INTERNATIONAL DAY FOR BIOLOGICAL DIVERSITY

This includes semi arid lands such as the Karoo and the Horn of Africa, savannah landscapes such as the Eurasian steppes and the North American Great Plains, and so-called Mediterranean landscapes. Home to a richness of biological diversity, they are also central to the livelihoods of almost 2 billion people. Drylands ecosystems receive very erratic rainfall, and as a result are very fragile.
More information:
http://www.biodiv.org/programmes/outreach/awareness/biodiv-day-2006.shtml