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Birds and the urban ecology of Potchefstroom
(North-West University, 2004)
Human activities cause drastic changes in the environment, such as the fragmentation of habitats, which is the greatest threat to the world's biodiversity and biogeography. By using birds to study habitat changes, it ...
Effects of land-use on avian demography in the Kalahari area of the North-West Province, South Africa
(North-West University, 2004)
Desertification, whether due to anthropogenic pressures, climate change or other factors, has become a global concern. The far-reaching effects of desertification have prompted the formation of the United Nations Convention ...
Aquatic avifauna of the Middle Vaal River
(North-West University, 2006)
Ornithology should be considered as an essential part of ecological studies. Birds provide an easy way of monitoring the state of the environment, because they are easier to detect, simpler to locate than many other taxonomic ...
The determination of dioxin-like POPs in sediments and fish of the Vaal Triangle region, Gauteng, South Africa
(North-West University, 2006)
Water resources in South Africa are scarce, and should therefore be protected against
pollutants, also from persistent organic pollutants (POPs). This is emphasised by the
Stockholm Convention on POPs, which aims at ...
Diversity and distribution of birds in villages in the Kalahari
(North-West University, 2009)
Urbanisation and human settlements affects natural habitats in South Africa and around the world through the removal of vegetation, construction of roads and houses, and by various forms of pollution. The Bophirima District ...
Avian response to controlled fire at Barberspan
(North-West University, 2005)
Grasslands cover about a quarter of the Earth and are often characterised by wetlands (McAllister, 2000). A large diversity of animal life is found there. In South Africa, there are 21 species of grassland birds, of which ...
Passive sampling and distribution of DDT in air
(North-West University, 2013)
Dichloro-diphenyl-trichlorethane (DDT) is a chemical used in malaria control through indoor residual spraying (IRS) and has saved numerous lives in the past six decades. DDT use is restricted/banned under the Stockholm ...
Effects of Bt crop residues on the development, growth, and reproduction of the freshwater snail, Bulinus tropicus
(North-West University, 2014)
Genetically modified (GM) crops were introduced in South Africa in 1989 and commercially available by 1998. Legislation to control the use of GM crops was only implemented in 1999, with the genetically modified organisms ...
Evaluation of predictive models for pesticide behaviour in South African soils
(North-West University, 2009)
The re-evaluation of pesticide use patterns is a high priority internationally. The process has led to a reduction in the numbers of pesticides allowed for use in many countries. This withdrawal of pesticides is aimed at ...
Pollutants associated with mass mortality of Nile crocodiles (Crocodylus niloticus) in the Kruger National Park, South Africa
(North-West University, 2011)
The first of a series of mass mortalities of Nile crocodiles in the Olifants and Letaba rivers in the Kruger National Park (KNP) was reported in the winter of 2008. The present study investigated the levels and possible ...