Browsing DATASETS and THESES: non-spatial (Masters) by Issue Date
Now showing items 1-20 of 64
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The restoration potential of fynbos riparian seed banks following alien clearing
(2007-05-04)Riparian areas contribute significantly to the spread of many invasive alien tree species which alter the ecosystem by bringing about significant water loss and changing the natural flow regimes of the system. For this ... -
Avifaunal responses to environmental conditions and land-use changes in South Africa: diversity, composition and body size
(2007-06-14)In macroecology, body sizes in assemblages have traditionally been investigated from two perspectives: body size frequency distributions (BSFDs) and geographic variation in body size. Neither of these has been investigated ... -
Effects of Chromolaena odorata on mammalian biodiversity in Hluhluwe-iMfolozi Park, South Africa
(2008-03-31)This study investigated the effects of the Triffid weed Chromolaena odorata on small and large mammals in Hluhluwe-iMfolozi Park. C. odorata is a widespread invasive alien plant that poses threat to the highly maintained ... -
Spider community responses to Chromolaena odorata invasion, grassland type and grazing intensities
(2008-05-06)Biological indicators measure components of the biota and are used to give general information about complex ecosystems in which they occur, playing key roles in conservation planning and management. This study illustrates ... -
Impacts of the invasive reed Arundo donax on biodiversity at the community-ecosystem level
(2008-05-08)Arundo donax is an invasive species that mostly impacts on sensitive riparian ecosystems. In California, USA, Arundo worsens flood effects, outcompetes and displaces indigenous plant and animal species, creates fire hazards, ... -
The Restoration Potential of Fynbos Riparian Seed Banks after Alien Clearing
(2008-06-24)Riparian areas are highly complex systems with varying levels of disturbance that are highly susceptible to invasion by alien plants. Once invaded, riparian areas play a major role in the dispersal and spread of invasive ... -
Synergistic impact of invasive alien trees and the alien Argentine ant on local ant assemblages in the Cape Floristic Region
(2008-07-03)There is worldwide concern over the impact of invasive alien organisms on indigenous biota. Alien tree invasions have reached major proportions in the global biodiversity hotspot, the Cape Florsitic Region (CFR). Furthermore, ... -
Arthropod assemblages in a savanna invaded by Opuntia stricta (Cactaceae) in the Kruger National Park, South Africa
(2009-08-13)Invasive alien species are considered the second greatest threat to global biodiversity after habitat loss. South Africa is not immune from such threats and it is estimated that 10 million ha (8.28 %) of land has been ... -
The role of hydrocarbons in nestmate recognition of the Invasive Argentine ant, Linepithema humile (Mayr)
(2009-12-04)Argentine ant behvaiour and chemical communication signals. -
Alien grass invasion of Renosterveld: Influence of soil variable gradients
(2010-09-23)This thesis examines the role of agricultural activity in the process of invasion of west coast renosterveld fragments by annual alien grass species. This highly endangered vegetation type has less than 5% remaining, it ... -
The extent of woody plant invasion in selected sites of the communally managed Molopo District, North West Province.
(2010-11-29)Woody plant invasion (bush encroachment) is a problem in the semi arid communal areas of the North West Province which had been affecting the Molopo Area as early as 1960. It affects the livelihoods of the communal farmer ... -
History and status of oyster exploitation and culture in South Africa, and the role of oysters as vectors for marine alien species
(2010-12-02)In South Africa, both wild and cultivated oysters are consumed. Edible wild oysters include Striostrea margaritacea, Saccostrea cucullata, Ostrea atherstonei and O. algoensis and all occur along the South and East coasts. ... -
Wildflower farming on the Agulhas Plain
(2011-01-26)This data reports on various aspects related to wildflower farming on the Agulhas Plain. Firstly, by administering a questionnaire, the extent and application of farming practices was investigated. Additionally, the opinion ... -
Distribution and bait preference of the Argentine ant in natural vegetation
(2011-11-17)Since its introduction in 1898 into South Africa, the Argentine ant, Linepithema humile, has invaded human-occupied areas (i.e. urban and agricultural areas) and natural areas characterised by few, if any, anthropogenic ... -
Invasive Australian acacias: reproductive biology and effects on native plant-pollinator communities in Cape fynbos
(2012-01-18)My master’s research combines aspects of pollination biology and invasion biology to explore the invasive predictors and impacts of a globally invasive group of plants – Australian acacias. Specifically, I investigate the ... -
Meta data for MSC ant species list and environmental variables
(2012-01-18)Raw ant species data and numbers collected at Sani Pass South africa -
Meta data for Sani Pass MSc
(2012-01-18)Merta data, ant species list and numbers, vegetation classification, temperature datatsets, soil analysis -
Species-specific hydrocarbon profiles of South African fig wasp communities (Hymenoptera: Chalcidoidea)
(2012-01-23)Gas chromatography(cuticular hydrocarbon) and genetic data of fig wasps (Otitesella, Elisabethiella stuckenbergi, Elisabethiella glumosae and Ceratosolen capensis) collected in South Africa. -
Patterns of genetic variation in the common starling, Sturnus vulgaris, in South Africa
(2012-01-23)Exotic species are non-native plants or animals that are introduced into areas where they do not naturally occur. Exotic species can out-compete natives by reproducing faster, competing for food and habitat more efficiently, ...