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A COMBINATION of climate change and habitat destruction will significantly threaten 400 to 900 bird species by 2050, according to researchers who have carried out a global analysis of the effects of human activities on land-dwelling birds.

By the end of the century, the list will be roughly twice as long.
The birds at risk are those which the researchers predict will lose at least half of their habitat range. They said that although the effects of climate change are significant, they are dwarfed by damage to the birds' habitat due to, for example, logging to convert forest to farmland.

The analysis used data from the UN's Millennium Ecosystem Assessment (MEA) a five-year project begun in 2001 involving more than 1,300 experts worldwide, which aimed to provide a state-of-the-art appraisal of the world's ecosystems, the services they provide and how to conserve them.

The team used global political scenarios developed by the MEA to project what would happen to habitats over the next century.

Even with the most optimistic assumptions about global action on climate change and efforts to slow habitat destruction in the tropics, large numbers of the 8,750 land bird species were endangered. read more......

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