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Sterile Lanterna camara: fact or theory
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.J. Spies --- Department of Agriculture and Water Supply, Republic of South Africa Henriette du Plessis --- Department of Agriculture and Water Supply, Republic of South AfricaAttempts are being made to legalize the sale of ‘sterile’ Lantana camara varieties in South Africa. Several so-called sterile varieties have been investigated cytogenetically. All these. plants proved to be triploids.(2n = 33). A mechanism exists through which an unexpectedly... -
Comparative use of three methods for estimating the population size of a transferred island endemic: the endangered Seychelles White-eye Zosterops modestus
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Elvina Henriette --- Department of Environment, Seychelles Gérard Rocamora --- , SeychellesPost-release monitoring is an important aspect of species transfers, providing a basis for conservation and management actions to achieve long-term survival of the species. Between 2001 and 2003, the Seychelles White-eye Zosterops modestus became established on Frégate Island following the... -
The influence of psychosocial variables on adolescent suicidal ideation
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Ancel George --- Psychology, South Africa HenrietteS van den Berg --- Psychology, South AfricaBackground: Increased rates of suicide among adolescents aged 15–24 years have led to suicides becoming the third leading cause of death in the Unites States. South African statistics show an equally worrying trend as suicide constitutes 11.5% of the total... -
Evolution of the brain and phylogenetic development of African Bovidae
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: Henriette Oboussier --- Zoological Institute and Zoological Museum, University of Hamburg, West GermanyEvidence drawn from the study of 270 brains of 54 species and subspecies of African Bovidae makes it possible to base phylogenetic relationships on the similarities in the pattern of the cerebral sulci. Comparison of individual sulci of the cerebral... -
A case study review and reasonability assessment of the foreign employment income tax exemption threshold in section 10(1)(o)(ii) of the Income Tax Act
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Kgonthe Sebashe --- , South Africa Henriette Lynette Erasmus --- , South Africa Magdalena Maria Erasmus --- , South AfricaThis research paper, by means of a case study, evaluated whether the foreign employment income tax exemption threshold in section 10(1)(o)(ii) of the Income Tax Act achieved its objectives: first, limiting the impact of the amendment to the exemption in... -
Conservation status and threats to lovebirds: knowledge gaps and research priorities
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sascha Dueker --- University of KwaZulu-Natal, South Africa Sandi Willows-Munro --- University of KwaZulu-Natal, South Africa Michael R Perrin --- University of KwaZulu-Natal, South Africa Yilma D Abebe --- , Ethiopia Nathaniel ND Annorbah --- University of Environment and Sustainable Development, Ghana Esther W Mwangi --- National Museums of Kenya, Kenya Ireene R Madindou --- National Museums of Kenya, Kenya Wondimagegnehu Tekalign --- Wolaita Sodo University, Ethiopia Emiliano Mori --- Istituto di Ricerca sugli Ecosistemi Terrestri, Italy Tiwonge I Mzumara --- , United Kingdom Chris Brown --- , Namibia Ursula Bryson --- , Namibia Henry Ndithia --- National Museums of Kenya, Kenya Tim Dodman --- , United Kingdom Henriette van der Zwan --- North-West University, South Africa Rencia van der Sluis --- North-West University, South Africa Chaona R Phiri --- Manchester Metropolitan University, United Kingdom Abigail Karimanzira --- , Zimbabwe Rowan O Martin --- , United KingdomLovebirds (genus Agapornis of family Psittaculidae) are a group of small, colourful parrot species endemic to sub-Saharan Africa and Madagascar, two-thirds of which are considered to have declining populations. Effective conservation efforts are hampered by a lack of information, particularly...