IUCN

Biodiversity is essential for sustainable development, and cultures from ancient times to the present day have exploited biodiversity. With the advent of scientific breeding, new plant varieties have been developed. Plant breeders are dependent upon the availability of a large pool of diverse genetic material represented by local races and wild relatives. Without the ability to draw from a diverse genetic reservoir, further improvement may not be possible.

This report analyses the factors which motivate land use by rural populations and provides a context for any policy or strategy which addresses natural resource conservation in the Sahel. The author suggests that production systems in the Sahel have reached or even exceeded their capacity to respond to the needs of a growing population and further that development aid has only had a negligible impact on the trend to over exploit.

Presents research results on LMEs including identification of the major driving forces causing large-scale changes in biomass yields and health; development of ecosystem component models; and monitoring and assessment strategies and techniques for measuring changing states of LMEs. Covers contributions from 68 marine scientists from 14 countries.

The 22 species of Megapodes or "thermometer-birds" are found in Australia, New Guinea, eastern Indonesia, the Philippines and some Pacific islands. With changing traditions and demographic patterns, and habitat loss, uncontrolled harvesting has reduced some populations to a point where sustainable use has become untenable.