An Endemic Bird Area (EBA) is an area of land identified by BirdLife International as being important for habitat-based bird conservation because it contains the habitats of restricted-range bird species (those restricted to ranges smaller than 50,000 km2), which are thereby endemic to them. An EBA is formed where the distributions of two or more such restricted-range species overlap. Using this guideline, 218 EBAs were identified when Birdlife International established their Biodiversity project in 1987. A secondary EBA comprises the range of only one restricted-range species.
EBAs contain about 93% of the world’s restricted-range bird species, as well as supporting support many more widespread species. Half the restricted-range species are threatened or near-threatened, with the other half especially vulnerable to the loss or degradation of their habitats because of the small size of their ranges. Most EBAs are also important for the conservation of other animals and of plants. Although they cover less than 5% of the world’s land surface, their biological richness makes them high priorities for ecosystem conservation. The natural habitat of most EBAs is forest, especially tropical lowland forest and highland cloud forest, often comprising islands or mountain ranges, and varying in size from a few square kilometres to over 100,000 km2. Some 77% of EBAs lie in the tropics and subtropics.
Famous quotes containing the words bird and/or area:
“his head
May not lie on the breast nor his lips on the hair
Of the woman that he loves, until he dies.
O beast of the wilderness, bird of the air,
Must I endure your amorous cries?”
—William Butler Yeats (1865–1939)
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—Stephanie Martson (20th century)