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Now showing items 31-40 of 169
An analysis of primary and secondary production in lake Kariba in a changing climate
(University of Western Cape, 2011)
Analysis of temperature, rainfall and evaporation records over a 44-year period spanning the years 1964 to 2008 indicates changes in the climate around Lake Kariba. Mean annual temperatures have increased by approximately ...
Seasonal effects on the feeding ecology and habitat of Chersina Angulata in the South Western Cape
(University of the Western Cape, 2008)
Nearly one-third of the world’s tortoises live in South Africa, but little is known about their habitat requirements and feeding ecology. Chersina angulata, the angulate tortoise, is endemic to southern Africa, with a ...
Empirical and model derived respiration responses to climate in different soils of an arid South African ecosystem
(2009)
This study examined the magnitude of soil CO2 efflux in an arid South African ecosystem, the flux responses as well as those of key limiting nutrients to soil temperature increases and moisture reductions consistent with ...
The relevance of fog and dew precipitation to succulent plant hydrology in an arid South African ecosystem
(2009)
Fog and dew interception and utilization by plant canopies remains one of the least
considered aspects of vegetation studies at any scale yet the few studies that have been conducted point to their considerable influence ...
Biochemical investigation of anti-cancer activity of Tulbaghia violacea
(UWC, 2012)
Natural products have been a source of many pharmaceutical drugs and a number of drugs that are currently used in the treatment of cancer are derivatives of compounds originally isolated from natural products. There is ...
Review of South African genera of the family hexabothriidae price, 1942, parasites of chondrichthyan fishes
(2009)
The oligonchoinean monogenean family Hexabothriidae Price, 1942 currently consists of approximately 60 valid species, representing 15 genera. Hexabothriids are gill parasites of chondrichthyan fishes (sharks, rays and ...
Amphibian monitoring in Kakamega Forest, Kenya
(2007)
Since the late 1970 there has been increased concern of amphibian decline and extinction. Several causes for the worldwide declines have been suggested and include ultraviolet radiation, predation, pollution, climate change, ...
Impacts of degradation on critically endangered Oudtshoorn Gannaveld
(2010)
In the Succulent Karoo biome of South Africa vegetation degradation by overgrazing is a recognized threat to biodiversity. In the eastern Little Karoo region of the Western Cape Province, ostrich farming has degraded large ...
The relationship between sediment composition and infaunal polychaete communities along the southern coast of Namibia
(University of the Western Cape, 2005)
This study examined the relationship between sediment structure and infaunal polychaete communities off the southern coast of Namibia from two separate sets of data, and a total of ninety-two samples. It also examined ...
Can biofortified plants accumulate trace elements essential to the growth and development of humans?
(University of the Western Cape, 2013)
This study aimed to determine the nutrient content (Co, Cr, F, I, Se and V) of various vegetable based food items collected from the Cape Town area in the Western Cape Province of South Africa. This was done to determine ...