Browsing Research Articles (Botany and Zoology) by Title
Now showing items 289-297 of 297
-
Vegetation of the coastal fynbos and rocky headlands south of George, South Africa
(AOSIS, 2000)ommunity structure and composition of the coastal fynbos and rocky headland plant communities south of George, southern Cape, were studied. Vegetation was analysed using standard sampling procedures of the floristic-sociological ... -
Vegetation responses to season of fire in an aseasonal, fire-prone fynbos shrubland
(PeerJ, 2017-08-10)Season of fire has marked effects on floristic composition in fire-prone Mediterranean- climate shrublands. In these winter-rainfall systems, summer-autumn fires lead to optimal recruitment of overstorey proteoid shrubs ... -
’n Vergelykende ondersoek na die akkumulering van metale in die mosselkrewel (Tetraclita serrata) en die swartmossel (Choromytilis meridionalis) in Valsbaai, Suid-Afrika
(AOSIS Publishing, 2014)Die ontwikkeling van metodes om die Suid-Afrikaanse kuswaters te moniteer, bied geweldige uitdagings. Kennis en die beskikbaarheid van geskikte spesies wat as biomoniteerders kan optree, kan nuttig wees om inligting te ... -
Vitale bodem als basis voor een duurzaam bodembeheer
(AOSIS Publishing, 2006)In the past decades, soils in South Africa as well as The Netherlands have become increasingly deteriorated as a result of chemical and physical factors. Soil contamination, acidification, desiccation and erosion have ... -
Weakening density dependence from climate change and agricultural intensification triggers pest outbreaks : a 37-year observation of cotton bollworms
(John Wiley & Sons Ltd., 2014-08-12)Understanding drivers of population fluctuation, especially for agricultural pests, is central to the provision of agro-ecosystem services. Here, we examine the role of endogenous density dependence and exogenous factors ... -
Western Zambian sable : are they a geographic extension of the giant sable antelope
(South African Wildlife Management Association, 2010-04)The giant sable (Hippotragus niger variani) is one of Africa's most spectacular large antelope. Years of civil unrest in Angola, a highly localized distribution and Interbreeding with its congener the roan antelope (H. ... -
What's for dinner? Diet and potential trophic impact of an invasive anuran Hoplobatrachus tigerinus on the Andaman archipelago
(PeerJ, 2018-10-02)ENGLISH ABSTRACT: Amphibian invasions have considerable detrimental impacts on recipient ecosystems. However, reliable risk analysis of invasive amphibians still requires research on more non-native amphibian species. An ... -
When homoplasy mimics hybridization : a case study of Cape hakes (Merluccius capensis and M. paradoxus)
(PeerJ, 2016)In the marine environment, an increasing number of studies have documented introgression and hybridization using genetic markers. Hybridization appears to occur preferentially between sister-species, with the probability ... -
Y-Chromosome Variation in Hominids: Intraspecific Variation Is Limited to the Polygamous Chimpanzee
(PLoSONE, 2011-12-27)Background: We have previously demonstrated that the Y-specific ampliconic fertility genes DAZ (deleted in azoospermia) and CDY (chromodomain protein Y) varied with respect to copy number and position among chimpanzees ...
