Now showing items 1-4 of 4
The evolution of the house sparrow (Passer domesticus) in southern Africa.
The house sparrow, Passer domesticus, is one of the most successful invading bird species in the world. It was introduced to southern Africa around 1900 and has since spread through the region. Its dispersal was characterised ...
The development of clone-unspecific micropropagation protocols for three commercially important Eucalyptus hybrids.
Micropropagation methods are often used to supplement existing clonal programmes for Eucalyptus species. However, genotypic differences among clones require the implementation of clone-specific protocols, an expensive and ...
The effect of elevated CO2 levels on the growth of two Acacia species.
Climate change, induced by increases in the concentration of greenhouse gases in the atmosphere, can affect the growth and community structure of ecosystems in two ways. Firstly directly through changes in atmospheric ...
Patterns, mechanisms and evolution of avian facultative hypothermic responses : a southern African perspective.
Recent evidence suggests that avian facultative hypothermic responses are more common than previously thought. Traditionally, several categories of avian hypothermic responses have been recognized, and are frequently ...