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Observations on the linefish resources of Namibia, 1990?2000, with special reference to West Coast steenbras and silver kob
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. A. Holtzhausen C. H. Kirchner S. F. VogesThe Namibian linefishery is a multisector fishery, with recreational and commercial sectors targeting overlapping species. Prior to 1990, catch data were recorded for the boat sector, but little research was done on the population dynamics of any of the species... -
A review of orange roughy Hoplostethus atlanticus fisheries, estimation methods, biology and stock structure
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: T. A. BranchOrange roughy Hoplostethus atlanticus are unusual fish. They form dense aggregations that have fuelled lucrative fisheries at great depths (600–1 400 m), especially off Namibia, New Zealand and Australia. They are thought to be very long-lived (>100 years, maturity at... -
Genetic and morphological variation of the lanternfish Lampanyctodes hectoris (Myctophiformes: Myctophidae) off southern Africa
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: W. K. Florence P. A. Hulley B. A. Stewart M. J. GibbonsGenetic and morphological variation within the southern African population of Lampanyctodes hectoris was analysed. A total of 15 enzymes, encoding 22 isozyme loci, was examined (n = 327); seven were polymorphic. The percentage of polymorphic loci ranged from 13.6 to... -
Catchments as conservation units for riverine biodiversity
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MJ WishartThe geological structure and longitudinal nature of river systems provide a possible barrier to the dispersal of lotic organisms. This has the potential to drive evolutionary processes such as genetic differentiation and subsequent allopatric speciation. In the conservation of lotic... -
Conservation genetics of the vulnerable Treur River barb, Barbus treurensis
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GD Engelbrecht PFS Mulder SK MpherwaneAt present there are only two populations of the vulnerable Treur River barb, Barbus treurensis, in existence; a founder population in the upper Blyde River and a translocated population in the Treur River where the species became extinct. The translocated... -
Extreme levels of intra-specific divergence among Cape Peninsula populations of the Cape galaxias, Galaxias zebratus Castelnau 1861, reveals a possible species complex
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Marcus Wishart Jane Hughes Barbara Stewart Dean ImpsonThe Cape galaxias, Galaxias zebratus, is part of the paleao-endemic fauna characteristic of the south-western Cape, South Africa, and is the only galaxiid found in continental Africa. A 284-bp fragment of the cytochrome b region of the mtDNA was sequenced... -
Bayesian analysis of allozyme markers indicates a single genetic population of kingklip Genypterus capensis off South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: WS Grant RW LeslieKingklip Genypterus capensis inhabit deep continental shelf and slope waters off southern Africa and are now largely harvested as a bycatch in trawl and longline fisheries for Cape hakes Merluccius spp. Regional differences in growth, vertebral count and otolith morphology... -
Observations of individual humpback whales utilising multiple migratory destinations in the south-western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PJ Ersts --- Center for Biodiversity and Conservation, USA C Pomilla --- Sackler Institute for Comparative Genomics, USA J Kiszka --- Observatoire des Mammifères Marins, France S Cerchio --- Sackler Institute for Comparative Genomics, USA HC Rosenbaum --- Center for Biodiversity and Conservation, USA M Vély --- , France Y Razafindrakoto --- Madagascar Country Program, Madagascar JA Loo --- Sackler Institute for Comparative Genomics, USA MS Leslie --- Sackler Institute for Comparative Genomics, USA M Avolio --- Barnard College, USAMovements of humpback whales Megaptera novaeangliae among breeding regions within the southwestern Indian Ocean are poorly understood. Understanding the relationships among breeding regions is critical for effective conservation and management strategies. Through systematic comparisons of molecular genotypes and both systematic... -
Chromosomal population structuring in carangids (Perciformes) between the north-eastern and south-eastern coasts of Brazil
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: IV Accioly --- Departamento de Biologia Celular e Genética, Centro de Biociências, Brasil LAC Bertollo --- Departamento de Genética e Evolução, Brasil GWWF Costa --- Departamento de Biologia Celular e Genética, Centro de Biociências, Brasil UP Jacobina --- Departamento de Biologia Celular e Genética, Centro de Biociências, Brasil WF Molina --- Departamento de Biologia Celular e Genética, Centro de Biociências, BrasilThe family Carangidae comprises 151 species, of which only 19 have been so far karyotyped, including a few representatives from the Western Atlantic Ocean. This study compared the cytogenetic features of three Atlantic carangids, Chloroscombrus chrysurus, Trachinotus goodei and T... -
Significant population genetic structuring of the holoplanktic scyphozoan Pelagia noctiluca in the Atlantic Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BJ Miller --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa S von der Heyden --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa MJ Gibbons --- Department of Biodiversity and Conservation Biology, South AfricaPelagia noctiluca is thought to have a global distribution, yet our understanding of genetic connectivity across the range of this problem animal is poor. Here, we investigate the genetic structure of populations off southern Africa using mitochondrial COI and nuclear... -
Genetic characterisation of oyster populations along the north-eastern coast of Tunisia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Dridi MS Romdhane S Heurtebise ElM Cafsi P Boudry S LapègueThe taxonomy of oysters has been traditionally based on characteristics of the shell. More recently, the analysis of protein and DNA polymorphism has provided a means to overcome difficulties in distinguishing the different species of oysters based solely on shell... -
The influence of tree improvement and cultural practices on the productivity of Eucalyptus plantations in temperate South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: GR Boreham RN PallettThe South African forestry industry is dependent on a resource of fast-growing, low-cost wood to remain globally competitive. Land availability and the legislative requirements for afforestation in South Africa are limiting factors for future growth and therefore increasing the productivity... -
The genetics of obesity: the role of the melanocortin 4 receptor
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: MG Logan --- Department of Immunology, South Africa MS Pepper --- Department of Immunology, South AfricaObesity, which is described clinically by a body mass index (BMI) of > 30 kg/m2 is increasing at an alarming rate, and is recognised as a chronic disease by the World Health Organization (WHO). This epidemic decreases life expectancy, and... -
Anaesthetic genetics and genomics
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: E Welch --- ,Genetic variations have always been implicated in interindividual reactions to various pharmaceutical agents. Some common genetically determined anaesthetic conditions, such as malignant hyperthermia, “scoline apnoea”, “halothane hepatitis” and porphyria, are fairly well described, and the genetic differences in enzyme, receptor... -
Karyology of the redfin minnows, genus Pseudobarbus Smith, 1841 (Teleostei: Cyprinidae): one of the evolutionarily tetraploid lineages of South African barbines
Item type: Journal Article • Journal: African Zoology • Authors: D. Naran --- Department of Ichthyology and Fisheries Sciences, South Africa P. H. Skelton --- South African Institute for Aquatic Biodiversity, South Africa M. H. Villet --- Department of Zoology and Entomology, South AfricaThe karyotypes of six species of Pseudobarbus Smith, 1841, namely P. afer (Peters, 1864), P. asper (Boulenger, 1911), P. burchelli Smith, 1841, P. burgi (Boulenger, 1911), P. phlegethon (Barnard, 1938) and P. tenuis (Barnard, 1938), were examined by conventional Giemsa... -
Cryptic lineages of little free-tailed bats, Chaerephon pumilus (Chiroptera: Molossidae) from southern Africa and the western Indian Ocean islands
Item type: Journal Article • Journal: African Zoology • Authors: Peter John Taylor --- Durban Natural Science Museum, South Africa Jennifer Lamb --- University of KwaZulu-Natal, South Africa Devendran Reddy --- University of KwaZulu-Natal, South Africa Theshnie Naidoo --- University of KwaZulu-Natal, South Africa Fanja Ratrimomanarivo --- Vahatra, Madagascar Steven M. Goodman --- Vahatra, MadagascarWe investigate mitochondrial DNA and craniometric variation in southern African and Malagasy populations of the small and morphologically variable, house-roosting molossid bat, Chaerephon pumilus in relation to Malagasy populations of the related, smaller-sized species, C. leucogaster. Both cytochrome b and... -
Microsatellite DNA analyses reveal population subdivisions among the recently introduced Nile perch (Lates spp.) in Lake Victoria
Item type: Journal Article • Journal: African Zoology • Authors: Matthew T. Mwanja --- ARDC–Kajjansi, Uganda Vincent B. Muwanika --- Department of Environmental Management, South Africa Charles Masembe --- Biology Department, Uganda Wilson W. Mwanja --- Department of Fisheries Resources, Uganda Silvester Nyakaana --- Biology Department, UgandaNile perch (Lates spp.) was introduced into Lake Victoria only five decades ago but is now well established and distributed throughout the lake. Given the extensive size of the lake, there is a possibility of isolation by distance that can... -
Microsatellite markers for population genetic studies of the rock firefinch, Lagonosticta sanguinodorsalis
Item type: Journal Article • Journal: African Zoology • Authors: Jacinta Abalaka --- Department of Genetics, South Africa Bengt Hansson --- Department of Biology, SwedenWe identified the first set of microsatellites for use in the rock firefinch (Lagonosticta sanguinodorsalis). First, we tested existing passerine microsatellite loci for cross-species amplification success in a small sample of rock firefinches and identified 10 loci that were seemingly... -
Molecular species identification and population genetics of chondrichthyans in South Africa: current challenges, priorities and progress
Item type: Journal Article • Journal: African Zoology • Authors: Aletta E Bester-van der Merwe --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa Katie S Gledhill --- South African Shark Conservancy, South AfricaMolecular genetic techniques, such as DNA barcoding and genotyping, are increasingly being used to assist with the conservation and management of chondrichthyans worldwide. Southern Africa is a shark biodiversity hotspot, with a large number of endemic species. According to the... -
Genetic variation in three> Chersina angulata> (angulate tortoise) populations along the west coast of South Africa>
Item type: Journal Article • Journal: African Zoology • Authors: Mosa G.A. Lesia --- Department of Zoology, South Africa Margaretha D. Hofmeyr --- Department of Zoology, South Africa Maria E. D΄Amato --- Department of Zoology, South AfricaWe investigated genetic variation within and among three populations of Chersina angulata; two in the southwestern Cape (West Coast National Park and Dassen Island) of South Africa and Kleinzee in the northwestern parts of the species’ range. Mitochondrial DNA sequences... -
Genotype-based personalised nutrition for obesity prevention and treatment: are we there yet?
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: M. Senekal --- Associate Professor; Head: Division of Human Nutrition; Department of Human Biology,Interactions between genotype and dietary intake include genetic moderation of the effect of dietary intake on disease development (nutrigenetics). Research on nutrigenetics has focused mainly on single-nucleotide polymorphisms (SNPs) and supports the notion that interactions between genes, diet, other lifestyle... -
Strengthening HIV surveillance: measurements to track the epidemic in real time
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Usangiphile E Buthelezi --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, South Africa Candace L Davidson --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, South Africa Ayesha BM Kharsany --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, South AfricaSurveillance for HIV as a public health initiative requires timely, detailed and robust data to systematically understand burden of infection, transmission patterns, direct prevention efforts, guide funding, identify new infections and predict future trends in the epidemic. The methods for... -
Mitochondrial DNA sequence variation in Hippopotamus amphibius from Kruger National Park, Republic of South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Richard Beckwitt --- Department of Biology, USA Jessica Barbagallo --- Department of Biology, USA Nickolas Breen --- Department of Biology, USA Julia Hettinger --- Department of Biology, USA Angelo Liquori --- Department of Biology, USA Cesar Sanchez --- Department of Biology, USA Nathalia Vieira --- Department of Biology, USA William Barklow --- Department of Biology, USAPopulations of Hippopotamus amphibius have declined throughout Africa in recent years, and are expected to decline further. An understanding of the population genetics of individual populations of hippos is necessary for effective management. To that end, we sequenced a portion... -
Determining the correct identity of South African Marthasterias (Echinodermata: Asteroidea)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AG Wright --- Department of Biological Sciences, South Africa R Pérez-Portela --- Center for Advanced Studies of Blanes (CEAB-CSIC), USA CL Griffiths --- Department of Biological Sciences, South AfricaMarthasterias glacialis are found in the cool-temperate waters of the north-eastern Atlantic Ocean, in the subtropical waters of the Mediterranean Sea and along the south-western tip of Africa. The South African Marthasterias population includes two morphotypes, a smooth, spineless rarispina... -
Characterisation of microsatellite markers in the Spotted Sand Lizard (Pedioplanis lineoocellata) shows low levels of inbreeding and moderate genetic diversity on a small spatial scale
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Krystal A. Tolley --- , , South Africa Ryan J. Daniels --- , , South Africa Kevin A. Feldheim --- , , USAPopulation genetic methods can be useful for understanding spatial genetic patterns, gene flow and diversity. While genetic markers such as gene sequences are useful for understanding broad scale phylogeographic patterns, microsatellite markers allow for inferences within species and on smaller... -
The phylogenetic position of Ethiopia's sole endemic and biogeographically enigmatic cordylid lizard, Cordylus rivae (Squamata: Cordylidae), and a discussion of its conservation status
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Stuart V. Nielsen --- , , USA Timothy J. Colston --- , , USAAlthough the genus Cordylus has received much recent attention, previous studies have failed to include all known species, particularly for biogeographically important taxa. Recent fieldwork targeted a previously known population of Cordylus rivae from the southeast of Ethiopia's Oromia region... -
Analysis of genetic diversity in Rose’s mountain toadlet (Capensibufo rosei) using novel microsatellite markers
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jessica M. da Silva --- , South Africa Kevin A. Feldheim --- , USA Ryan J. Daniels --- , South Africa Shelley Edwards --- , South Africa Krystal A. Tolley --- , South AfricaOn the Cape Peninsula, Capensibufo rosei is known from only two isolated breeding populations within Table Mountain National Park. Because of its declining state, there is an urgent need to understand the genetic diversity, population structure and patterns of movement... -
Genetic stock structure of white steenbras Lithognathus lithognathus (Cuvier, 1829), an overexploited fishery species in South African waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RH Bennett --- South African Institute for Aquatic Biodiversity, South Africa K Reid --- Molecular Ecology and Evolution Programme, Department of Genetics, South Africa G Gouws --- South African Institute for Aquatic Biodiversity, South Africa P Bloomer --- Molecular Ecology and Evolution Programme, Department of Genetics, South Africa PD Cowley --- South African Institute for Aquatic Biodiversity, South AfricaWhite steenbras Lithognathus lithognathus (Teleostei: Sparidae) is an overexploited marine fish species endemic to South Africa. Overexploitation in recreational, subsistence and commercial fisheries has resulted in stock collapse and the need for improved management of the species. Adults are thought... -
Phylogeny of the Sepia officinalis species complex in the eastern Atlantic extends the known distribution of Sepia vermiculata across the Benguela upwelling region
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AJE Healey --- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Wales NJ McKeown --- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Wales WM Potts --- Department of Ichthyology and Fisheries Science, South Africa CL de Beer --- Department of Ichthyology and Fisheries Science, South Africa W Sauer --- Department of Ichthyology and Fisheries Science, South Africa PW Shaw --- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, WalesAccurate species identification and biogeographic characterisation are fundamental for appropriate management of expanding cephalopod fisheries. This study addresses this topic within the common cuttlefish Sepia officinalis species complex (S. officinalis, S. hierredda and S. vermiculata), with an emphasis on occurrence... -
Systematic reinstatement of Schilbe depressirostris (Peters, 1852), based on differences in DNA barcoding and morphology, from Schilbe intermedius Rüppell, 1832 (Siluriformes, Schilbeidae)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HF van der Bank --- African Centre for DNA Barcoding, Kingsway Campus, South Africa BS Bezeng --- African Centre for DNA Barcoding, Kingsway Campus, South Africa PH Skelton --- South African Institute for Aquatic Biodiversity, South AfricaClimate change poses an unprecedented threat to biodiversity worldwide. Consequently, unrecognised taxa may not receive adequate conservation attention to survive. We used molecular and morphological data to address the challenge of species delimitation within the genus Schilbe. The presence or... -
Molecular research on the systematically challenging smoothhound shark genus Mustelus: a synthesis of the past 30 years
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SN Maduna --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa AE Bester-van der Merwe --- Molecular Breeding and Biodiversity Group, Department of Genetics, South AfricaThe species-rich genus Mustelus (smoothhounds) of the shark family Triakidae is one of the most bio-economically important groups of elasmobranchs in the world’s oceans. Despite the commercial value of Mustelus, the systematics of the group remains largely unresolved and there... -
Cryptic diversity in the common flap-necked chameleon Chamaeleo dilepis in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Devon C Main --- Centre for Ecological Genomics and Wildlife Conservation, South Africa Bettine Jansen van Vuuren --- Centre for Ecological Genomics and Wildlife Conservation, South Africa Krystal A Tolley --- Centre for Ecological Genomics and Wildlife Conservation, South AfricaThe spatial genetic structure of a species, and whether distinct genetic lineages are present, is strongly influenced by their biology and habitat requirements. Given habitat specificity and low vagility, many herpetofaunal species are reservoirs for high levels of cryptic diversity;... -
Genetic diversity and population connectivity of the sea urchin Tripneustes gratilla along the South African coast
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Brink --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa R Dale Kuys --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa C Rhode --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa BM Macey --- Branch: Fisheries Management, Department of Agriculture, South Africa KW Christison --- Branch: Fisheries Management, Department of Agriculture, South Africa R Roodt-Wilding --- Molecular Breeding and Biodiversity Group, Department of Genetics, South AfricaThe collector sea urchin Tripneustes gratilla has been identified as a species with potential for aquaculture production in South Africa. The species’ roe is considered a culinary delicacy in Asia and Europe. However, T. gratilla remains genetically uncharacterised in South... -
Genetic variability of the Lessepsian migrant mussel Brachidontes pharaonis (Bivalvia: Mytilidae) in Tunisia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Antit --- UR11ES12 Biologie de la Reproduction et du Développement animal, Faculté des Sciences de Tunis, Tunisia N Amor --- KSU Mammals Research Chair, Department of Zoology, Saudi Arabia J Urra --- Oceanographic Center of Málaga–Spanish Institute of Oceanography, Spain AN Alagaili --- KSU Mammals Research Chair, Department of Zoology, Saudi Arabia S Farjallah --- Unité de Recherche de Biologie Intégrative et Ecologie Évolutive et Fonctionnelle des Milieux aquatiques, Faculté des Sciences Tunis, TunisiaThe present study used two mitochondrial markers (16S rRNA and COI) to assess the genetic diversity of a newly founded Lessepsian migrant mussel, Brachidontes pharaonis, in Tunisian waters. The species appears to be restricted to only one population in Rades... -
High genetic diversity of Fusarium circinatum associated with the first outbreak of pitch canker on Pinus patula in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Felix F Fru --- Department of Plant and Soil Sciences, Forestry and Agricultural Biotechnology Institute (FABI), South Africa Emma T Steenkamp --- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), South Africa Michael J Wingfield --- Department of Plant and Soil Sciences, Forestry and Agricultural Biotechnology Institute (FABI), South Africa Jolanda Roux --- Department of Plant and Soil Sciences, Forestry and Agricultural Biotechnology Institute (FABI), South AfricaThe disease known as pitch canker results from infection of Pinus species by the fungus Fusarium circinatum. This fungus also causes a serious root disease of Pinus seedlings and cuttings in forestry nurseries. Pinus radiata and P. patula are especially... -
Genetic structure associated with habitat diversification supports the independent evolution of ecomorphs in Bradypodion pumilum
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Krystal A Tolley --- , South Africa Kevin P Hopkins --- , South Africa Jessica M da Silva --- , South AfricaThere are notable examples of repeated evolution of ecomorphs within groups of closely related species, these are typically viewed as remarkable cases of natural selection. In most cases, directional selection for certain phenotypic traits under specific (and differing) environmental conditions... -
A DNA barcoding study of seven cichlid species from southern Africa reveals their phylogenetic relationships
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FH van der Bank --- African Centre for DNA Barcoding, South AfricaThis study of three Namibian fish species (two endemic Thoracochromis and Tilapia guinasana) and Pseudocrenilabrus philander reveals their monophyly. These species (and Sandelia capensis) have never been DNA barcoded and their phylogenetic relationships with two Tilapia species is shown. Average... -
High genetic diversity and limited spatial structure in an endangered, endemic South African sparid, the red steenbras Petrus rupestris
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Gouws --- , South Africa SE Kerwath --- , South Africa WM Potts --- , South Africa NC James --- , South Africa NG Vine --- , South Africa PD Cowley --- , South AfricaThe red steenbras Petrus rupestris is endemic to South Africa, occurring from False Bay in the Western Cape Province to St Lucia in the province of KwaZulu-Natal. This species, the largest member of the family Sparidae, has undergone a substantial... -
Genetic diversity of the Ankober Serin (Crithagra ankoberensis) at Simien Mountains National Park and Guassa Community Conservation Area, Ethiopia
Item type: Journal Article • Journal: African Zoology • Authors: Abebayehu Dessalegn --- , Ethiopia Mundanthra Balakrishnan --- , Ethiopia Till Töpfer --- , Germany Lars Podsiadlowski --- , Germany Tilaye Wube --- , EthiopiaThe genetic diversity of the Ethiopian endemic Ankober Serin Crithagra ankoberensis was studied in two populations at Simien Mountains National Park and Guassa Community Conservation Area using five microsatellite markers. Blood samples were taken from 16 and 14 birds, respectively... -
Karyotypes of two species of Malagasy ground gecko (Paroedura: Gekkonidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Hana Main --- University of Minnesota, USA DanielP. Scantlebury --- University of Rochester, USA David Zarkower --- University of Minnesota, USA Tony Gamble --- University of Minnesota, USAThe karyotypes of Malagasy geckos are poorly known. Herein, we describe the karyotypes of two Malagasy gecko species, Paroedura picta and an undescribed or currently unrecognised Paroedura species. These are the first karyotypes described for the genus Paroedura. Each species... -
Untangling the complex: molecular patterns in Trachylepis variegata and T. punctulata (Reptilia: Scincidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DanielM. Portik --- Villanova University, USA AaronM. Bauer --- Villanova University, USAThe Mabuya [=Trachylepis] lacertiformis complex is comprised of four species with a high degree of morphological overlap and a convoluted taxonomic history. Of these four species, T. punctulata and T. variegata possess the broadest ranges, together covering much of southern... -
Temporal changes in allelic variation among Cape Dwarf Chameleons, Bradypodion pumilum, inhabiting a transformed, semi-urban wetland
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Eric M. Katz --- , , South Africa Krystal A. Tolley --- , , South Africa Jacqueline M. Bishop --- , , South AfricaThe Cape Dwarf Chameleon, Bradypodion pumilum, is threatened by extensive habitat loss and transformation in the Western Cape Province of South Africa. As a result, the species exists as a collection of populations inhabiting an increasingly fragmented landscape within a... -
Genetic variability of Tachigali vulgaris trees based on seed morphophysiological traits
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Noemi Vianna Martins Leão --- , Brazil Sérgio Heitor Sousa Felipe --- Universidade Estadual do Maranhão, Brazil Ricardo Gallo --- Universidade Federal Rural de Pernambuco, Brazil Elizabeth Santos Cordeiro Shimizu --- , BrazilTachigali vulgaris is a tree with high potential for energy purposes in Brazil. However, there is little information about genetic variability that can be applied to plant breeding. Here, we quantified genetic variability based on biometric and emergence traits of... -
Phylogeographic structuring in a widespread southern African grass snake (Psammophiinae: Psammophylax rhombeatus)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: C. Keates --- Rhodes University, South Africa W. Conradie --- Port Elizabeth Museum (Bayworld), South Africa S. Edwards --- Rhodes University, South AfricaThe structural and environmental heterogeneity within southern Africa has given rise to many morphological forms of Psammophylax rhombeatus distributed throughout the country, with previous studies neglecting the associated molecular significance of these forms. The species’ widespread, generalist ecology coupled with... -
Quantitative genetics and breeding strategies in hybrid populations of Pinus patula × Pinus tecunumanii
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Luis Ibarra --- North Carolina State University, USA Gary Hodge --- North Carolina State University, USA Juan José Acosta --- North Carolina State University, USAForestry companies SAFCOL and Sappi conducted a study in South Africa to examine genetic variation and select improved material in full-sib hybrid families of Pinus patula × Pinus tecunumanii. The results from the study on clonal and seedling hybrid populations... -
Evolution, population structure and morphology of the African Black Duck Anas sparsa and Yellow-billed Duck A. undulata
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Philip Lavretsky --- University of Texas at El Paso, United States Ramsey Russell --- , United States Sara Gonzalez --- University of Texas at El Paso, United States Vergie M Musni --- University of Texas at El Paso, United States Alexis Díaz --- Centro de Ornitología y Biodiversidad (CORBIDI), Peru Joshua I Brown --- University of Texas at El Paso, United StatesBiological conservation requires a fundamental understanding of evolutionary history and established contemporary population genetics. Here, we sequenced mitochondrial DNA (mtDNA) and thousands of nuclear loci across individuals of the African Black Duck Anas sparsa and Yellow-billed Duck A. undulata to... -
A new Rain Frog (Anura: Brevicipitidae; Breviceps) from the KwaZulu-Natal Midlands, South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: LH du Preez --- North-West University, South Africa EC Netherlands --- North-West University, South Africa LR Minter --- North-West University, South AfricaBreviceps, an African genus of fossorial frogs, comprises 20 species most of which occur in South Africa. In this study we describe a new species that differs morphologically from its closest congener Breviceps verrucosus, in the position of the mouth...