Now showing items 1-10 of 19
Heavy metals in South African medicinal plants.
Plants are able to take up and accumulate certain environmental contaminants such as heavy metals. When the plants are ingested by man, these contaminants are transferred along the food chain. Due to the poorly regulated ...
Molecular diagnostics and phylogenetics of white grubs in sugarcane.
Scarabaeid pests in South Africa and especially KwaZulu-Natal are characterised by a very long larval life cycle and short pupal and adult periods. However, it has nearly always been the adults of the species that have ...
Integrated physiology and behaviour of Thallomys nigricauda along an aridity gradient.
Climate change predictions suggest that the continent most vulnerable to climate change is Africa. The impacts of potential changes which include increases in air temperatures and rainfall variability are negative with ...
Above- and belowground competition in Savanna systems.
The structure and composition of savanna vegetation is influenced by resource availability and disturbance. Grasses, a major component of savannas, influence this resource availability by competing directly with trees ...
Genetic analysis of Chaerephon pumilus (Chiroptera: Molossidae) from southern Africa.
Chaerephon pumilus, the little free-tailed bat, (family: Molossidae) has a distribution throughout most of sub-Saharan Africa and the eastern region of Madagascar. The vast geographical distribution of this species is ...
The ecological implications of sea-level rise and storms for sandy beaches in KwaZulu-Natal.
The aesthetic appeal of beaches has made coastal properties prime sites for development. However, this development has been mismanaged and is within the littoral active zone. Beaches retreat landwards as sea levels rise, ...
The influence of root chilling on the hydraulic characteristics of selected Eucalyptus taxa.
The hydraulic conductance of a plant is a significant factor in determining the
Behaviour of bottlenose dolphins : inference for dolphin tourism off Durban, South Africa.
During long-term studies of dolphins, the number of individuals in the population being studied are constantly monitored using the technique of photo-identification. This constant monitoring makes use of different ...
The effect of elevated atmospheric CO2 on the growth and physiology of Chromolaena odorata.
Rising atmospheric CO2 (Ca) concentrations have generated concern among scientists, mainly because of CO2’s role as a greenhouse gas and its influence on plant growth and development. Previous research has suggested that ...
Environmental stochasticity and African elephant population dynamics : investigating limitation through juvenile mortality.
The successful conservation management of African elephants depends largely on understanding the fundamental processes driving the population regulation of this species. Southern Africa’s increasing populations have raised ...