghra Formation of Egypt include new records of ‘waterbirds’ (storks, herons, pelicans and allies) and a ratite. Only a single avian fossil has been previously reported from Wadi Moghra and, thus, additional... -
LETTERS TO THE EDITOR
Item type: Journal Article • Journal: South African Forestry Journal • Authors: Ena Adam --- , ENGLAND LeonH. Liegel -
Foraging of a coastal seabird: flight patterns and movements of breeding Cape gannets Morus capensis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NJ Adams RA NavarroCape gannets Morus capensis are predatory seabirds in the coastal waters of southern Africa where they feed on commercially important fish species. Using a combination of intensive monitoring at nest sites, tracking of radio-tagged birds and diet sampling, we determined... -
The nearshore advection of a toxigenic Pseudo-nitzschia bloom and subsequent domoic acid contamination of intertidal bivalves
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NG Adams A MacFadyen BM Hickey VL TrainerAlong the coast of Washington State, USA, periods of downwelling-favourable winds increase in frequency in late summer and may advect domoic acid (DA)-producing Pseudo-nitzschia to the coast where they toxify coastal razor clams Siliqua patula. During the late summer and... -
Brevetoxin — an elusive toxin in New Zealand waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P McNabb L Rhodes J Adamson P HollandLiquid chromatography mass spectrometry (LCMS) was used to test 34 microalgal isolates, all known or reported to be brevetoxin producers. Only Karenia brevis strains, imported from the USA, produced brevetoxin. In contrast, all isolates cultured in New Zealand proved non-toxic... -
Trace metal effects on the production of biotoxins by microalgae
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Rhodes A Selwood P McNabb L Briggs J Adamson R van Ginkel O LaczkaMass production of bioactive compounds was enhanced by the addition of particular trace metals to specific microalgae. An increase in domoic acid isomer-C production by Pseudo-nitzschia australis was achieved by adding copper (Cu) or Zinc (0.1–0.2μmol l−1) to standard growth... -
A review of the ecology and management of temporarily open/closed estuaries in South Africa, with particular emphasis on river flow and mouth state as primary drivers of these systems
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AK Whitfield --- , South Africa GC Bate --- Department of Botany, South Africa JB Adams --- Department of Botany, South Africa PD Cowley --- , South Africa PW Froneman --- Department of Zoology and Entomology, South Africa PT Gama --- Department of Botany, South Africa NA Strydom --- Department of Zoology, South Africa S Taljaard --- , South Africa AK Theron --- , South Africa JK Turpie --- , South Africa L van Niekerk --- , South Africa TH Wooldridge --- Department of Zoology, South AfricaResearch in South African temporarily open/closed estuaries that includes studies on the hydrodynamics, sediment dynamics, macronutrients, microalgae, macrophytes, zoobenthos, hyperbenthos, zooplankton, ichthyoplankton, fishes and birds is used as a basis to review the ecology and management of this estuary type... -
Plant traits and spread of the invasive salt marsh grass, Spartina alterniflora Loisel., in the Great Brak Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JB Adams --- Department of Botany, South Africa A Grobler --- Department of Botany, South Africa C Rowe --- Department of Botany, South Africa T Riddin --- Department of Botany, South Africa TG Bornman --- , South Africa DR Ayres --- Evolution and Ecology, USASpartina alterniflora Loisel., widely recognised as an aggressive invader of estuaries and salt marshes around the world, was discovered growing in the temporarily open/closed Great Brak Estuary on the southern Cape coast of South Africa in 2004. This is the... -
Human-mediated drivers of change — impacts on coastal ecosystems and marine biota of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Mead --- Centre for Invasion Biology, South Africa C L Griffiths --- Centre for Invasion Biology, South Africa G M Branch --- Department of Biological Sciences, South Africa C D McQuaid --- Department of Zoology and Entomology, South Africa L K Blamey --- Department of Biological Sciences, South Africa J J Bolton --- Department of Biological Sciences, South Africa R J Anderson --- Department of Biological Sciences, South Africa F Dufois --- Marine Research Institute, South Africa M Rouault --- Marine Research Institute, South Africa P W Froneman --- Department of Zoology and Entomology, South Africa A K Whitfield --- South African Institute for Aquatic Biodiversity, South Africa L R Harris --- Department of Zoology, South Africa R Nel --- Department of Zoology, South Africa D Pillay --- Department of Biological Sciences, South Africa J B Adams --- Department of Botany, South AfricaCoastal ecosystems are highly vulnerable to human-mediated drivers of global change because they are located at the land–ocean interface and often host centres of urbanisation and development. The South African coastline comprises several distinct coastal ecoregions that support a wide... -
Mangrove litter production and organic carbon pools in the Mngazana Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Anusha Rajkaran JanineB AdamsWood harvesting is reducing the density of adult mangrove trees in the Mngazana Estuary. This is expected to decrease the amount of litter produced as well as the availability of organic carbon to the estuary and the nearshore environment. Pools... -
A multidisciplinary study of a small, temporarily open/closed South African estuary, with particular emphasis on the influence of mouth state on the ecology of the system
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AK Whitfield JB Adams GC Bate K Bezuidenhout TG Bornman PD Cowley PW Froneman PT Gama NC James B Mackenzie T Riddin GC Snow NA Strydom S Taljaard AI Terörde AK Theron JK Turpie L van Niekerk PD Vorwerk TH WooldridgeIn 2005/2006 a multidisciplinary research programme that included studies on the hydrodynamics, sediment dynamics, macronutrients, microalgae, macrophytes, zoobenthos, hyperbenthos, zooplankton, ichthyoplankton, fish and birds of the temporarily open/closed East Kleinemonde Estuary was conducted. Particular attention was given to the responses... -
Redemption to a kwaito beat: Gavin Hood's Tsotsi
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Ian-Malcolm Rijsdijk Adam HauptThe authors provide an analysis of the film Tsotsi, with a specific focus on the musical score comprising both pre-recorded popular music (mainly the kwaito of Zola) and more conventional orchestral and choral components. We argue that the film is... -
Historic and recent (2006) state of mangroves in small estuaries from Mlalazi to Mtamvuna in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: A Rajkaran --- Botany Department, South Africa J Adams --- Botany Department, South Africa R Taylor --- , South AfricaThe new forest type classification considers mangroves to be the rarest and most threatened of forest types in South Africa. The aim of this study was to determine the change in distribution and the current population and community structure of... -
Thick Concepts, Non-Cognitivism, and Wittgenstein’s Rule-Following Considerations
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Adam M. Croom --- Department of Philosophy University of Pennsylvania,Non-cognitivists claim that thick concepts can be disentangled into distinct descriptive and evaluative components and that since thick concepts have descriptive shape they can be mastered independently of evaluation. In Non-Cognitivism and Rule-Following, John McDowell uses Wittgenstein’s rule-following considerations to... -
Variability in foraging behaviour and prey of the Common Fiscal Shrike, Lanius collaris, along an altitudi
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Shernice Soobramoney ColleenT. Downs Nigel.J AdamsAspects of the foraging behaviour along an altitudinal gradient of four subpopulations (Durban, Merrivale, Estcourt and Harrismith) of colour-banded Common Fiscals (Lanius collaris) were analysed in summer and winter in South Africa. The shrike subpopulations showed significant differences in their... -
A brief survey of the birds in Kumbira Forest, Gabela, Angola
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: ÇaganH Sekercioglu Adam RileyIn January 2004 we conducted a rapid assessment of the avifauna of the Kumbira Forest, situated in the Gabela Important Bird Area (IBA) of the Angolan Escarpment. We recorded 112 species in the Kumbira Forest, four of them globally threatened,... -
Morphological variation in the Common Fiscal Lanius collaris along an altitudinal gradient in southern Afr
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: S Soobramoney CT Downs NJ AdamsGeographic variation among four Common Fiscal subpopulations along an altitudinal gradient in South Africa demonstrated significant variation of 13 morphological features and 38 skeletal characters. Common Fiscals were largest in cooler, less humid, more arid areas and smallest in warmer,... -
Mortality patterns among type 2 diabetes mellitus patients in Ilorin, Nigeria
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: A Chijioke --- Department of Medicine, Nigeria AN Adamu --- Department of Medicine, Nigeria AM Makusidi --- Department of Medicine, NigeriaObjective: People living with diabetes mellitus (DM) are prone to varied forms of complications which often lead to their premature death. The vulnerability has the greatest impact in type 2 DM because of larger numerical strength, insidious onset and late... -
Anaesthetic implications of acute and chronic alcohol abuse
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: C Adams --- University of the Free State, South Africa -
The value of medical student hepatitis B immunisation as part of clinical skills training in the Clinical Skills Unit of the University of the Free State
Item type: Journal Article • Journal: South African Family Practice • Authors: EAM Prinsloo --- Department of Family Medicine, G Joubert --- Department of Biostatistics, L De Bruyn --- Clinical Skills Unit, S Adam --- Department of Family Medicine Faculty of Health Sciences, J Botes --- Department of Family Medicine Faculty of Health Sciences,Background: It is compulsory for medical students of the University of the Free State to be immunised against hepatitis B before they have contact with clinical patients. Previously, the students were vaccinated on campus at the student health services. With... -
Office skills for the general practitioner
Item type: Journal Article • Journal: South African Family Practice • Authors: MF Adamjee --- Dept of Ophthalmology,Eye disorders are relatively common. Often the initial presentation is to a general practitioner. With a few basic tools for eye examination, a general practitioner would be able to conduct an adequate ophthalmic examination and appropriately refer cases requiring specialist... -
Integrating tuberculosis/HIV treatment: an evaluation of the tuberculosis outcomes of patients co-infected with tuberculosis and HIV in the Breede Valley subdistrict
Item type: Journal Article • Journal: South African Family Practice • Authors: H Conradie --- Ukwanda Centre for Rural Health, Department of Family Medicine and Primary Care, Faculty of Medical and Health Sciences, P Khati --- Ukwanda Centre for Rural Health, Faculty of Medical and Health Sciences, H Pharoah --- Ukwanda Centre for Rural Health, Faculty of Medical and Health Sciences, S Adams --- Ukwanda Centre for Rural Health, Faculty of Medical and Health Sciences,Background: The Infectious Disease Clinic of Worcester Hospital introduced an integrated tuberculosis/human immunodeficiency virus (HIV) service in July 2009 to provide comprehensive management to patients who were co-infected with tuberculosis and HIV. -
Meaning-making and resilience: case studies of a multifaceted process
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Linda C. Theron --- Optentia Research Program, Faculty of Humanities, South Africa Adam M. C. Theron --- Optentia Research Program, Faculty of Humanities, South AfricaExplanations of meaning-making generally prioritise intrapersonal processes. Although making meaning is an intrapersonal process, it is also strongly influenced by person-context interactions and cultural positioning. Nevertheless, the meaning-making literature has paid scant attention to how such interactivity and positioning shape... -
Responses of primary producers to mouth closure in the temporarily open/closed Great Brak Estuary in the warm-temperate region of South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Nunes --- Department of Botany, South Africa JB Adams --- Department of Botany, South AfricaLow river inflow conditions during 2009/2010 resulted in the mouth of the Great Brak Estuary remaining closed for almost two years. The low water level in Wolwedans Dam resulted in no annual environmental flow releases being made, causing mouth closure... -
Music and the Play of Power in the Middle East, North Africa and Central Asia
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Margarethe Adams --- Stony Brook University, -
Oribatid mites of the genus Allonothrus (Acari: Oribatida: Crotonioidea) of the Ethiopian region with the description of a new subspecies
Item type: Journal Article • Journal: African Zoology • Authors: Ziemowit Olszanowski --- Department of Animal Taxonomy and Ecology, Adam Mickiewicz University, Poland Natalia Bochniak --- Department of Animal Taxonomy and Ecology, Adam Mickiewicz University, PolandSummary data on oribatid mites of the genus Allonothrus (Trhypochthoniidae) of the Ethiopian region are presented. A new subspecies, Allonothrus schuilingi seychelli nov. subsp., is described from Seychelles. It is distinguished on the basis of the shape and length of... -
Genetic variability of South African fiscal shrikes (Lanius collaris) across an altitudinal gradient
Item type: Journal Article • Journal: African Zoology • Authors: S. Soobramoney --- School of Biological & Conservation Sciences, University of KwaZulu-Natal, South Africa G.K. Campbell --- School of Life and Environmental Sciences, University of KwaZulu-Natal, South Africa C.T. Downs --- School of Biological & Conservation Sciences, University of KwaZulu-Natal, South Africa N.J. Adams --- School of Biological & Conservation Sciences, University of KwaZulu-Natal, South AfricaAn electrophoretic allozyme study of the fiscal shrike Lanius collaris, a widely distributed sub-Saharan passerine, was undertaken to investigate altitudinal variation in genetic structure within this species. It is a sedentary bird with limited dispersal so that subpopulations may be... -
Mangrove expansion and population structure at a planted site, East London, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Sabine CL Hoppe-Speer --- Department of Botany, South Africa Janine B Adams --- Department of Botany, South Africa Anusha Rajkaran --- Department of Botany, South AfricaAvicennia marina (Forrsk.) Vierh. was planted in 1969 at Nahoon Estuary, East London, followed a few years later by the planting of Bruguiera gymnorrhiza (L.) Lam. and Rhizophora mucronata (L.) among the larger A. marina trees. This study tested the... -
Teachers Building Dwelling Thinking with Slideware
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Catherine A. Adams [B0001]Teacher-student discourse is increasingly mediated through, by and with information and communication technologies: in-class discussions have found new, textually-rich venues online; chalk and whiteboard lectures are rapidly giving way to PowerPoint presentations. Yet, what does this mean experientially for teachers?... -
Country selection strategies based on value, size and momentum
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Adam Zaremba --- Poznań University of Economics, PolandThis study provides convincing evidence that stock markets with low capitalisation, low valuation ratios and high momentum tend to outperform country markets with high capitalisation, high valuation ratios and low momentum. Based on sorting procedures and cross-sectional tests conducted across... -
Plant selection and grazing activity of the invasive snail Theba pisana in coastal Algoa Bay, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Sean van Elden --- DST–NRF Research Chair in Shallow Water Ecosystems, South Africa Nelson AF Miranda --- DST–NRF Research Chair in Shallow Water Ecosystems, South Africa Renzo Perissinotto --- DST–NRF Research Chair in Shallow Water Ecosystems, South Africa Janine B Adams --- Department of Botany, South AfricaThe land snail Theba pisana is a coastal species native to the Mediterranean but has been introduced to regions all over the world, including South Africa and Australia, where it is considered a pest. This study examines the diet of... -
Characteristics and landcover of estuarine boundaries: implications for the delineation of the South African estuarine functional zone
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DA Veldkornet --- Department of Botany, South Africa JB Adams --- Department of Botany, South Africa L van Niekerk --- Department of Botany, South AfricaThis study investigated whether the current lateral boundary for estuaries in South Africa, i.e. the estuarine functional zone (EFZ), includes all estuarine habitats. The EFZ covers 173 930 ha in 304 estuaries/outlets nationally. Field surveys and analysis of available aerial... -
Antimicrobial susceptibility patterns of gonococcal isolates in Pretoria, South Africa, over a 20-year period (1984-2004)
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Y Dangor --- Department of Microbiological Pathology, M de Jongh --- Department of Microbiological Pathology, A Adam --- Medical Practitioner, A A Hoosen --- Department of Medical Microbiology,This paper reviews the susceptibility profles of Neisseria gonorrhoeae over a 20-year period in the Pretoria region. Endourethral specimens were collected from adult men with symptoms of urethritis attending primary health care clinics and private medical practitioners. These swabs were... -
Evaluation of community-based growth monitoring in rural districts of the Eastern Cape and KwaZulu-Natal provinces of South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: M Faber [AN0001] S Schoeman --- Nutritional Intervention Research Unit, South Africa Cm Smuts --- School for Physiology, Nutrition and Consumer Science, South Africa V Adams --- Nutritional Intervention Research Unit, South Africa T Ford-Ngomane --- Health Systems Trust, South AfricaBackground: The Health Systems Trust implemented a community-based growth monitoring intervention project that fits into the Integrated Nutrition Programme focus areas and commissioned an evaluation of this project. -
Adverse social, nutrition and health conditions in rural districts of the KwaZulu-Natal and Eastern Cape provinces, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: S. Schoeman --- Nutritional Intervention Research Unit, South Africa M. Faber --- Nutritional Intervention Research Unit, South Africa V. Adams --- Currently from Scifest, South Africa C. Smuts --- School for Physiology, Nutrition and Consumer Science, Potchefstroom N. Ford-Ngomane --- Health Systems Trust, South Africa J. Laubscher --- Biostatistics Unit, South Africa M. Dhansay --- Currently from Executive Research Directorate, South AfricaObjective: This study determined the socio-demographic, nutritional and health status of children and their caregivers in two rural districts in KwaZulu-Natal (KZN) and one rural district in the Eastern Cape (EC), South Africa. -
Traditions of kinship, marriage and bridewealth in southern Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Adam Kuper --- Anthropology, United KingdomIn the pre-colonial period, and in most parts of Southern Africa throughout the nineteenth and well into the twentieth century, marriage, the family and the homestead were embedded in economic, political and religious institutions. The household was the hub of... -
Global cycle properties in graphs with large minimum clustering coefficient
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Adam Borchert --- Department of Mathematics and Statistics, Canada Skylar Nicol --- Department of Mathematics and Statistics, Canada Ortrud R. Oellermann --- Department of Mathematics and Statistics, CanadaLet ???? be a graph property. A graph G is said to be locally ???? (closed locally ????) if the subgraph induced by the open neighbourhood (closed neighbourhood, respectively) of every vertex in G has property ????. The clustering coefficient... -
A comparison of DNA barcoding markers in West African frogs
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Heidi J. Rockney --- , , USA Caleb Ofori-Boateng --- , Ghana Natsuko Porcino --- , , USA Adam D. Leaché --- , , USADNA barcoding has been proposed as a means of quick species identification using a short standardised segment of DNA. The established barcode gene for animals—the mitochondrial gene cytochrome oxidase one (CO1)—has been plagued by primer failure and low species identification... -
Do you have to let it linger? – Political membership that remains after territorial exit
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Adam Hosein --- Philosophy Department, United StatesIn this paper, I argue that one permissible solution to the problem of brain drain from less developed countries is to level a tax on the money skilled emigrant workers earn within more developed countries. Contrary to both Brock and... -
Identity and acculturation: The case for Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Byron G. Adams --- Tilburg University, the Netherlands and University of Johannesburg, South Africa Fons J. R. van de Vijver --- Tilburg University, The Netherlands, North-West University, South Africa, and University of Queensland, AustraliaDespite the multicultural nature of African societies, there is still very little knowledge about acculturation and its association with identity on this continent. Acculturation processes and outcomes are strongly associated with identity. The objective of this article is to relate... -
Identity experiences of black people in the Netherlands
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Renée Zonneveld --- Tilburg University, The Netherlands Susanne B. E. Brand --- Tilburg University and University of Groningen, The Netherlands Byron G. Adams --- Tilburg University, The Netherlands, and University of Johannesburg, South AfricaIn this study, we used the tri-dimensional model of identity and acculturation strategies to explore how black people living in the Netherlands define themselves. We used a qualitative survey design in which 14 participants (females = 8; age range 21... -
Merger imbalance and returns in international equity markets
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Adam Zaremba --- Department of Investment and Capital Markets, Poland Przemyslaw Grobelny --- Department of Investment and Capital Markets, PolandAt the global level, the mispricing theory of mergers by Shleifer and Vishny (2003) may imply that a significant number of targets acquired in a given country is a sign of market-wide undervaluation whereas intense acquisition activity indicates overvaluation. The... -
Status of mental-health services for adolescents with psychiatric morbidity in youth correctional institutions in Lagos
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Olayinka Atilola --- Department of Behavioural Medicine, Nigeria Bolanle Ola --- Department of Behavioural Medicine, Nigeria Gbonjubola Abiri --- Child and Adolescent Unit, Nigeria Modepeola Sahid-Adebambo --- Ministry of Youth and Social Development, Nigeria Olubukayo Odukoya --- Ministry of Youth and Social Development, Nigeria Abiodun Adewuya --- Department of Behavioural Medicine, Nigeria Olurotimi Coker --- Department of Behavioural Medicine, Nigeria Oluwadamilola Folarin --- Department of Behavioural Medicine, Nigeria Adedolapo Fasawe --- Mental Health Desk, NigeriaBackground: High prevalence rates of psychiatric morbidity have been documented among adolescents within youth correctional institutions in Nigeria. However, there has not been prior investigation to determine the capacity for and nature of mental health services being provided in these... -
Seasonality in the cross section of factor premia
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Adam Zaremba --- Department of Investment and Capital Markets, PolandThis study examines the seasonality effect in the cross section of factor premia representing a broad set of stock market strategies. Using cross-sectional and time-series tests, we investigated the cross-sectional seasonality of market, value, size, momentum, quality and low-risk premia... -
The dimensionality of disclosure of HIV status amongst post-partum women in Cape Town, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jo Hunter-Adams --- Health Economics Unit, Public Health and Family Medicine, South Africa Allison Zerbe --- ICAP, USA Tamsin Philips --- Centre for Infectious Diseases Epidemiology & Research, Public Health and Family Medicine, South Africa Zanele Rini --- Centre for Infectious Diseases Epidemiology & Research, Public Health and Family Medicine, South Africa Landon Myer --- Centre for Infectious Diseases Epidemiology & Research, Public Health and Family Medicine, South Africa Greg Petro --- Department of Obstetrics & Gynaecology, South Africa Elaine Abrams --- ICAP, Mailman School of Public Health and College of Physicians and Surgeons, USADisclosure of HIV status to sexual partners and others has been presented as positive health behaviour and is widely encouraged by antiretroviral treatment (ART) programmes, providers and policies. However, disclosure is also highly contextual and its positive effects are not... -
Mindfulness for adolescent chronic pain: a pilot feasibility study
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: David Adam Lovas --- IWK Health Centre, Canada Kathleen Pajer --- IWK Health Centre, Canada Jill MacLaren Chorney --- IWK Health Centre, Canada Dzung X Vo --- Department of Paediatrics, Canada Melissa Howlett --- IWK Health Centre, Canada Ashley Doyle --- IWK Health Centre, Canada Adam Huber --- IWK Health Centre, CanadaObjective: Chronic pain is common in paediatric populations and many patients do not respond to the currently available evidence-based treatments. Mindfulness-based interventions (MBIs) have a growing evidence-base in adults, but evidence is limited in youth with chronic pain. -
Key factors that drive phytoplankton biomass and community composition in the urbanised Nahoon Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: P Cotiyane --- Department of Botany, South Africa J Adams --- Department of Botany, South Africa A Rajkaran --- Department of Biodiversity and Conservation Biology, South AfricaEstuaries are under intense pressure, because of urban developments and water abstraction. Water column characteristics of the Nahoon Estuary were examined in 2014–2015 to identify factors that influenced phytoplankton dynamics. The estuary was found to be saline (∼33) and remained... -
“I will take ARVs once my body deteriorates”: an analysis of Swazi men’s perceptions and acceptability of Test and Start
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alfred K Adams --- Amsterdam Institute of Social Science Research, the Netherlands Agostino M Zamberia --- Department of Sociology and Social Work, SwazilandSwaziland has the highest HIV prevalence in the world. To mitigate the spread and devastation caused by HIV and to improve the wellbeing of people living with HIV, the country has adopted the latest available HIV prevention campaigns, including “Test... -
Endometrial cancer with bone marrow metastases: a management dilemma
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Bt Guzha --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa T Adams --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa L Rogers --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa N Mbatani --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa H-t Wu --- South African Medical Research Council (SAMRC)/University of Cape Town (UCT) Gynaecological Cancer Research Centre, South Africa N Fakie --- South African Medical Research Council (SAMRC)/University of Cape Town (UCT) Gynaecological Cancer Research Centre, South Africa J Opie --- Division of Haematology Pathology, South Africa La Denny --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South AfricaA case is presented of a 67-year-old woman referred to the authors’ institution with endometrioid endometrial cancer with a leucoerythroblastic blood film and marked thrombocytopenia. On further evaluation, it was confirmed that she had grade 3 endometrial cancer with bone... -
Assessment of potential sources of protozoan contamination between two avian feeding guilds in a conservation area
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adams A Chaskda --- AP Leventis Ornithological Research Institute, Department of Zoology, Nigeria Georgina S Mwansat --- Entomology and Parasitology Unit, Department of Zoology, Nigeria Danjuma Sani --- Entomology and Parasitology Unit, Department of Zoology, Nigeria Longtong Turshak --- Department of Science Laboratory Technology, NigeriaOccasional screening of food and water quality available to organisms in protected areas could be beneficial to their successful conservation. This is important for areas receiving regular human visitors and exhibiting activities that may be detrimental to ecosystem health. This... -
Managing human disturbance: factors influencing flight-initiation distance of birds in a West African nature reserve
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Bukola Braimoh --- AP Leventis Ornithological Research Institute, University of Jos, Nigeria Soladoye Iwajomo --- Department of Zoology, Faculty of Science, Nigeria Mark Wilson --- British Trust for Ornithology, UK Adams Chaskda --- AP Leventis Ornithological Research Institute, University of Jos, Nigeria Afan Ajang --- AP Leventis Ornithological Research Institute, University of Jos, Nigeria Will Cresswell --- AP Leventis Ornithological Research Institute, University of Jos, NigeriaEscape behaviour in response to perceived predators can be employed as a guide when designating protected areas around sensitive bird species to minimise the impact of human disturbance. A key measure of escape response is flight-initiation distance (FID), the distance... -
Overview and status of estuarine microphytobenthos ecological research in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Dalu --- Department of Ecology and Resource Management, South Africa JB Adams --- Department of Botany, South Africa JC Taylor --- South African Institute for Aquatic Biodiversity, South Africa GC Bate --- Department of Botany, South Africa M Nunes --- Department of Botany, South Africa PW Froneman --- Department of Ecology and Resource Management, South Africa RJ Wasserman --- South African Institute for Aquatic Biodiversity, South AfricaThis article presents a historical overview of estuarine microphytobenthos (MPB) research in South Africa published over the period 1950 to the present, highlighting major milestones, challenges and estuarine management problems, as well as future research needs within the South African... -
First insights on spatial and temporal distribution patterns of humpback whales in the breeding ground at Sainte Marie Channel, Madagascar
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Trudelle --- Bioacoustics Team, France J-B Charrassin --- Sorbonne Universités (UPMC, Univ. Paris 06) – CNRS-IRD-MNHN, LOCEAN-IPSL, France A Saloma --- Cétamada, Port Barachois, Madagascar S Pous --- Sorbonne Universités (UPMC, Univ. Paris 06) – CNRS-IRD-MNHN, LOCEAN-IPSL, France A Kretzschmar --- Biostatistiques et Processus Spatiaux (BioSP), France O Adam --- Bioacoustics Team, FranceThe Sainte Marie Channel on the northeast coast of Madagascar is an important breeding ground for humpback whales; the first observation of birth was documented there, yet it has never been investigated for phenology and habitat use of humpback whales... -
Conceptions of love in Ghana: An exploration among Ghanaian Christians
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Annabella Osei-Tutu --- Department of Psychology, Ghana Vivian A. Dzokoto --- Department of African American Studies, USA Katja Hanke --- Survey Design and Methodology, Germany Glenn Adams --- Department of Psychology, USA Faye Z. Belgrave --- Department of Health Psychology, USAWe explored conceptions of love from the perspective of Ghanaian Christians. Using an ethnographic approach, we interviewed 61 participants (males = 39; females = 22; age range 20 to 70) on their understanding and experiences of love in the context... -
Less pain, more gain: Volatility-adjusted residual momentum in international equity markets
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Adam Zaremba --- Department of Investment and Capital Markets, Poland Mehmet Umutlu --- Department of International Trade and Finance, Turkey Alina Maydybura --- Dubai Business School, United Arab EmiratesWe offer a new type of momentum strategy — the volatility-adjusted residual momentum (VARMOM) — which is based on average past residuals scaled with their volatility. We demonstrate its application for international asset allocation within 51 country indexes and 888... -
Latitudinal gradients and poleward expansion of mangrove ecosystems in South Africa: 50 years after Macnae’s first assessment
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: N Peer --- DST/NRF Research Chair in Shallow-Water Ecosystems, South Africa A Rajkaran --- Department of Biodiversity and Conservation Biology, South Africa NAF Miranda --- DST/NRF Research Chair in Shallow-Water Ecosystems, South Africa RH Taylor --- Department of Hydrology, South Africa B Newman --- CSIR Natural Resources and the Environment, South Africa F Porri --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa JL Raw --- Department of Botany, South Africa SP Mbense --- Department of Botany, South Africa JB Adams --- Department of Botany, South Africa R Perissinotto --- DST/NRF Research Chair in Shallow-Water Ecosystems, South AfricaMangroves occur in South African estuaries at their poleward distribution limits, extending into temperate habitats. In 1963, William Macnae published the first comprehensive assessment of mangrove swamps in South Africa and made firsthand observations of these mangrove ecosystems. This article... -
Evaluation of satellite retrievals of water quality parameters for Lake Victoria in East Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Gidudu --- Department of Geomatics and Land Management, Uganda R Mugo --- Regional Centre for Mapping Resource for Development, Nairobi Kenya L Letaru --- Department of Geomatics and Land Management, Uganda J Wanjohi --- Regional Centre for Mapping Resource for Development, Nairobi Kenya R Nakibule --- Department of Geomatics and Land Management, Uganda E Adams --- Earth System Science Centre–University of Alabama in Huntsville, USA A Flores --- Earth System Science Centre–University of Alabama in Huntsville, USA B Page --- Earth System Science Centre–University of Alabama in Huntsville, USA W Okello --- National Fisheries Resources Research Institute, UgandaLake Victoria in East Africa is a major ecosystem, whose size and importance has warranted the exploration of MODIS imagery to provide continuous and accurate water quality information. To this effect, two sea expeditions (in November 2014 and February 2015)... -
Triggers of phytoplankton bloom dynamics in permanently eutrophic waters of a South African estuary
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DA Lemley --- Botany Department and the Institute for Coastal and Marine Research, South Africa JB Adams --- Botany Department and the Institute for Coastal and Marine Research, South Africa NA Strydom --- Zoology Department, South AfricaThe permanently eutrophic Sundays Estuary experiences recurrent harmful algal blooms (HABs) of Heterosigma akashiwo (Raphidophyceae). This study aimed to identify the environmental variables shaping phytoplankton community composition and succession patterns during a typical spring/summer harmful algal bloom (HAB) period. Monitoring... -
Synchronous oligometastases in cervical cancer: a case report
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: BT Guzha --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa N Ngxola --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa T Adams --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa L Rogers --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa N Mbatani --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa H-T Wu --- South African Medical Research Council (SAMRC)/University of Cape Town (UCT) Gynaecological Cancer Research Centre, Cape Town, South Africa, N Fakie --- South African Medical Research Council (SAMRC)/University of Cape Town (UCT) Gynaecological Cancer Research Centre, Cape Town, South Africa, V Muzenda --- Department of Radiology, South Africa LA Denny --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South AfricaIncidence and mortality of cervical cancer in South Africa is still very high and 4-6% of women present with FIGO stage IVB disease. However, the management of oligometastatic cervical cancer is not well decribed in literature. Treatment of stage IVB... -
Response of arthropod communities to plant-community rehabilitation efforts after strip mining on the semi-arid west coast of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Adam Steed --- Department of Conservation Ecology and Entomology, South Africa Rudi Swart --- Department of Conservation Ecology and Entomology, South Africa Marco J Pauw --- South African Environmental Observation Network (SAEON): Arid Lands Node, South Africa Francois Roets --- Department of Conservation Ecology and Entomology, South AfricaStrip mining in arid ecosystems causes extreme ecological destruction that may take decades to recover. The present study examined the effect of different plant-community rehabilitation treatments on arthropods after strip mining in the arid Namaqualand region of South Africa. Vegetation... -
On Record: Popular Afrikaans Music & Society
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Kirsten Nicole Adams --- Stellenbosch University, -
Population fluctuations of Cerithidea decollata (Gastropoda: Potamididae) in mangrove habitats of the St Lucia Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JL Raw --- , South Africa GM Rishworth --- , South Africa R Perissinotto --- , South Africa JB Adams --- , South AfricaMangrove macrobenthos species are used as ecological indicators as they are sensitive to changes in sediment properties. In this study, the population density of the common mangrove whelk Cerithidea decollata was assessed during different environmental conditions in the St Lucia... -
Impact of human activities on the reproduction of Hooded Vultures Necrosyrtes monachus in Burkina Faso
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Clément Daboné --- Laboratory of Animal Biology and Ecology, Burkina Faso Ralph Buij --- Department of Animal Ecology, The Netherlands Adama Oueda --- Laboratory of Animal Biology and Ecology, Burkina Faso Jacques Boko Adjakpa --- Laboratory of Research in Applied Biology, Benin Wendengoudi Guenda --- Laboratory of Animal Biology and Ecology, Burkina Faso Peter DM Weesie --- Science and Society Group, Faculty of Sciences and Engineering, The NetherlandsDuring the last decades, the critically endangered Hooded Vulture Necrosyrtes monachus has strongly declined across its African range. Although direct persecution has been suggested as a major cause of this decline, little is known about the impact of humans on... -
Use of Landsat multi-temporal imagery to assess secondary growth Miombo woodlands in Luanshya, Zambia
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Reuben Lungu Lembani --- School of Geography, Archaeology and Environmental Studies, South Africa Jasper Knight --- School of Geography, Archaeology and Environmental Studies, South Africa Elhadi Adam --- School of Geography, Archaeology and Environmental Studies, South AfricaMiombo woodlands are the most extensive natural forest type in subtropical Africa, supporting the livelihood of over 100 million urban and rural settlers. These forests continue to experience extensive deforestation and land degradation due to land use land cover (LULC)... -
Geographic variation in West African Agama picticauda: insights from genetics, morphology and ecology
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Sneha Krishnan --- , USA 80526, 4257858934 Caleb Ofori-Boateng --- , , Ghana Matthew K Fujita --- , , USA Adam D Leaché --- , USAWest Africa is a region characterised by high species diversity and endemism, making it an ideal region to study the evolution of genetic and phenotypic differentiation. Species in this region often vary in morphology and genetics; however, the specific drivers... -
Inter- and intra-cultural variation in learning-through-participation among Hadza and BaYaka forager children and adolescents from Tanzania and the Republic of Congo
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sheina Lew-Levy --- Department of Psychology, United Kingdom Alyssa N. Crittenden --- Department of Anthropology, USA Adam H. Boyette --- Thompson Writing Program, USA Ibrahim A. Mabulla --- Department of Archaeology and Heritage, Tanzania Barry S. Hewlett --- Department of Anthropology, USA Michael E. Lamb --- Department of Psychology, United KingdomWe examined cross-cultural variation in children’s learning-through-participation in economic work in two forager societies; the Hadza of Tanzania and the BaYaka of the Republic of Congo. We used observational data from 46 Hadza (41% female) and 65 BaYaka (48% female)... -
Child and adolescent mental health in Africa: A qualitative analysis of the perspectives of emerging mental health clinicians and researchers using an online platform
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Eugene Lee Davids --- Adolescent Health Research Unit, Division of Child & Adolescent Psychiatry, South Africa Leigh Adams Tucker --- Department of Psychology, South Africa Grace Nduku Wambua --- See Me, Kenya Deborah Leigh Fewster --- Occupational Therapy Department, South Africa Liezl Schlebusch --- Centre for Autism Research in Africa, Division of Child and Adolescent Psychiatry, South Africa Saira BS Karrim --- Speech-Language Therapy, South Africa Mouna Attia --- Psychiatry Department, Tunisia Joachim Nyoni --- Ministry of General Education, Zambia Fikirte Girma Bayouh --- Department of Psychiatry, Ethiopia Hillary Kuteesa --- College of Health Science, Uganda Takoua Brahim --- Psychiatry Department, Tunisia Michelle Hoogenhout --- Division of Developmental Paediatrics, South Africa Rahma Ben Moussa Kahloul --- Psychiatry Department, Tunisia Nicola Jearey-Graham --- Psychology Department, South Africa Habte Belete Gobie --- College of Medicine and Health Science, Ethiopia Joyce Sserunjogi Nalugya --- Department of Psychiatry, UgandaObjective: Using a social ecological framework, this study aimed to establish emerging mental health clinicians and researchers’ perspectives about child and adolescent mental health (CAMH) in Africa. -
Rings of continuous functions vanishing at infinity on a frame
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ali Akbar Estaji --- Faculty of Mathematics and Computer Sciences, Iran Ahmad Mahmoudi Darghadam --- Faculty of Mathematics and Computer Sciences, IranLet C(X) denote the ring of all real-valued continuous functions on a topological space X; and C∞(X) be the subring of all functions C(X) which vanish at infinity. In [2], the paper “Rings of continuous functions vanishing at infinity,” (Comment... -
Where Worlds Collide
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Kirsten Nicole Adams --- Independent researcher, -
Mapping distribution of water hyacinth (Eichhornia crassipes) in Rwanda using multispectral remote sensing imagery
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JA Mukarugwiro --- School of Animal, Plant and Environmental Sciences (APES), South Africa SW Newete --- School of Animal, Plant and Environmental Sciences (APES), South Africa E Adam --- School of Geography, Archaeology and Environmental Studies (GAES), South Africa F Nsanganwimana --- African Center of Excellence for Innovative Teaching & Learning Mathematics & Science, Rwanda KA Abutaleb --- Institute for Soil, Climate and Water, South Africa MJ Byrne --- School of Animal, Plant and Environmental Sciences (APES), South AfricaWater hyacinth, Eichhornia crassipes (C. Mart) Solms (Pontederiaceae), is an invasive aquatic macrophyte with major negative economic and ecological impacts in Rwanda and other East African countries since its establishment in the region in the 1960s. Reliable estimates of water... -
Characterisation of selected micro-estuaries and micro-outlets in South Africa using microalgal, zooplanktonic and macrozoobenthic assemblages
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ML Magoro --- South African Institute for Aquatic Biodiversity, South Africa T Dalu --- South African Institute for Aquatic Biodiversity, South Africa LRD Human --- Department of Botany, South Africa R Perissinotto --- DST/NRF SARChI Chair in Shallow Water Ecosystems, South Africa SHP Deyzel --- South African Environmental Observation Network (SAEON), South Africa TH Wooldridge --- Department of Zoology, Institute for Coastal and Marine Research (CMR), South Africa JB Adams --- DST/NRF SARChI Chair in Shallow Water Ecosystems, South Africa AK Whitfield --- South African Institute for Aquatic Biodiversity, South AfricaSouth Africa has approximately 200 micro-estuaries and micro-outlets along its more than 3 000 km of coastline. Many of these microsystems (i.e. micro-outlets and micro-estuaries) share some characteristics with temporarily open/closed estuaries, but differ in that they are supplied by... -
A comparison between the morphological and molecular approach to identify the benthic diatom community in the St Lucia Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Nunes --- Botany Department and Institute for Coastal and Marine Research, South Africa JB Adams --- Botany Department and Institute for Coastal and Marine Research, South Africa S Van Aswegen --- Department of Biochemistry and Microbiology, South Africa GF Matcher --- Department of Biochemistry and Microbiology, South AfricaThe use of diatoms as bioindicators to detect human-induced change is a globally accepted monitoring tool. DNA metabarcoding is an effective complementary tool to standard microscopic methods for species identification, providing reliable and timeous diatom assessments in a range of... -
Are macroeconomic factors adequate proxies for systematic influences in stock returns? A South African perspective
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Jan J. Szczygielski --- Department of Financial Management, Gauteng, South Africa Leon M. Brümmer --- Department of Financial Management, Gauteng, South Africa Hendrik P. Wolmarans --- Department of Financial Management, Gauteng, South Africa Adam Zaremba --- Dubai Business School, United Arab EmiratesWe investigate whether macroeconomic factors adequately proxy for systematic influences in stock returns within the South African context. We also investigate whether a commonly used solution to factor omission in macroeconomic factor models, the residual market factor, adequately reflects systematic... -
Breastfeeding practices among mothers of children aged 1–24 months in Egor Local Government Area of Edo State, Nigeria
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: AO Atimati --- Department of Child Health, Nigeria VY Adam --- Department of Community Health, NigeriaObjective: The aim was to determine the breastfeeding practices of mothers of children two years and below in Egor Local Government Area (LGA) of Edo State. -
The development and implementation of a management plan for the Seekoei Estuary, South Africa: a case study guided by socio-economic issues
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TH Wooldridge --- Department of Zoology and Institute for Coastal and Marine Research, South Africa JB Adams --- Department of Botany and Institute for Coastal and Marine Research, South AfricaThe large Temporarily Closed Seekoei Estuary has a long history of poor management. In 1969, a swimming pool complex was built in a position impinging on the mouth. The construction of a 500 m causeway across the lagoon connecting the... -
Physico-chemical and microalgal gradients change rapidly in response to mouth closure in a predominantly open estuary
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DA Lemley --- Botany Department and the Institute for Coastal and Marine Research, South Africa JB Adams --- Botany Department and the Institute for Coastal and Marine Research, South AfricaA third of South Africa’s freshwater flow no longer reaches the coast, yet few systems have shifted from being permanently open to temporarily closed. For the first time since 1969, the Gamtoos Estuary mouth closed in June 2018, because of... -
Salt marsh elevation and responses to future sea-level rise in the Knysna Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JL Raw --- DST/NRF Research Chair in Shallow Water Ecosystems, Department of Botany, South Africa T Riddin --- DST/NRF Research Chair in Shallow Water Ecosystems, Department of Botany, South Africa J Wasserman --- DST/NRF Research Chair in Shallow Water Ecosystems, Department of Botany, South Africa TWK Lehman --- DST/NRF Research Chair in Shallow Water Ecosystems, Department of Botany, South Africa TG Bornman --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa JB Adams --- DST/NRF Research Chair in Shallow Water Ecosystems, Department of Botany, South AfricaSea-level rise is a significant threat to salt marshes. However, these habitats can respond by increasing their relative elevation, or by migrating into adjacent areas. Here we provide the first report on surface elevation change for salt marsh at the... -
Nutrient fluxes from sediments pose management challenges for the Knysna Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LRD Human --- South African Environmental Observation Network, Elwandle Coastal Node, South Africa R Weitz --- Department of Botany, Institute for Coastal and Marine Research, South Africa BR Allanson --- Knysna Basin Project, Department of Zoology and Entomology, South Africa JB Adams --- Department of Botany, Institute for Coastal and Marine Research, South AfricaThis study investigated seasonal dynamics of benthic nutrient fluxes using in situ benthic chambers deployed over a 24–hour period at the sediment water interface for four distinct regions of the Knysna Estuary. The sediment in the Upper Estuary, Lagoon and... -
Knysna Estuary health: ecological status, threats and options for the future
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L Claassens --- Department of Zoology and Entomology, South Africa RSK Barnes --- Department of Zoology and Entomology, South Africa J Wasserman --- Department of Botany, DST/NRF Research Chair in Shallow Water Ecosystems, South Africa SJ Lamberth --- Fisheries Research and Development, Department of Environment, Forestry and Fisheries, South Africa NAF Miranda --- Department of Botany and Zoology, South Africa L van Niekerk --- Council for Scientific and Industrial Research, South Africa JB Adams --- Department of Botany, DST/NRF Research Chair in Shallow Water Ecosystems, South AfricaThe Knysna Estuary is South Africa's most important estuary in terms of conservation, containing an estimated 42% of all estuarine biodiversity. Despite formal protection the estuary is open access and vulnerable to resource exploitation, development, pollution and freshwater inflow alterations... -
Nutrient enrichment as a threat to the ecological resilience and health of South African microtidal estuaries
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JB Adams --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa S Taljaard --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa L van Niekerk --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa DA Lemley --- DST/NRF Research Chair in Shallow Water Ecosystems, South AfricaNutrient pollution in South African estuaries is described using a Driver-Pressure-State-Impact-Response framework. The root cause (‘driver’) of deteriorating water quality is rapid population growth that leads to increasing inputs from wastewater treatment works (WWTWs), stormwater run-off and agricultural return flow... -
An Estuary Ecosystem Classification that encompasses biogeography and a high diversity of types in support of protection and management
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L van Niekerk --- Council for Scientific and Industrial Research (CSIR), South Africa JB Adams --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa NC James --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa SJ Lamberth --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa CF MacKay --- Oceanographic Research Institute, SAAMBR, South Africa JK Turpie --- South African Institute for Aquatic Biodiversity, South Africa A Rajkaran --- Biodiversity and Conservation Biology, South Africa SP Weerts --- Council for Scientific and Industrial Research (CSIR), South Africa AK Whitfield --- South African Institute for Aquatic Biodiversity, South AfricaFor nearly three decades, the Whitfield (1992) characterisation scheme served as a reference framework to type South African estuaries. We outline a revised ecosystem classification scheme that incorporates biogeographical zonation and introduces new types. Coastal outlets were re-categorised as estuaries... -
Perspectives on Protecting African Estuarine Ecosystems in the Anthropocene
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Alan Whitfield --- South African Institute for Aquatic Biodiversity, South Africa Janine Adams --- Department of Botany and Institute for Coastal and Marine Research, South Africa -
High flow variability and storm events shape the ecology of the Mbhashe Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NC James --- South African Institute for Aquatic Biodiversity, South Africa JB Adams --- Institute for Coastal and Marine Research, South Africa AD Connell --- South African Institute for Aquatic Biodiversity, South Africa SJ Lamberth --- South African Institute for Aquatic Biodiversity, South Africa CF MacKay --- Oceanographic Research Institute, South Africa GC Snow --- Institute for Coastal and Marine Research, South Africa L van Niekerk --- Institute for Coastal and Marine Research, South Africa AK Whitfield --- South African Institute for Aquatic Biodiversity, South AfricaThe possible impacts of extreme events on the ecology of selected aquatic biota within the Mbhashe Estuary were investigated during a four year (2010–2013) spring sampling programme. During periods of low to average flow conditions the estuary is shallow, turbid... -
A socio-ecological systems approach towards future research for the restoration, conservation and management of southern African estuaries
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JB Adams --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa AK Whitfield --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa L Van Niekerk --- DST/NRF Research Chair in Shallow Water Ecosystems, South AfricaThis Reflections article highlights the growing pressures that southern African estuaries are experiencing in the Anthropocene, as identified by the research presented in this Special Medal Issue. Estuaries are exposed to multiple stressors, and their responses to climate change are... -
Preliminary structural validation of the Afrikaans version of the Children’s Hope Scale
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Donnay Manuel --- Child and Family Studies, South Africa Maria Florence --- Child and Family Studies, South Africa Sabirah Adams --- Language Development Group, Centre for Higher Education Development, South Africa Mulalo Mpilo --- Child and Family Studies, South Africa Anton Delport --- Child and Family Studies, South Africa Mariska Pienaar --- Department of Psychology, South Africa Deborah Sinclair --- Child and Family Studies, South Africa Shazly Savahl --- Child and Family Studies, South AfricaThis study aimed to test the overall fit structure and reliability of scores from the Afrikaans version of the Children’s Hope Scale. The validation sample comprised of 899 adolescent learners selected from 12 schools located in the Western Cape province... -
Mapping subtidal estuarine habitats with a remotely operated underwater vehicle (ROV)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Wasserman --- Botany Department, DST/NRF Research Chair in Shallow Water Ecosystems, South Africa L Claassens --- Department of Zoology and Entomology, South Africa JB Adams --- Botany Department, DST/NRF Research Chair in Shallow Water Ecosystems, South AfricaSubtidal habitats have not yet been accounted for in habitat maps of South African estuaries. In this study, a novel method for mapping subtidal estuarine habitats, using a remotely operated underwater vehicle (ROV) piloted from a boat, was developed and... -
School-based yoga intervention increases adolescent resilience: a pilot trial
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Joshua C Felver --- , USA Rachel Razza --- , USA Melissa L Morton --- , USA Adam J Clawson --- , USA Rebecca Shaffer Mannion --- , USABackground: Youth often experience stressors leading to negative long-term outcomes. Enhancing social-emotional attributes is important to foster resiliency to face these challenges. Yoga may enhance social-emotional resiliency among youth. However, research replicating such results in school-settings is limited. This research... -
Advanced neuroendocrine carcinoma (Merkel cell carcinoma) of the vulva: a case report and literature review
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Adam R Botha --- , South Africa Langanani Mbodi --- , South Africa Reubina Wadee --- , South AfricaNeuroendocrine carcinomas (Merkel cell carcinomas) of the vulva are extremely rare tumours, with very few cases reported to date. Herein, a primary neuroendocrine carcinoma (Merkel cell carcinoma) of the vulva is reported. A 34-year-old HIV-positive female on antiretroviral therapy presented... -
A review of vulvar carcinoma at Groote Schuur hospital for the period 2002 to 2012 with particular emphasis on HPV-related disease
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Francisca E Loggenberg --- , South Africa Tracey S Adams --- , South AfricaBackground: Vulvar carcinoma is rare and ranks fourth amongst the gynaecological malignancies. GLOBOCAN reported 44 235 new cases in 2018. There has been a rise in the number of cases of vulvar carcinoma in recent years and younger women are... -
Threats posed by xenoestrogenic chemicals to the aquatic ecosystem, fish reproduction and humans: a review
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Badamasi --- , Uganda R Odong --- , Uganda C Masembe --- , UgandaXenoestrogens mimic and interfere with natural functions of oestrogens and adversely affect fish reproduction. Pesticides, plastics, wastewaters and pharmaceuticals are sources of xenoestrogens, and are carried through surface runoffs to water bodies at concentration levels that are harmful to aquatic... -
Beta diversity of pelagic assemblages at fish aggregating devices in the open ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Forget --- , France L Dagorn --- , France B Mérigot --- , France JC Gaertner --- , French Polynesia J Robinson --- , Seychelles PD Cowley --- , South Africa MS Adam --- , Maldives Y Rilwan --- , Maldives M Koonjul --- , Mauritius V Mangar --- , Mauritius M Taquet --- , French Polynesia F Ménard --- , FranceOwing to difficulties in accessing the vast open ocean, the beta (β) diversity of pelagic fish assemblages remains poorly studied. We investigated the relationship between assemblage similarity and geographical distance between anchored fish aggregating devices (FADs), sampled by standardised underwater... -
Small-minus-big predicts betting-against-beta: Implications for international equity allocation and market timing
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Adam Zaremba --- , PolandWe demonstrate a strong relationship between short-term small-firm premium and future low-beta anomaly performance. Rises (declines) in small-firm prices temporarily improve (deteriorate) funding conditions, benefiting (impairing) the short-run returns on the low-beta strategy. To investigate this phenomenon, we examine returns... -
Gonadal development and intersex condition of marbled lungfish, Protopterus aethiopicus (Heckel, 1851), in contaminated sites in Lake Victoria, Uganda
Item type: Journal Article • Journal: African Zoology • Authors: Inuwa Badamasi --- , Uganda Robinson Odong --- , Uganda Charles Masembe --- , UgandaThe first evidence of the impact of environmental contamination on populations of Protopterus aethiopicus (Heckel, 1851) in terms of body indices, cellular development (histology) and intersex condition in Lake Victoria, Uganda is provided. Specimens were obtained from the more polluted... -
Women living with HIV in Nigeria: Predictive influence of hardiness on perceived stress
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Aliyu Adamu --- , South Africa Gugu Mchunu --- , South Africa Joanne Rachel Naidoo --- , South AfricaBackground: Women living with HIV experience severe HIV-related stress in sub-Saharan Africa. But evidence shows that individuals with high levels of the psychological hardiness characteristic who accept stressful situations as meaningful experience may withstand psychological stress. However, the literature on... -
Reflections concerning spurfowl and francolin species recommendations contained in Mandiwana-Neudani et al. (2019a and 2019b)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Nigel Hunter --- , Kenya Don Turner --- , United Kingdom Nik Borrow --- , United Kingdom Brian Finch --- , Kenya Adam Scott Kennedy --- , United Kingdom Terry Stevenson --- , United Kingdom Neil Baker --- , United Republic of Tanzania Nigel Redman --- , United KingdomRecently, two papers by Mandiwana-Neudani et al. (2019a, 2019b) revisited the taxonomy of all Afrotropical spurfowl and francolins and proposed significant changes at the species level. A careful review of the papers suggests there are key deficiencies and inadequate explanations... -
Rethinking open government as innovation for inclusive development: Open access, data and ICT in South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Paul Plantinga --- , South Africa Rachel Adams --- , South AfricaOpen government has come to be closely associated with innovation for inclusive development (IID). These two areas of practice and research have converged around similar mechanisms aimed at achieving inclusive development outcomes including: open interaction between government, technologists and end-users... -
The influence of estuary eutrophication on the benthic diatom community: a molecular approach
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Nunes --- , South Africa DA Lemley --- , South Africa GF Matcher --- , South Africa JB Adams --- , South AfricaThe occurrence of harmful algal blooms (HABs) is increasing in frequency and intensity in South African estuaries because of eutrophication. This study used DNA metabarcoding to identify the benthic diatom community structure in the eutrophic Sundays Estuary. The recurrent HAB... -
Salt marsh erosion in a microtidal estuary
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Riddin --- , South Africa JB Adams --- , South AfricaSalt marshes protect estuary banks from erosion by acting as buffers between marine and terrestrial environments. Residents living near the Breede River estuary, Western Cape Province, South Africa, raised concerns about ongoing erosion evident at Groenpunt, the main salt marsh... -
Testing assertions of dietary specialisation: a case study of the diet of Aparallactus capensis
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Bryan Maritz --- University of the Western Cape, South Africa Aadam Rawoot --- University of the Western Cape, South Africa Ryan van Huyssteen --- University of the Western Cape, South AfricaThe lack of detailed natural history information required to precisely characterise the diets of many organisms often results in the use of generalised descriptions of those diets. These descriptions can become dogmatic, and should be challenged with novel observational data... -
Social and economic effects of marine protected areas in South Africa, with recommendations for future assessments
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JB Mann-Lang --- , South Africa GM Branch --- , South Africa BQ Mann --- , South Africa KJ Sink --- , South Africa SP Kirkman --- , South Africa R Adams --- , South AfricaResearch on the socio-economic aspects of marine protected areas (MPAs) in South Africa is reviewed to guide evaluation and integration. After a brief international review, we used declaration notices and management plans to determine the extent to which social and... -
Evaluating the evidence for ecological effectiveness of South Africa’s marine protected areas
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SP Kirkman --- , South Africa BQ Mann --- , South Africa KJ Sink --- , South Africa R Adams --- , South Africa T-C Livingstone --- , South Africa JB Mann-Lang --- , South Africa MC Pfaff --- , South Africa T Samaai --- , South Africa MG van der Bank --- , South Africa L Williams --- , South Africa GM Branch --- , South AfricaWe reviewed 140 papers to assess the ecological effectiveness of South Africa’s marine protected areas (MPAs). Evidence was assessed for coverage and representivity, protection of important biodiversity areas, other recognised elements of effectiveness, connectivity, and ecological effects—from the scale of... -
Rotifers in the Niger River, Niger: diversity and abundance in relation to environmental parameters
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: H Souley Adamou --- , France B Alhou --- , Niger M Tackx --- , France F Azémar --- , FranceA first study of the rotifers of the Niger River in Niger is reported here. Two surveys took place under contrasting hydrological conditions: low-water level (16 April to 8 May 2018) and high-water level (1 to 15 February 2019). Zooplankton... -
Cover crop performance in an apple orchard and its effect on the macro-elements and carbon levels in a loamy sand
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Johan C Fourie --- , Carolyn L Howell --- , Marde Booyse --- , Kim M Adams --- ,Five treatments were applied in a newly established orchard on a loamy sand near Vyeboom, South Africa. Treatment 1 (T1): chemical control in the tree row from bud break to harvest, with dwarf fescue (Festuca arundinaceae Schreb.) slashed regularly in... -
Factors influencing attitudes and intention to adopt financial technology services among the end-users in Lagos State, Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Yusuf Opeyemi Akinwale --- , Saudi Arabia Adam Konto Kyari --- , Saudi ArabiaFinancial technology (Fintech) innovation has brought a dynamic change to the financial sector as new products and services are offered by conventional banks and other companies offering banking services through various online platforms. The attitudes of the end-users tend to... -
How citizen scientists are rapidly generating big distribution data: lessons from the Arewa Atlas Team, Nigerian Bird Atlas Project
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Abubakar S Ringim --- , Nigeria Sulaiman I Muhammad --- , Nigeria Longji A Bako --- , Nigeria Haruna M Abubakar --- , Nigeria Sulaiman M Isa --- , Nigeria Doofan J Nelly --- , Nigeria Aliyu A Bajoga --- , Nigeria Abdulhamid S Bunu --- , Nigeria Hafiz A Adam --- , Nigeria Idris M Jalo --- , Nigeria Jonathan O Eveso --- , Nigeria Eugene D Mathew --- , Nigeria Bello A Danmallam --- , Nigeria Umbule Mador --- , Nigeria Jennifer I Paul --- , Nigeria Isuwa Aminu --- , Nigeria Alai Lawal --- , Nigeria Joseph I Izang --- , Nigeria Ponyil N Abu --- , NigeriaThe Arewa Atlas Team (AAT) in northern Nigeria has set an example for a robust methodological data collection and made a big impact for the African Bird Atlas Project. To broaden national bird atlas projects and coverage across the continent,... -
Mealtime challenges and food selectivity in children with autism spectrum disorder in South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Skye Nandi Adams --- , South Africa Raeesa Verachia --- , South Africa Kim Coutts --- , South Africa -
Disaggregation and assessment of estuarine pressures at the country-level to better inform management and resource protection – the South African experience
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L van Niekerk --- , South Africa S Taljaard --- , South Africa SJ Lamberth --- , South Africa JB Adams --- , South Africa SP Weerts --- , South Africa CF MacKay --- , South AfricaGlobally, the ability of estuaries to sustain functionality and productivity is deteriorating rapidly under ever-increasing anthropogenic pressures. We present a systematic approach to identify, characterise and rank global pressures affecting estuaries. Six main pressure categories are reviewed: freshwater flow modification;... -
The mediating role of ICT regulation on the effects of ICT access and ICT use on e-participation: Evidence from structural equation modelling and necessary condition analysis
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ibrahim Osman Adam --- University for Development Studies, Ghana Muftawu Dzang Alhassan --- SD Dombo University of Business and Integrated Development Studies, GhanaRecently, governments have been using information and communication technologies (ICTs) to provide platforms for citizen engagement and involvement through e-participation. This paper aims to explore the drivers behind e-participation in a global context. The discourse on e-participation in the information... -
Local perceptions and sociocultural value of Hooded Vultures Necrosyrtes monachus in Burkina Faso, West Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Clément Daboné --- University Centre of Tenkodogo/University Thomas Sankara, Burkina Faso Adama Ouéda --- University Joseph Ki-Zerbo, Burkina Faso Lindy J Thompson --- , South Africa Jacques Boco Adjakpa --- University of Abomey-Calavi, Benin Peter DM Weesie --- University of Groningen, The NetherlandsHooded Vultures have suffered from dramatic population declines in recent decades owing to anthropogenic pressures. To properly address this threat, the sociocultural perspectives towards this species should be considered. We examined peoples' perceptions, knowledge and beliefs on Hooded Vulture's sociocultural... -
Aspects of the nonbreeding ecology of the Tree Pipit Anthus trivialis in and around Amurum Forest Reserve, Jos Plateau, Nigeria
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Taiwo A Adams --- University of Jos Biological Conservatory, Nigeria Samuel T Ivande --- University of Jos Biological Conservatory, Nigeria Mark Wilson --- , United KingdomTo advance our knowledge about the nonbreeding ecology of the Tree Pipit Anthus trivialis, this study investigated its population dynamics, habitat utilisation and foraging behaviour, from October to December 2018, in and around the Amurum Forest Reserve, located in the... -
Investigating the potential for saltpan restoration for the provision of multiple ecosystem services
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Johan Wasserman --- , South Africa Janine B Adams --- , South Africa Daniel A Lemley --- , South AfricaSaltpans are increasingly being abandoned around the world, leading to the loss of ecosystem services provided by these unique semi-natural wetlands. The desertion of a saltpan at the Swartkops Estuary, South Africa has left behind a large area of desiccated... -
Flow alterations and nutrient loading reduce primary producer variability in a temporarily closed microtidal estuary in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Monique Nunes --- , South Africa Daniel A Lemley --- , South Africa Janine B Adams --- , South AfricaPrimary producer responses to cumulative regulating factors were investigated in a temporarily closed microtidal estuary. We hypothesised that the phytoplankton chlorophyll-a concentration (Chl a) and invasive alien aquatic plant (IAAP) abundance would be highest during the low-flow season and that... -
Beyond HbA1c cardiovascular protection in type 2 diabetes mellitus
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: UG Adamu --- University of the Witwatersrand and the Charlotte Maxeke Johannesburg Academic Hospital, South Africa D Mpanya --- University of the Witwatersrand and the Charlotte Maxeke Johannesburg Academic Hospital, South Africa A Patel --- University of the Witwatersrand and the Charlotte Maxeke Johannesburg Academic Hospital, South Africa N Tsabedze --- University of the Witwatersrand and the Charlotte Maxeke Johannesburg Academic Hospital, South AfricaCardiovascular disease is a significant cause of morbidity and mortality for individuals living with type 2 diabetes mellitus (T2DM). These patients have double the risk of atherosclerotic cardiovascular disease (ASCVD) compared with the general population. Furthermore, approximately a third of... -
Editorial review: Male circumcision, gender and HIV prevention in sub-Saharan Africa: a (social science) research agenda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer --- Human Sciences Research Council, Cheikh I Niang --- Université Cheikh Anta Diop, Adamson S. Muula --- University of Malawi, Kasonde Bowa --- University Teaching Hospital Lusaka, Linus Okeke --- University of Ibadan, Hamadou Boiro --- Université Cheikh Anta Diop, Chiweni Chimbwete --- University of Witwatersrand, -
Prevalence and social correlates of sexual intercourse among schoolgoing adolescents in Namibia
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kazhila Croffat Chinsembu --- Department of Biological Sciences, University of Namibia, Seter Siziya --- Department of Community Medicine of the School of Medicine, University of Zambia, Adamson S Muula --- Community and Public Health, University of Malawi College of Medicine, Emmanuel Rudatsikira --- Division of Epidemiology and Biostatistics, School of Public Health, San Diego State University,Adolescent sexuality is an important public health issue, as it affects risk to contract HIV and other sexually transmitted infections. The assessment of prevalence of sexual intercourse among adolescents is of public health significance, as it may guide policies and... -
Gender differences in university students' HIV/AIDS-related knowledge and sexual behaviours in Malawi: a pilot study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Pierson RT Ntata --- Chancellor College, University of Malawi, Adamson S Muula --- Flinders University Medical School, Australia Seter Siziya --- Medical Biostatistics in the School of Medicine, University of Zambia, Edrinnie E Kayambazinthu --- English Department, Chancellor College, University of Medicine,A cross-sectional study was conducted among first-year university students in Malawi to determine distributions of HIV/AIDS related knowledge, and sexual behaviours. A total of 314 (199 male and 115 female) students were eligible to participate, and of these 221 (70.4%)... -
An assessment of sex work in Swaziland: barriers to and opportunities for HIV prevention among sex workers
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Shalote Chipamaunga --- Faculty of Health Sciences, Centre for Health Science Education, University of the Witwatersrand, Adamson S Muula --- University of Malawi College of Medicine, Ronald Mataya --- Loma Linda University School of Public Health, USAThe HIV situation in virtually all southern African countries is a generalised epidemic. Despite the fact that almost all adult age and social groups have high HIV prevalence estimates, sex workers are disproportionally affected, with prevalence estimates higher than the... -
Qualitative evaluation of selected social factors that impact sexual risk-taking behaviour among African students in Kwazulu-Natal, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Ndumiso Daluxolo Ngidi --- , , South Africa Sibusiso Moyo --- , South Africa Thobile Zulu --- , , South Africa Jamila Khatoon Adam --- , South Africa Suresh Babu Naidu Krishna --- , South AfricaBackground: The incidence of HIV and AIDS continues to be a source of great concern within universities in South Africa. Furthermore, university students constitute an important community in the intervention against the HIV/AIDS epidemic. Students in the age group of... -
Navigating intimate sexual partnerships in an era of HIV: dimensions of couple relationship quality and satisfaction among adults in Eswatini and linkages to HIV risk
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Allison Ruark --- , , USA Edward C. Green --- , , USA Amy Nunn --- , USA Caitlin Kennedy --- , USA Alfred Adams --- , Netherlands Thandeka Dlamini-Simelane --- , Netherlands Pamela J. Surkan --- , USACouple relationship functioning impacts individual health and well-being, including HIV risk, but scant research has focused on emic understandings of relationship quality in African populations. We explored relationship quality and satisfaction in Eswatini (formerly Swaziland) using data from 148 in-depth... -
Restoration of South African estuaries: successes, failures and the way forward
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L Claassens --- Rhodes University, South Africa JB Adams --- Institute for Coastal & Marine Research, Nelson Mandela University, South Africa NM de Villiers --- Rhodes University, South Africa J Wasserman --- Institute for Coastal & Marine Research, Nelson Mandela University, South Africa AK Whitfield --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaMajor threats to South African estuaries include freshwater flow alterations, urbanisation, habitat transformation, deteriorating water quality, increased biological invasions and resource over-exploitation. Although South African estuary restoration is in its infancy, important lessons have been learnt through past efforts undertaken... -
Zooplankton distribution and community structure as a function of environmental variables in the Niger River and its tributaries in Niger
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: H Souley Adamou --- Université de Toulouse, France B Alhou --- Université Abdou Moumouni de Niamey, Niger M Tackx --- Université de Toulouse, France F Azémar --- Université de Toulouse, FranceThe Niger River and its main tributaries (Sirba, Tapoa and Mékrou) in Niger were sampled during high and low water flow with the objectives of (1) comparing the taxonomic structure, diversity and abundance of the zooplankton community (rotifers, copepods, crustaceans)... -
Effect of multi-month antiretroviral dispensing on HIV clinic attendance at 68 Nigerian Army Reference Hospital, Yaba, Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nkechinyere Harrison --- , Lagos Nigeria Ismail Lawal --- , Nigeria Kehinde Aribisala --- , Lagos Nigeria Kenneth Oruka --- , Lagos Nigeria Yakubu Adamu --- , Nigeria Patricia Agaba --- Walter Reed Army Institute of Research, USA Elizabeth Lee --- Walter Reed Army Institute of Research, USA Laura Chittenden --- , Nigeria Nathan Okeji --- , NigeriaBackground: Multi-month dispensing (MMD) of antiretroviral therapy has demonstrated benefits for HIV patients and health service delivery systems, including reduced frequency of hospital visits and improved retention. We evaluated the effect of 6-monthly dispensing (MMD6) on patient clinic attendance at... -
Optimising the rate and stages of application of nitrogen fertiliser for stevia under greenhouse conditions
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Alireza Eslami-Firouzabadi --- Shahrekord University Faculty of Agriculture, Islamic Republic of Iran Mojtaba Karimi --- Shahrekord University Faculty of Agriculture, Islamic Republic of Iran Ali Abbasi-Surki --- Shahrekord University Faculty of Agriculture, Islamic Republic of Iran Alireza Shafeinia --- Ramin Agricultural and Natural Resources University, Islamic Republic of Iran Fatemeh Derikvand-Moghadam --- Ramin Agricultural and Natural Resources University, Islamic Republic of IranNitrogen (N) is the nutrient most used by crop producers and its application may affect the N use efficiency in crop production. The present study was conducted in order to determine the optimum N fertiliser rate and application stages (S)... -
“Sex is sex, marriage is marriage”: infidelity amongst married women in Shamva, Zimbabwe
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Patience Chadambuka --- Midlands State University, Zimbabwe André Pelser --- University of the Free State, South Africa Victor Muzvidziwa --- Midlands State University, ZimbabweMany African societies adhere to a strong patriarchal norm as regards sexual relations, one that is unforgiving of female infidelity yet tolerates men’s extramarital affairs and even incorporates these into culture. This study reveals that, contrary to traditional assumptions defining... -
Governance challenges in Ghana’s artisanal and small-scale mining (galamsey) sector: Is stakeholder interaction the way forward?
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Issah Baddianaah --- University for Development Studies, Ghana Bernard Nuoleyeng Baatuuwie --- University for Development Studies, Ghana Abdul-Moomin Adams --- S.D. Dombo University of Business and Integrated Development Studies, GhanaArtisanal and small-scale mining (ASM) operations have surged in Ghana in recent years causing many environmental and social problems. The government has employed the military to eradicate illegal mining operations. However, despite the military’s countless efforts to clamp down on... -
The road towards effective governance and management of marine protected areas in South Africa: evolving policies, paradigms and processes
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SP Kirkman --- , South Africa P Kowalski --- , South Africa BQ Mann --- Oceanographic Research Institute (ORI), South Africa GM Branch --- University of Cape Town, South Africa MG van der Bank --- South African National Biodiversity Institute (SANBI), South Africa KJ Sink --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa P Fielding --- , South Africa JB Mann-Lang --- Oceanographic Research Institute (ORI), South Africa MC Pfaff --- University of Cape Town, South Africa D Kotsedi --- , South Africa R Adams --- , South Africa S Dlulisa --- , South Africa SL Petersen --- , MadagascarThe efficacy of marine protected areas (MPAs) depends on their governance and management. We review their history in South Africa and recognise four periods. Period 1 (1964–1994) provided initial protection but was based on exclusionary, preservationist policies, was ad hoc... -
“A spade was called a spade … ”: Youth and intervention implementers’ perceptions of a resilience-based HIV-prevention intervention for youth in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Fungai Mbengo --- Edith Cowan University, Australia Esther Adama --- Edith Cowan University, Australia Amanda Towell-Barnard --- Edith Cowan University, Australia Maggie Zgambo --- Edith Cowan University, AustraliaThe youth (15–24 years old) in South Africa remain at high risk of HIV infection despite varied efforts to control the disease. An understanding of the perspectives of relevant stakeholders of HIV-prevention interventions targeting the youth is important to guide... -
The effect of e-government development indices (EGDI) on corruption perception index in sub-Sahara Africa: A panel data analysis
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Chima Paul --- University of Abuja, Nigeria Samuel Olorunfemi Adams --- University of Abuja, NigeriaThe study aims to examine the impact of e-government development indices on the corruption perception index (CPI) using cross-sectional data covering the period 2012–2020. To achieve the objective of the study, the E-Government Development Index (EGDI), which comprises the Online... -
Gender-disaggregated analysis of sustainable intensification practices adoption: A case of northern Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdulai Adams --- SD. Dombo University of Business and Integrated Development Studies, Ghana Emmanuel Tetteh Jumpah --- Czech University of Life Sciences, Czech Republic Asaah Sumaila Mohammed --- CK. Tedam University of Technology and Applied Sciences, GhanaAgricultural productivity has remained low in Africa, especially among smallholder farmers. Women often suffer resource constraints and access to certain technologies needed to increase productivity relative to men. This study analyzes the effect of gender on the adoption of selected... -
Hooded Vultures Necrosyrtes monachus are still declining in West Africa: a nearly 50-year assessment study (1969–2019)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Clément Daboné --- University Centre of Tenkodogo/University Thomas Sankara, Burkina Faso Idrissa Ouédraogo --- University Joseph Ki-Zerbo, Burkina Faso Adama Ouéda --- University Joseph Ki-Zerbo, Burkina Faso Lindy J Thompson --- , South Africa Peter DM Weesie --- University of Groningen, The NetherlandsLarge-scale declines in vulture populations have been recorded in West Africa. One concern is that the current trend in Hooded Vulture Necrosyrtes monachus populations in West Africa is poorly known. To help fill this knowledge gap, we conducted nationwide road... -
Adolescent psychiatric inpatients’ perceptions of treatment and seclusion
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Miriam K Yurtbasi --- School of Clinical Sciences, Monash University, Australia Michael Gordon --- School of Clinical Sciences, Monash University, Australia Leeanne Fisher --- Austin Health, Child & Youth Mental Health Services Directorate, Australia Ric Haslam --- Mental Health, The Royal Children’s Hospital Melbourne, Australia Chidambaram Prakash --- Mental Health, The Royal Children’s Hospital Melbourne, Australia Bianca Blatchford --- Austin Health, Child & Youth Mental Health Services Directorate, Australia Christine Pavlou --- Early in Life Mental Health Service, Monash Children’s Hospital, Australia Daniel Darmanin --- Mental Health, The Royal Children’s Hospital Melbourne, Australia Stephanie Verstandig --- Early in Life Mental Health Service, Monash Children’s Hospital, Australia Adam Blake --- Mental Health, The Royal Children’s Hospital Melbourne, Australia Whitney Cornell --- Mental Health, The Royal Children’s Hospital Melbourne, Australia Lauren Cameron --- School of Clinical Sciences, Monash University, Australia Glenn Melvin --- School of Psychology, Faculty of Health, Deakin University, AustraliaObjectives: A great deal of attention is being directed at the use of seclusion in adolescent inpatient psychiatric units due to its forceful nature and negative impact on inpatients and staff. This mixed methods study aimed to explore and compare... -
Assessment of the impact of woody species encroachment on plant species diversity and the livelihood of pastoralists in southeastern Ethiopia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Abdulhakim Mahmud --- Madda Walabu University, Ethiopia Habte Telila --- Madda Walabu University, Ethiopia Lemessa Kumsa --- Adama Science and Technology University, EthiopiaThe study aimed to assess the encroachment of woody plants on the rangelands of the Dallo Manna district of Bale Zone, and their impact on plant species diversity and pastoral livelihoods. Plant data were collected from 45 plots at encroaching... -
Nest-site selection by Hooded Vultures Necrosyrtes monachus in the Sudano–Sahelian area of Burkina Faso
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Clément Daboné --- University Centre of Tenkodogo, Thomas Sankara University, Burkina Faso Lindy J Thompson --- , South Africa Adama Ouéda --- University Joseph Ki-Zerbo, Burkina Faso Idrissa Ouédraogo --- University Joseph Ki-Zerbo, Burkina Faso Peter DM Weesie --- University of Groningen, The NetherlandsUnderstanding the factors influencing selection of nesting habitat may be important in the placement and management of Vulture Safe Zones (areas where vultures can safely breed) and in the development of successful conservation programmes. In this study, we analysed the... -
Seasonal dynamics of forage nutrition in smallholder goat production systems in Malawi
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Andrew S Cooke --- University of Lincoln, UK Winchester Mvula --- Lilongwe University of Agriculture and Natural Resources, Malawi Patson Nalivata --- Lilongwe University of Agriculture and Natural Resources, Malawi Javier Ventura-Cordero --- Queen’s University Belfast, UK Lovemore C Gwiriri --- Coventry University, Taro Takahashi --- Rothamsted Research, UK Eric R Morgan --- Queen’s University Belfast, UK Michael RF Lee --- Harper Adams University, UK Andrews Safalaoh --- Lilongwe University of Agriculture and Natural Resources, MalawiForage and browse are a valuable natural resource in Malawi that can be used to support livestock production which, in turn, can contribute towards delivering income and nutrition to households and communities. However, the quality and quantity of forages can... -
Factors associated with uptake of HIV testing among clients diagnosed with sexually transmitted infections in Chegutu District, Zimbabwe, 2021
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Memory Chimsimbe --- University of Zimbabwe, Zimbabwe Pride Mucheto --- University of Zimbabwe, Zimbabwe Tsitsi P Juru --- University of Zimbabwe, Zimbabwe Addmore Chadambuka --- University of Zimbabwe, Zimbabwe Notion T Gombe --- University of Zimbabwe, Zimbabwe Gerald Shambira --- University of Zimbabwe, Zimbabwe Mufuta Tshimanga --- University of Zimbabwe, ZimbabweHIV testing services (HTS) enable early linkage to HIV prevention, treatment and care. A review of Chegutu District Health Information System 2 sexually transmitted infection (STI)/HIV data revealed HIV testing rates among those infected with STIs were 41%, 48%, 50%,... -
Factors affect the technical efficiency of micro and small enterprises in Ethiopia
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Adamu Mulu Ketema --- Former lecturer at Salale University at the Department of Economics, and Research and Development Officer at the Cooperative Bank of Oromia, EthiopiaMicro and small enterprises (MSEs) play a crucial role in Ethiopia's economy. Measuring the technical efficiency of enterprises is thus of interest to various stakeholders. This study measured and estimated technical efficiency using a stochastic frontier and a maximum-likelihood approach... -
Adoption and intensity of pearl millet technology packages in drought-prone areas of the Waghimra Zone, Ethiopia: A transition pathway for assuring food security
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Asmiro Abeje Fikadu --- Debre Tabor University, Ethiopia Girma Gezimu Gebre --- Alexander von Humboldt Research Fellow at Leibniz-Centre for Agricultural Landscape Research (ZALF), Germany Hisako Nomura --- , Japan Bishaw Adamtie Takele --- Debre Tabor University, Ethiopia Gedefaw Kindu Wubet --- Debre Tabor University, EthiopiaPearl millet, a climate-resilient crop, is advocated for combating food insecurity in drought-prone areas. To that end, the Ethiopian Agricultural Research Institute and agricultural extensions have been instrumental in promoting pearl millet technology packages. However, a more detailed understanding of... -
Modelling the perception of banking customers on mobile technology adoption in a developing economy
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Emmanuel Asafo-Adjei --- Global Development Institute, School of Environment, Education and Development, The University of Manchester, UK Anokye M. Adam --- Department of Finance, School of Business, University of Cape Coast, Ghana Peterson Owusu Junior --- Department of Finance, School of Business, University of Cape Coast, GhanaDespite the numerous risks and security dangers associated with mobile banking, an increasing number of banks in developing economies are appreciating the merits of mobile technology. Hence, we investigated customers’ perception of mobile technology adoption (MTA) in the banking industry,... -
Cross-realm biodiversity profile of the South African coastal zone
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LR Harris --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa JB Adams --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa A Dayaram --- Kirstenbosch Research Centre, South African National Biodiversity Institute (SANBI), South Africa LV Dunga --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa N Job --- Kirstenbosch Research Centre, South African National Biodiversity Institute (SANBI), South Africa SP Kirkman --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa SJ Lamberth --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa MC Pfaff --- University of Cape Town, South Africa JL Raw --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa GM Rishworth --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa A Robbins --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa KJ Sink --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa AL Skowno --- Kirstenbosch Research Centre, South African National Biodiversity Institute (SANBI), South Africa H van Deventer --- Council for Scientific and Industrial Research (CSIR), South Africa L van Niekerk --- Institute for Coastal and Marine Research, Nelson Mandela University, South AfricaSouth Africa’s coast is 3 113 km long and includes microtidal shores that experience semi-diurnal tides and mostly high wave energy. From west to east, the cool Benguela Current and the warm Agulhas Current drive steep gradients in climate and... -
Influence of water physico-chemical properties and vegetation type on the distribution of schistosomiasis intermediate host snails in Nelson Mandela Bay, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PS Campbell --- Nelson Mandela University, South Africa JB Adams --- Institute for Coastal and Marine Research and Department of Botany, Nelson Mandela University, South Africa M Thwala --- Nelson Mandela University, South Africa O Oyedele --- Nelson Mandela University, South Africa PE Melariri --- Nelson Mandela University, South AfricaSchistosomiasis is an infectious water-borne disease transmitted by Schistosoma flatworms. Humans become infected through skin penetration following exposure to water contaminated with schistosome cercariae. This study assessed the physico-chemical properties of the water bodies, vegetation type, distribution and habitat presence... -
Population growth of Daphnia magna cultured in manure-fertilised water under laboratory conditions
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Adamneh Dagne --- Ethiopian Institute of Agricultural Research (EIAR), National Fishery and other Aquatic Life Research Center, Ethiopia Getacher Beyene --- Ethiopian Institute of Agricultural Research (EIAR), National Fishery and other Aquatic Life Research Center, Ethiopia Alemayehu Wubie --- Ethiopian Institute of Agricultural Research (EIAR), National Fishery and other Aquatic Life Research Center, EthiopiaIn developing countries, mass production of Daphnia magna, used as a food in freshwater aquaculture, is a challenge. A fifteen-day laboratory experiment was conducted to examine the population growth and reproductive parameters for D. magna reared in green water fertilised... -
Assessment of compliance level with the International Labor Organization child labour utilization regulation: Evidence from cassava farmers in Osogbo ADP Zone, Osun State, Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Lateef Olatunbosun Jimoh --- Osun State University, Nigeria Timothy Olusola Agboola --- Osun State University, Nigeria Olaide Kamila Akintunde --- Osun State University, Nigeria Kaothar Modupe Idris-Adeniyi --- Osun State University, Nigeria Francis Oluwadamilare Ajayi --- Osun State University, Nigeria Festus Adelekan Oyeniyi --- Osun State University, NigeriaInvestigating the compliance level of International Labor Organization (ILO) regulation on child labour use among cassava farming households in Osogbo ADP Zone, Osun State, Nigeria, the study determines the factors influencing child labour usage among cassava farmers in the study... -
Veld condition assessments are unrepresentative at the edges of rotational burn management blocks where grass community composition is atypical
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Anne E Goodenough --- School of Education and Science, University of Gloucestershire, UK William S Carpenter --- School of Education and Science, University of Gloucestershire, UK Hannah Toms --- School of Education and Science, University of Gloucestershire, UK Benjamin A Bayliss --- School of Education and Science, University of Gloucestershire, UK Chloe J Cookes --- School of Education and Science, University of Gloucestershire, UK Lena Buerger --- School of Education and Science, University of Gloucestershire, UK Chloe L Cogdell --- School of Education and Science, University of Gloucestershire, UK Sara L Evans --- School of Education and Science, University of Gloucestershire, UK Tom Lancashire --- School of Education and Science, University of Gloucestershire, UK Fern D Kenyon-Hamp --- School of Education and Science, University of Gloucestershire, UK Ruari J MacGregor --- School of Education and Science, University of Gloucestershire, UK Sarah A Morshead --- School of Education and Science, University of Gloucestershire, UK Candace M Pattison --- School of Education and Science, University of Gloucestershire, UK Eli Shrubb --- School of Education and Science, University of Gloucestershire, UK Hannah D Upshall --- School of Education and Science, University of Gloucestershire, UK Charlene R Watts --- School of Education and Science, University of Gloucestershire, UK Lynne MacTavish --- Mankwe Wildlife Reserve, South Africa Melissa Dawson --- Mankwe Wildlife Reserve, South Africa Adam G Hart --- School of Education and Science, University of Gloucestershire, UKFenced reserves provide benefits for wildlife but are vulnerable to overgrazing. Accurate veld condition assessments are essential to inform stocking density, translocation/culling interventions and burn management decisions. Here, for the first time, we test whether atypical changes in the grass... -
Heavy metal contamination in mangrove ecosystems: assessing bioaccumulation in crabs and snails along the Bayelsa Coast, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HO Adamu --- University of Bremen, Germany JI Izegaegbe --- University of Eastern Finland, Finland RO Hussaini --- Ambrose Alli University, Nigeria EM Odoya --- Ambrose Alli University, Nigeria HO Adamu --- Federal Ministry of Water Resources, NigeriaRapid human population growth and industrial activities along coastal areas have intensified anthropogenic contamination in water, sediment and edible fauna, posing public health risks. Mangrove ecosystems act as pollutant sinks, increasing the likelihood of heavy metal accumulation in aquatic organisms... -
High population differentiation of Okpe River Talbotiella gentii at Anum Boso, Ghana, uncovered by RAPD
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Daniel Dompreh --- Kwame Nkrumah University of Science and Technology, Ghana Adam Price --- University of Aberdeen, UK Michael David Swaine --- University of Aberdeen, UKTalbotiella gentii Hutch. & Greenway is an endemic, severely threatened and fragmented species in Ghana. Though it is a highly valued non-timber product, it faces the threat of extinction from wildfire, and exploitation for charcoal and fuelwood, agriculture and building... -
Sand knobwood Zanthoxylum leprieurii as a keystone resource for birds in Nigeria: insights from observational counts and proximate analysis
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adewale G Awoyemi --- Forest Center, International Institute of Tropical Agriculture, Nigeria Ademola D Ajayi --- Forest Center, International Institute of Tropical Agriculture, Nigeria Olukunle E Olasupo --- Forest Center, International Institute of Tropical Agriculture, Nigeria Olufemi P Olubodun --- Forest Center, International Institute of Tropical Agriculture, Nigeria Taiwo Adams --- Forest Center, International Institute of Tropical Agriculture, Nigeria Mary Oyegbami --- Forest Center, International Institute of Tropical Agriculture, Nigeria Omobamidele A Awoyemi --- Forest Center, International Institute of Tropical Agriculture, NigeriaThis study investigated the importance of sand knobwood Zanthoxylum leprieurii (family Rutaceae) fruits as a food source for birds in the Tree Heritage Park, Ibadan, Nigeria. We conducted focal observations over three years (2018, 2019, and 2024) during peak fruiting... -
Updates on population status of vultures in Nazinga Game Ranch, Burkina Faso
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Clément Daboné --- Animal Biology and Ecology, University Centre of Tenkodogo/Thomas Sankara University, Burkina Faso Idrissa Ouédraogo --- Laboratory of Animal Biology and Ecology, Joseph Ki-Zerbo University, Burkina Faso Idrissa Ouédraogo --- Laboratory of Animal Biology and Ecology, Joseph Ki-Zerbo University, Burkina Faso Adama Ouéda --- Laboratory of Animal Biology and Ecology, Joseph Ki-Zerbo University, Burkina Faso Wendengoudi Guenda --- Laboratory of Animal Biology and Ecology, Joseph Ki-Zerbo University, Burkina Faso Peter DM Weesie --- Integrated Research on Energy, Environment and Society, University of Groningen, The NetherlandsIn the early 2000s, the ornithological community was alerted to the vulture population decline in West Africa. Since then, the situation of vultures in this area has not been updated, specifically in Burkina Faso’s protected areas. To find out more,... -
Marine–estuarine connectivity, salinity and sedimentation in the St Lucia system, South Africa, following reconnection with the uMfolozi River
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RH Taylor --- Independent Hydro-Ecologist, South Africa AK Whitfield --- South African Institute for Aquatic Biodiversity, South Africa CE Fox --- Ezemvelo KwaZulu-Natal Wildlife, St Lucia Estuary, South Africa JB Adams --- Botany Department and Institute for Coastal & Marine Research, Nelson Mandela University, South AfricaThis study reviews selected physical and biotic responses of the St Lucia estuarine system to the recently implemented management approach of re-establishing the connection between the uMfolozi River and the St Lucia Estuary. This connection was severed in the 1950s...
