Browsing STUDENT RESEARCH OUTPUTS by Title
Now showing items 1-20 of 85
-
The absence of fire can cause a lag phase: The invasion dynamics of Banksia ericifolia (Proteaceae)
(2013)The transition from a species introduction to an invasion often spans many decades (a lag phase). However, few studies have determined the mechanisms underlying lag phases. Such a mechanistic understanding is vital if ... -
The acute hypoxic ventilatory response: Testing the adaptive significance in human populations
(Elsevier Inc, 2005)The acute Hypoxic Ventilatory Response (HVR) is an important component of human hypoxia tolerance, hence presumably physiological adaptation to high altitude. We measured the isocapnic HVR (L min¯¹ %¯¹) in two genetically ... -
Annual Research Meeting 2012 Posters
(2012-11-28)MSc and PhD students funded or supported by the Centre for Invasion Biology submitted A2 size posters to demonstrate their project research and findings to date. -
Assemblage level variation in springtail lower lethal temperature: the role of invasive species on sub-Antarctic Marion Island
(The Royal Entomological Society, 2009)It is widely held both in the physiological literature, and more generally, that the average characteristics of species within an assemblage differ among sites. Such generalizations should be based on investigations of ... -
An assessment of a proposal to eradicate non-native fish from priority rivers in the Cape Floristic Region, South Africa
(Taylor & Francis, 2012)Non-native fish are considered the most important threat to the survival of the indigenous freshwater fishes in the Cape Floristic Region (CFR). A pilot project to evaluate the use of the piscicide rotenone to eradicate ... -
Barriers to ecosystem restoration presented by soil legacy effects of invasive alien N2-fixing woody species: implications for ecological restoration
(Society for Ecological Restoration, 2018)Impacts of invasive alien N2-fixing woody species and how they can persist as soil legacy effects after invasive species control are well appreciated, but how soil legacy effects can present barriers to restoration is ... -
Between-lake variation in the trophic ecology of an invasive crayfish
(2017-09-28)1. The trophic ecology of invasive species has important implications for their impacts on recipient ecosystems, with omnivorous invaders potentially affecting native species and processes over multiple trophic levels. The ... -
A biogeographical assessment of anthropogenic threats to areas where different frog breeding-groups occur in South Africa: implications for anuran conservation
(Wiley Blackwell, 2012-04)Aim To determine the spatial relationship between areas where different frog breeding groups occur and elevated anthropogenic activities, and the conservation implications thereof. Location South Africa. Methods Data ... -
Chemical signalling in lizards: an interspecific comparison of femoral pore numbers in Lacertidae
(The Linnean Society of London, 2015)Animals communicate via a variety of sensory channels and signals. Studies on acoustic and visual communication systems suggest that differences in the physical environment contribute to the variety of signalling behaviour, ... -
Climate constrains the establishment and proliferation of Anthonomus santacruzi, a flower-feeding biological control agent of the invasive weed Solanum mauritianum in South Africa
(Taylor & Francis, 2017)The flowerbud-feeding weevil Anthonomus santacruzi Hustache (Coleoptera: Curculionidae) was released in South Africa in 2008 for the biological control of the invasive tree Solanum mauritianum Scopoli (Solanaceae). The ... -
Climate mediates the effects of disturbance on ant assemblage structure
(The Royal Society Publishing, 2015)Many studies have focused on the impacts of climate change on biological assemblages, yet little is known about how climate interacts with other major anthropogenic influences on biodiversity, such as habitat disturbance. ... -
Codivergence and multiple host species use by fig wasp populations of the Ficus pollination mutualism
(2012)Background: The interaction between insects and plants takes myriad forms in the generation of spectacular diversity. In this association a species host range is fundamental and often measured using an estimate of phylogenetic ... -
Critical thermal limits depend on methodological context
(The Royal Society, 2007-09-18)A full-factorial study of the effects of rates of temperature change and start temperatures was undertaken for both upper and lower critical thermal limits (CTLs) using the tsetse fly, Glossina pallidipes. Results show ... -
Deciphering the worldwide invasion of the Asian long-horned beetle: A recurrent invasion process from the native area together with a bridgehead effect
(John Wiley & Sons Ltd, 2019)Retracing introduction routes is crucial for understanding the evolutionary processes involved in an invasion, as well as for highlighting the invasion history of a species at the global scale. The Asian long‐horned beetle ... -
Development of alien and invasive taxa lists for regulation of biological invasions in South Africa
(2019)Background: Lists are fundamental for guiding policy and management of biological invasions. The process of developing regulatory lists of alien and invasive taxa should be based on scientific evidence through an objective, ... -
Diet and trophic niche of the endangered fish Garra ghorensis in three Jordanian populations
(John Wiley & Sons Ltd, 2016)Garra ghorensis is a small riverine cyprinid fish endemic to the southern Dead Sea that is endangered through habitat loss and invasive species. Here, their diet and trophic niche were assessed in three Jordanian populations: ... -
Dietary niche constriction when invaders meet natives: evidence from freshwater decapods
(British Ecological Society, 2016)1. Invasive species are a key driver of global environmental change, with frequently strong negative consequences for native biodiversity and ecosystem processes. Understanding competitive interactions between invaders and ... -
Different traits determine introduction, naturalization and invasion success in woody plants: Proteaceae as a test case
(2013)A major aim of invasion ecology is to identify characteristics of successful invaders. However, most plant groups studied in detail (e.g. pines and acacias) have a high percentage of invasive taxa. Here we examine the ...