Habitat-forming invasive species cause large, novel changes to the abiotic environment. These changes may elicit important behavioural responses in native fauna, yet little is known about mechanisms driving this behaviour ...

To evaluate the effects of contaminants or nutrient limitation in natural waters, it is often desirable to perform controlled exposures of organisms. While in situ exposures are routine for caged organisms or macrophytes, ...

Studies of reef fish herbivory have mainly focused on the impacts and behaviour of adults of tropical species. In this study, the ontogenetic shifts in home range, aggression, feeding rate, diet and gut morphology in ...

Using native vegetation to improve soil stiffness, stabilise slopes and control erosion is a rapidly evolving process. A theoretical model previously developed by the authors for the rate of tree root water uptake together ...

A theoretical model of conventional oil production has been developed. The model does not assume Hubbert¿s bell curve, an asymmetric bell curve, or a reserve-to-production ratio method is correct, and does not use oil ...

There is growing concern that developing countries, such as South Africa, should reduce their coal dependence for energy generation and look to other cleaner technologies. Hydroelectricity is one such option. A number of ...