"Discusses the variety of living things in the ecosystem of a river"--Provided by publisher.

Includes index.

What is biodiversity? -- Why is biodiversity important? -- Rivers of the world -- River biodiversity -- River ecosystems -- Threats to rivers -- Biodiversity threat : Urbanization -- Biodiversity threat : Invasive species -- Biodiversity threat : Agriculture -- Biodiversity threat : Climate change -- River conservation -- Case study : the Ganges River -- What is the future of rivers?.