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    Browsing Doctoral Degrees (Botany and Zoology) by Title 
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    • Doctoral Degrees (Botany and Zoology)
    • Browsing Doctoral Degrees (Botany and Zoology) by Title
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    Browsing Doctoral Degrees (Botany and Zoology) by Title

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    Now showing items 1-20 of 120

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        The ability of terrestrial Oligochaeta to survive in ultramafic soils and the assessment of toxicity at different levels of organisation 

        Maleri, Rudolf A. (Stellenbosch : University of Stellenbosch, 2006-12)
        Metals are natural elements of the earth crust usually present at low concentrations in all soils. Although many metals such as cobalt, copper, iron and zinc are essential to living organisms, at elevated concentrations ...
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        Alien species and propagules in the Antarctic : movements through space and time 

        Lee, Jennifer Elizabeth (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 ...
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        An analysis of the Pseudocordylus melanotus complex (Sauria: Cordylidae) 

        Bates, Michael Francis (Stellenbosch : Stellenbosch University, 2007-04)
        ENGLISH ABSTRACT: The taxonomic status of southern Africa’s rupicolous crag lizards (genus Pseudocordylus) was investigated. As considerable confusion exists in the literature regarding the type specimens and type ...
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        An anatomical and systematic study of the family Mesosauridae (reptilia : proganosauria) with special reference to its associated fauna and palaeoecological environment in the Whitehill Sea 

        Oelofsen, B. W.(Burger Wilhelm) (Stellenbosch : Stellenbosch University, 1900)
        ENGLISH ABSTRACT: The anatomy and taxonomy of the southern African fossil reptile Mesosaurus from the Whitehill Shale has shown that the Formation is a chronostratigraphic unit. It is postulated that the almost identical ...
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        Aspects of ecosystem function in a woodland savanna in South West Africa 

        Rutherford, Michael Charles (Stellenbosch : Stellenbosch University, 1975-12)
        ENGLISH ABSTRACT: A study was made of certain relations operating within a South West African woodland savanna ecosystem which was characterised by simplification within most of its basic components. . Main attention was ...
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        Assembly and disassembly of bird pollination communities at the Cape of Africa 

        Geerts, Sjirk (Stellenbosch : Stellenbosch University, 2011-03)
        ENGLISH ABSTRACT: With the current global decline in pollinators, and the concurrent decline in plant species, pollination research is becoming increasingly important. However, studies outside Europe and North-America and ...
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        Assessing the impacts of invasive alien plants on urban ecosystem services 

        Potgieter, Luke (Stellenbosch : Stellenbosch University, 2019-04)
        ENGLISH ABSTRACT: The sustainable provision of ecosystem services (ES) is a critical issue in the ongoing and evolving urbanization process that is placing enormous pressures on natural resources within and around urban ...
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        Assessing the interaction between history of usage and plant invasions : Bamboo as a case study 

        Canavan, Susan (Stellenbosch : Stellenbosch University, 2018-12)
        ENGLISH ABSTRACT: Studies in invasion science often focus on the biological or environmental implications of invasive alien species. However, biological invasions are inherently due to the humanmediated dispersal of species; ...
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        Assessing vegetation dynamics in response to climate variability and change across sub-Saharan Africa 

        Davis-Reddy, Claire (Stellenbosch : Stellenbosch University, 2018-03)
        ENGLISH ABSTRACT: Understanding and predicting how anthropogenic climate change is likely to impact terrestrial ecosystems across sub-Saharan Africa is a key question for both ecology and for regional and global climate ...
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        An assessment of the potential biodiversity impacts from biofuel production in South Africa 

        Blanchard, Ryan (Stellenbosch : Stellenbosch University, 2014-12)
        ENGLISH ABSTRACT: Biofuels are being promoted as a global necessity to meet climate change targets through the replacement of fossil fuels. Many countries have identified biofuels as a potential mechanism to meet these ...
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        Bacterial biological control of toxic cyanobacteria and the resulting eco-toxicity 

        Ndlela, Luyanda Lindelwa (Stellenbosch : Stellenbosch University, 2019-12)
        ENGLISH ABSTRACT: The increased frequency and toxicity of freshwater cyanobacterial blooms is a cause for concern globally. Not only do these blooms result in reduced levels of oxygen in the water column and unpleasant ...
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        Barriers to ecosystem restoration after clearing invasive Acacia species in the South African fynbos : soil legacy effects, secondary invaders and weedy native species 

        Nsikani, Mlungele Mlungisi (Stellenbosch : Stellenbosch University, 2018-12)
        ENGLISH ABSTRACT: A significant proportion of the world’s ecosystems are invaded by alien N2-fixing woody species such as Australian acacias. Invasive alien N2-fixing woody species often transform ecosystems through their ...
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        Biochemical and physiological changes associated with estrogenic activity in Xenopus laevis : a model for the detection of endocrine disruption 

        Hurter, Etienne (Stellenbosch : Stellenbosch University, 2003-03)
        ENGLISH ABSTRACT: Concern has increased that widespread adverse effects are occurring in humans and wildlife populations as a result of exposure to environmental chemicals (mostly man-made) that disrupt the normal ...
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        Biodiversity and ecology of ophiostomatoid fungi associated with trees in the Cape floristic region of South Africa 

        Musvuugwa, Tendai (Stellenbosch : Stellenbosch University, 2014-04)
        ENGLISH ABSTRACT: Very little is known about the diversity of fungi associated with Afromontane forests of the Cape Floristic Region (CFR) of South Africa. The ophiostomatoid fungi include many species, some known as ...
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        The biogeography, systematics and conservation of Phreatoicidean isopods in South Africa 

        Gouws, Gavin (Stellenbosch : University of Stellenbosch, 2004-12)
        ENGLISH ABSTRACT: Historically, isopods of the suborder Phreatoicidea were thought to be represented in southern Africa by four species belonging to the endemic genus Mesamphisopus. This taxonomy was based on poor ...
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        A biosytematic [i.e. biosystematic] study of the seven minor genera of the Hyacinthaceae 

        Van der Merwe, Alison M. (Alison Mary) (Stellenbosch : Stellenbosch University, 2002-03)
        ENGLISH ABSTRACT: A biosytematic revision of the seven minor genera of the Hyacinthaceae, including twenty-two species, was undertaken. Muller-Doblies & Muller-Doblies (1997) considered these seven genera (Amphisiphon ...
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        Carcinus maenas in South Africa : status, impacts and management 

        Mabin, Clova Airth (Stellenbosch : Stellenbosch University, 2018-03)
        ENGLISH ABSTRACT: The European shore crab, Carcinus maenas, has established invasive populations on four continents, with its congener, the Mediterranean shore crab, C. aestuarii, invading another. Carcinus maenas, in ...
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        Causes and consequences of body armour in the group-living lizard, Ouroborus cataphractus (Cordylidae) 

        Broeckhoven, Chris (Stellenbosch : Stellenbosch University, 2015-03)
        ENGLISH ABSTRACT: Cordylidae is a family of predominantly rock-dwelling sit-and-wait foraging lizards endemic to southern Africa. The significant variation in spine length and extent of osteoderms among taxa makes the ...
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        Cellular biomarkers of exposure to the fungicide copper oxychloride, in the common garden snail Helix aspersa, in Western Cape vineyards 

        Snyman, Reinette Georgenie (Stellenbosch : University of Stellenbosch, 2001-03)
        Copper oxychloride (Cu2CI(OH)3) is a broad-spectrum fungicide, intensively sprayed in many South African vineyards and orchards. It is necessary to find accurate and effective methods of monitoring the effects of this ...
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        Characterization of candidate genes related to estrogenic activity in Oreochromis mossambicus 

        Esterhuyse, Maria M (Stellenbosch : Stellenbosch University, 2008-03)
        Endocrine disruption is an alteration of the chemical messaging processes in the body. The value of studies‐ and monitoring of endocrine disruption using techniques included in the field of toxicogenomics is undoubtedly ...

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