Browsing Research Articles (Botany and Zoology) by Title
Now showing items 133-152 of 335
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Gastropods alien to South Africa cause severe environmental harm in their global alien ranges across habitats
(Wiley Open Access, 2018)Alien gastropods have caused extensive harm to biodiversity and socioeconomic systems like agriculture and horticulture worldwide. For conservation and management purposes, information on impacts needs to be easily ... -
Genetic analysis shows low levels of hybridization between African wildcats (Felis silvestris lybica) and domestic cats (F. s. catus) in South Africa
(John Wiley & Sons Ltd., 2015)Hybridization between domestic and wild animals is a major concern for biodiversity conservation, and as habitats become increasingly fragmented, conserving biodiversity at all levels, including genetic, becomes increasingly ... -
Genetic and biophysical models help define marine conservation focus areas
(Frontiers Media, 2018-08-06)Ecological and environmental variables play a major role in the genetic structure of marine populations, but how oceanography affects their dispersal and associated connectivity remains far from being understood. To account ... -
Genome sequences of Knoxdaviesia capensis and K. proteae (Fungi: Ascomycota) from Protea trees in South Africa
(BioMed Central, 2016)Two closely related ophiostomatoid fungi, Knoxdaviesia capensis and K. proteae, inhabit the fruiting structures of certain Protea species indigenous to southern Africa. Although K. capensis occurs in several Protea hosts, ... -
The genus Ectonura Cassagnau, 1980 in South Africa (Collembola, Neanuridae, Neanurinae), with a key to South African Neanurinae
(Pensoft, 2011-10)Two new species of Neanurinae (Collembola) are described from the Western Cape, South Africa: Ectonura monochaeta sp. n. and Ectonura barrai sp. n. E. monochaeta sp. n. differs from other species in the genus by its ... -
Geographic variation and plasticity in climate stress resistance among southern African populations of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae)
(Nature Research, 2018-06-29)Traits of thermal sensitivity or performance are typically the focus of species distribution modelling. Among-population trait variation, trait plasticity, population connectedness and the possible climatic covariation ... -
Die geskiktheid van potwurms (Enchytraeidae) en plante om die toksisiteit van olieraffinadery-slik te toets
(AOSIS Publishing, 2016-11-24)Grondbewerking word in die petrochemiese nywerheid in suidelike Afrika gebruik as ’n metode om van besoedelstowwe ontslae te raak. ’n Historiese grondbewerkingsperseel is by ’n petroleumraffinadery geïdentifiseer waar ... -
The ghost of introduction past : spatial and temporal variability in the genetic diversity of invasive smallmouth bass
(Wiley Open Access, 2018)Understanding the demographic history of introduced populations is essential for unravelling their invasive potential and adaptability to a novel environment. To this end, levels of genetic diversity within the native ... -
A global assessment of a large monocot family highlights the need for group-specific analyses of invasiveness
(Oxford University Press on behalf of the Annals of Botany Company, 2016)Significant progress has been made in understanding biological invasions recently, and one of the key findings is that the determinants of naturalization and invasion success vary from group to group. Here, we explore this ... -
The global distribution and drivers of alien bird species richness
(Public Library of Science, 2017-01-12)Alien species are a major component of human-induced environmental change. Variation in the numbers of alien species found in different areas is likely to depend on a combination of anthropogenic and environmental factors, ... -
The global distribution of bamboos : assessing correlates of introduction and invasion
(Oxford University Press on behalf of the Annals of Botany Company, 2016-12-23)There is a long history of species being moved around the world by humans. These introduced species can provide substantial benefits, but they can also have undesirable consequences. We explore the importance of human ... -
Global environmental and socio-economic impacts of selected alien grasses as a basis for ranking threats to South Africa
(Pensoft Publishers, 2018-12-21)ENGLISH ABSTRACT: Decisions to allocate management resources should be underpinned by estimates of the impacts of biological invasions that are comparable across species and locations. For the same reason, it is important ... -
Global realized niche divergence in the African clawed frog Xenopus laevis
(John Wiley & Sons Ltd, 2017)Although of crucial importance for invasion biology and impact assessments of climate change, it remains widely unknown how species cope with and adapt to environmental conditions beyond their currently realized climatic ... -
GlobTherm, a global database on thermal tolerances for aquatic and terrestrial organisms
(Nature Research, 2018-03-13)How climate affects species distributions is a longstanding question receiving renewed interest owing to the need to predict the impacts of global warming on biodiversity. Is climate change forcing species to live near ... -
GloPL, a global data base on pollen limitation of plant reproduction
(Nature Research, 2018-11-20)Plant reproduction relies on transfer of pollen from anthers to stigmas, and the majority of flowering plants depend on biotic or abiotic agents for this transfer. A key metric for characterizing if pollen receipt is ... -
Government urgently needs to provide additional bursaries to train talented teachers
(AOSIS OpenJournals, 2011-12)The world’s population reached 7 billion last month, just as South Africa’s national census was completed. Most of this growth has occurred within the last century – the global population stood at just 2 billion in 1927. ... -
Grasses as invasive plants in South Africa revisited : patterns, pathways and management
(AOSIS Publishing, 2017)Background: In many countries around the world, the most damaging invasive plant species are grasses. However, the status of grass invasions in South Africa has not been documented recently. Objectives: To update Sue ... -
Habitat, food, and small mammal community structure in Namaqualand
(AOSIS, 2006)The effect of habitat differences and food availability on small mammal (rodent and elephant shrew) species richness, diversity, density and biomass was investigated in Namaqualand, South Africa. Species richness in the ... -
Harvesting of forest products and implications for Afrotemperate bird communities in a montane forest of the Eastern Cape, South Africa
(SpringerOpen (part of Springer Nature), 2019-11-16)ENGLISH ABSTRACT: Harvesting of forest products is a widespread driver of disturbance in developing nations, where policies are increasingly aimed at managing natural forests for sustainable use. There is thus need for ... -
Health literacy among older adults is associated with their 10-years cognitive functioning and decline : the Doetinchem Cohort Study
(BioMed Central, 2018-03)Background: Many older adults have low levels of health literacy which affects their ability to participate optimally in healthcare. It is unclear how cognitive decline contributes to health literacy. To study this, ...
