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:
“They tell us sometimes that if we had only kept quiet, all these desirable things would have come about of themselves. I am reminded of the Greek clown who, having seen an archer bring down a flying bird, remarked, sagely: “You might have saved your arrow, for the bird would anyway have been killed by the fall.””
—Elizabeth Cady Stanton (1815–1902)
“During the Civil War the area became a refuge for service- dodging Texans, and gangs of bushwhackers, as they were called, hid in its fastnesses. Conscript details of the Confederate Army hunted the fugitives and occasional skirmishes resulted.”
—Administration in the State of Texa, U.S. public relief program (1935-1943)