Biodiversity hotspots for conservation priorities

Conservationists are far from able to assist all species under threat, if only for lack of funding. This places a premium on priorities: how can we support the most species at the least cost? One way is to identify |[lsquo]|biodiversity hotspots|[rsquo]| where exceptional concentrations of endemic species are undergoing exceptional loss of habitat. As many as 44% of all species of vascular plants and 35% of all species in four vertebrate groups are confined to 25 hotspots comprising only 1.4% of the land surface of the Earth. This opens the way for a |[lsquo]|silver bullet|[rsquo]| strategy on the part of conservation planners, focusing on these hotspots in proportion to their share of the world's species at risk.

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