Are Environmental Transitions More Prone to Biological Invasions?

Get Complete Project Material File(s) Now! » Study area and data The data we used were records of all naturalised alien plant species from the National Herbarium, Pretoria Computerised Information System (PRECIS), for Namibia, Botswana, South Africa, Lesotho and Swaziland....

Spawning and non-breeding activity of adult giant bullfrogs

Get Complete Project Material File(s) Now! » Overnight movement Study animals moved mostly at night. During daytime radio-tracking study animals were almost always buried or at the seasonal dams. Only 19 (2%) of 976 location fixes obtained for all RT...

FARMERS‟ OR CLIENT NEEDS ASSESSMENT

Get Complete Project Material File(s) Now! » Land ownership The Province has a dualistic agricultural economy, which comprises a well-developed commercial sector (in the former South African areas) and a predominantly subsistence sector in the former Bophuthatswana homeland (Keyter, 1990,...

How cancer cells bypass cell death mechanisms

Get Complete Project Material File(s) Now! » Plant material and extraction Plectranthus ciliatus leaves were harvested in the Manie van der Schijff botanical garden,Pretoria, South Africa. The leaves were authenticated and a voucher specimen deposited in the Schweickerdt Herbarium, Pretoria,...

Fundamental principles of comprehensive multidimensional chromatography

Get Complete Project Material File(s) Now! » Methods of making columns electrically conductive Resistive heating of flexible fused silica columns with metal cladding was first suggested by Lee in 198415. The first practical demonstration of this technology for GC analysis...

GEOLOGY OF THE PLATREEF ON NONNENWERTH

Get Complete Project Material File(s) Now! » GEOLOGY OF THE PLATREEF ON TOWNLANDS The farm Townlands hosts the town of Mokopane, formerly Potgietersrus (Fig. 4.1). A drillcore intersecting part of the Platreef has been investigated by Manyeruke (2003) and Manyeruke...

Organic pollutants and human health

Get Complete Project Material File(s) Now! » PERFLUOROACYLANHYDRIDES Heptafluorobutyric acid anhydride (HFBA) has been used to derivatize the primary amine on tocainide, an antiarrhythmic drug [160]. The derivative yield was 92% in toluene with a reagent concentration of only 0.01%...

Regional IUCN Red List assessments for South African terrestrial and marine mammals

Get Complete Project Material File(s) Now! » Relationship between mammals and human activity measures Anthropogenic activities form a complex web of threats that is influenced by various socioeconomic and political factors (e.g. national policies, economic conditions and a host of...

FORAGING BEHAVIOUR AND HABITAT USE OF THE AFRICAN WILD CAT, FELIS SILVESTRIS CAFRA IN THE KGALAGADI TRANSFRONTIER PARK

Get Complete Project Material File(s) Now! » Annual and seasonal home range sizes The annual home range data are presented in Table 4.2 with the 100% MCP and the 95% MCP estimates. Annual home range estimates (MCP 95%) in adult...

Hypergeometric function of matrix argument

Get Complete Project Material File(s) Now! » Bimatrix variate beta type IV distribution In this section we derive the joint pdf of two dependent matrix variate beta type I variates (see (3.3)) given by the Wishart ratios (1.4) and call...