Browsing Research Articles (Botany and Zoology) by Title
Now showing items 150-169 of 337
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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, ... -
Hemispheric asymmetries in biodiversity : a serious matter of ecology
(PLoS One, 2004-11)Penguins have been receiving a lot of bad press lately. They are considered somehow counter, spare, strange. Unlike most plant and animal groups, they do not show a peak of species richness towards the equator and a ... -
High resolution temperature data for ecological research and management on the Southern Ocean Islands
(Nature Research, 2018-09-04)Southern Ocean Islands are globally significant conservation areas. Predicting how their terrestrial ecosystems will respond to current and forecast climate change is essential for their management and requires high-quality ... -
Hitting the right target : taxonomic challenges for, and of, plant invasions
(Oxford University Press, 2013)This paper explores how a lack of taxonomic expertise, and by implication a dearth of taxonomic products such as identification tools, has hindered progress in understanding and managing biological invasions. It also ... -
Hooker’s or warty barberry? physiological background analysis for choosing the right one into ornamental plantations endangered by drought
(Mendel University Press, 2017)Barberries as undemanding shrubs with high aesthetic value are often planted in city parks and street greeneries. However, severe urban environment combined with climate change puts pressure on these plants in terms of ... -
Host-Plant Species Conservatism and Ecology of a Parasitoid Fig Wasp Genus (Chalcidoidea; Sycoryctinae; Arachonia)
(PLOS, 2012-09-10)Parasitoid diversity in terrestrial ecosystems is enormous. However, ecological processes underpinning their evolutionary diversification in association with other trophic groups are still unclear. Specialisation and ... -
Hou metaalbesoedeling ’n bedreiging in vir die voortbestaan van seesterre in Valsbaai, Suid-Afrika?
(AOSIS Publishing, 2013)Verstedeliking en industriële ontwikkeling rondom Valsbaai, Suid-Afrika, neem toe en kommer het ontstaan oor die uitwerking van besoedelende stowwe op die tussengetydiere soos seesterre. Die oogmerke van die huidige ... -
House mouse colonization patterns on the sub-Antarctic Kerguelen Archipelago suggest singular primary invasions and resilience against re-invasion
(BioMed Central, 2010-10)Background: Starting from Western Europe, the house mouse (Mus musculus domesticus) has spread across the globe in historic times. However, most oceanic islands were colonized by mice only within the past 300 years. This ... -
How repeatable is the Environmental Impact Classification of Alien Taxa (EICAT)? Comparing independent global impact assessments of amphibians
(Wiley Open Access, 2017)The magnitude of impacts some alien species cause to native environments makes them targets for regulation and management. However, which species to target is not always clear, and comparisons of a wide variety of impacts ... -
Human usage in the native range may determine future genetic structure of an invasion : insights from Acacia pycnantha
(BioMed Central, 2013-10)Background: The influence of introduction history and post-introduction dynamics on genetic diversity and structure has been a major research focus in invasion biology. However, genetic diversity and structure in the invasive ... -
Identifying the factors that determine the severity and type of alien bird impacts
(Wiley, 2018)Aim: To identify traits related to the severity and type of environmental impacts generated by alien bird species, in order to improve our ability to predict which species may have the most damaging impacts. Location: ... -
Impact assessment with different scoring tools : how well do alien amphibian assessments match?
(Pensoft Publishers, 2017-01-27)Classification of alien species’ impacts can aid policy making through evidence based listing and management recommendations. We highlight differences and a number of potential difficulties with two scoring tools, the ... -
Impacts of climate change on the global invasion potential of the African clawed frog xenopus laevis
(Public Library of Science, 2016-06-01)By altering or eliminating delicate ecological relationships, non-indigenous species are considered a major threat to biodiversity, as well as a driver of environmental change. Global climate change affects ecosystems and ... -
Impacts of invasive plants on animal diversity in South Africa : a synthesis
(AOSIS Publishing, 2017)Background: Increasing numbers of invasive alien plant (IAP) species are establishing around the globe and can have negative effects on resident animal species function and diversity. These impacts depend on a variety of ... -
Implementing invasive species management in an adaptive management framework
(AOSIS, 2011)Adaptive management theory has attracted substantial interest in recent years, in natural resource management in general and also for invasive alien species management. However, whilst many theoretical and conceptual ... -
The implication of chemotypic variation on the anti-oxidant and anti-cancer activities of sutherlandia frutescens (L.) R.Br. (Fabaceae) from different geographic locations
(MDPI, 2020)Extracts of Sutherlandia frutescens (cancer bush) exhibit considerable qualitative and quantitative chemical variability depending on their natural wild origins. The purpose of this study was thus to determine bioactivity ... -
Implications of summer breeding frogs from Langebaanweg, South Africa : regional climate evolution at 5.1 mya
(Academy of Science of South Africa, 2016-09-28)No direct palaeoclimatic proxies have been available to indicate the seasonality or amount of rainfall on the west coast of southern Africa during the Early Pliocene. The Benguela Upwelling System (BUS) is today one of ... -
Implications of summer breeding frogs from Langebaanweg, South Africa : regional climate evolution at 5.1 mya
(Academy of Science of South Africa, 2016-05)No direct palaeoclimatic proxies have been available to indicate the seasonality or amount of rainfall on the west coast of southern Africa during the Early Pliocene. The Benguela Upwelling System (BUS) is today one of the ...
