Botswana Lesotho Namibia South Africa About Tutorial Glossary Document Centre Image Gallery Maps Google Earth
Home The River Basin People and the River Governance Meeting the Water Challenge
The River Basin  
Climate and Weather
Water Quality
Ecology and Biodiversity
 Aquatic Ecology
 Biodiversity in the Basin
 Endemic Species
 Alien Invasive Species
 Biodiversity Resources
 Terrestial Biomes and Eco-regions
 Human Impacts
 Laws and Policies
 Millennium Ecosystem Assessment


send a general website comment

report a specific problem with this page

Ecology and Biodiversity:




Biodiversity refers to the species diversity of the flora and fauna found in an ecosystem and can be used as an indicator of its health. Abundant biodiversity may represent health in one ecosystem, while in another the ecosystem may be optimal when occupied by only a few endemic species. Human activities, water quality and invasive species can alter and threaten the biodiversity of an ecosystem and thus the overall integrity of the ecosystem.

This section explores biodiversity by looking at:


Spiral Aloe.
Source:Brew 2006
( click to enlarge )



Explore the sub-basins of the Orange-Senqu River

Tour video scenes along the Orange-Senqu River related to the River Basin

Investigate land cover and terrestrial ecoregions in the basin

Examine how the hydrologic cycle moves water through and around the earth

Explore the interactions of living organisms in aquatic environments

You are here: Home Page > The River Basin > Ecology and Biodiversity > Biodiversity