Now showing items 1-10 of 227
Competition and feeding ecology in two sympatric Xenopus species (Anura: Pipidae)
(Creative Commons CC-BY 4.0, 2017)
The widespread African clawed frog (Xenopus laevis) occurs in sympatry with the IUCN Endangered Cape platanna (Xenopus gilli) throughout its entire range in the south-western Cape, South Africa. In order to investigate ...
Wiregrass (Aristida beyrichiana) may limit woody plant encroachment in longleaf pine (Pinus palustris) ecosystems
(University of Notre Dame, 2017)
Wiregrass (Aristida beyrichiana) is a dominant groundcover species that facilitates fire in southeastern U.S.A. pine savannas, thereby limiting woody plant cover and maintaining a herbaceous dominated understory. In ...
Small urban centres as launching sites for plant invasions in natural areas: insights from South Africa
Alien species are often first introduced to urban areas, so it is unsurprising that towns and cities are often hotspots for invasions. However, while large cities are usually the first sites of introduction, small towns ...
Plant invasion science in protected areas: progress and priorities
Invasive alien species are a major problem for managers of protected areas (PAs) worldwide. Until the 1980s biological invasions were widely considered to be largely confined to anthropogenically disturbed sites and the ...
Boom-bust dynamics in biological invasions: towards an improved application of the concept
(John Wiley & Sons Ltd/CNRS, 2017)
Boom-bust dynamics – the rise of a population to outbreak levels, followed by a dramatic decline – have been associated with biological invasions and offered as a reason not to manage troublesome invaders. However, boom-bust ...
Alien plants as mediators of ecosystem services and disservices in urban systems: a global view
Urban areas have unique assemblages of species which are governed by novel ecological processes. People living in these environments have specific needs and demands in terms of ecosystem services (ES). Urban ecosystems are ...
Distribution of the invasive alien weed, Lantana camara, and its ecological and livelihood impacts in eastern Africa
(NISC (Pty) Ltd, 2017)
Lantana camara (lantana) is a major invasive shrub globally, impacting upon biodiversity, economies, ecosystem services, and driving socio-ecological change. The aim of this study was to determine the current and potential ...
ABSTRACT: Fragmentation effects and extinction debt in South African fynbos
(Elsevier B.V., 2017)
Patterns of floral resource use by two dominant ant species in a biodiversity hotspot
Ecological dominance in ants is often fuelled by carbohydrate intake. Most studies have focused on the importance of invasive ant mutualistic associations with trophobionts whereas few studies have investigated the ...
The global distribution of bamboos: assessing correlates of introduction and invasion
(Oxford University Press, 2017)
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 ...