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Much concern has been expressed about the sustainability of fuelwood harvesting in Africa. Most models predict that demand will outstrip supply within...

Wild large herbivores provide goods and income to rural communities, have major impacts on land use and habitats of conservation importance and, in so...

An important factor limiting the wider application of constructed ecosystems for bioremediation of sites contaminated by toxic chemicals is their rela...

Altered global climates in the 21st century pose serious threats for biological systems and practical actions are needed to mount a response for speci...

The population dynamics of Biomphalaria pfeifferi were studied at 4 river sites in the Zimbabwe highveld for periods of 4 to 28 months during 1986 to ...

Agricultural intensification has led to the loss of most natural wetlands from human-dominated landscapes but, in recent decades, wetland restoration ...

Freshwater ecosystems have long been affected by numerous types of human interventions that have a negative impact on their water quality and ecologic...

Eutrophication constitutes a serious threat to many European lakes and many approaches have been used during the past 20-30 years to improve lake wate...

The shores of many lakes have been substantially altered by human developments such as erosion control structures or recreational beaches. Such altera...

Fluvial environments are lost following construction of dams and flooding of river valleys. Rivers flowing into newly created reservoirs are still con...