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Phenology of indigenous and alien vascular flowering plants on sub-Antarctic Marion Island
(Stellenbosch : Stellenbosch University, 2011-03)
ENGLISH ABSTRACT: Species’ seasonal behaviour is of paramount importance in understanding community functioning
and dynamics. Recently, plant phenology has further gained significance as a reliable indicator of
climate ...
Species occupancy, distribution and abundance : indigenous and alien invasive vascular plants on sub-Antarctic Marion Island
(Stellenbosch : Stellenbosch University, 2008-12)
ENGLISH ABSTRACT: Macroecological relationships have rarely been studied at wide spatial scales and across geographic ranges of species in the field in the sub-Antarctic. In this thesis I examined the occupancy, distribution ...
Avian assemblages of invasive Australian Acacia thickets in the Western Cape
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: Human-modified habitats form increasingly large components of landscapes, threatening
biodiversity and creating challenges for conservation. In some cases altered habitats form
entirely novel ecosystems ...
Ecology of the Black-faced sheathbill on Marion Island
(Stellenbosch : Stellenbosch University, 2013-12)
ENGLISH ABSTRACT: As the pace of climate change has begun to accelerate so too has it become clear that the
direct impacts thereof are likely to have profound consequences for many island systems.
Moreover, it has also ...
Alien species and propagules in the Antarctic : movements through space and time
(Stellenbosch : University of Stellenbosch, 2009-03)
ENGLISH ABSTRACT: Although the impacts of biological invasions are widely appreciated, a bias exists in research effort to post‐dispersal processes because of the difficulties of measuring propagule pressure and the detecting ...
Variability among individuals and populations : implications for arthropod physiology
(Stellenbosch : Stellenbosch University, 2006-04)
ENGLISH ABSTRACT: Within arthropods, inter-individual and inter-population variation is generally poorly explored for
physiological parameters. Such physiological variability is important, as it can provide insight into
the ...
Climate change and invasion impacts in the sub-Antarctic
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: Climate change and biological invasions are major threats to biodiversity. In particular,
these threats are predicted to influence terrestrial systems in the sub-Antarctic, where
significant ecosystem ...
The extent, impact and management of ungulate translocations
(Stellenbosch : Stellenbosch University, 2008-12)
ENGLISH ABSTRACT: The worldwide movement of biota is of substantial concern for the conservation of
biodiversity. The movement of species takes place at three different scales. These are
translocations of indigenous ...
Molecular ecology of introduced species in South Africa : the bud gall-forming wasp Trichilogaster acaciaelongifoliae and the Argentine ant Linepithema humile
(Stellenbosch : Stellenbsoch University, 2008-12)
ENGLISH ABSTRACT: Introduced species displace native species and alter ecological communities, affect
agriculture as well as human health and are economically costly to eradicate. Long term
monitoring of introduced species ...
Physiological ecology and future distributions of two malaria vectors : Anopheles arabiensis and An. funestus
(Stellenbosch : Stellenbosch University, 2013-03)
ENGLISH ABSTRACT: Although malaria remains a major public health concern, especially in sub-Saharan Africa, little information exists on the physiological tolerances of malaria vectors. Here, I aimed to provide a comprehensive ...