Endemic Bird Area

Last updated

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 (see below for definition), which are thereby endemic to them. An EBA is formed where the distributions of two or more such restricted-range species overlap. [1] Using this guideline, 218 EBAs were identified when Birdlife International established their Biodiversity project in 1987. [2] A secondary EBA comprises the range of only one restricted-range species, or an area which is only the partial breeding range of a range-restricted species. [3]

Contents

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. [1]

Restricted-range bird species

A restricted-range bird species is a term coined by BirdLife International in conjunction with the identification of Endemic Bird Areas. It is defined as a landbird (i.e. not a seabird) species which is estimated to have had a breeding range of not more than 50,000 km2 since 1800. It includes birds which have become extinct which qualify on the range criterion. It does not include birds which, although they meet the range criterion today, were historically (since 1800) more widespread. [4]

See also

Related Research Articles

A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation. Norman Myers wrote about the concept in two articles in The Environmentalist in 1988 and 1990, after which the concept was revised following thorough analysis by Myers and others into “Hotspots: Earth’s Biologically Richest and Most Endangered Terrestrial Ecoregions” and a paper published in the journal Nature, both in 2000.

<span class="mw-page-title-main">Important Bird Area</span> Area recognized as a habitat for bird population conservation

An Important Bird and Biodiversity Area (IBA) is an area identified using an internationally agreed set of criteria as being globally important for the conservation of bird populations.

This is a master list pertaining to lists of endemic birds. As applied to birds, the term "endemic" refers to any species found only within a defined geographical area. There is no upper limit for the area; it would not be incorrect to refer to all bird species as endemic to Earth. In practice, the largest areas for which the term is in common use are countries and geographical regions. An Endemic Bird Area (EBA), a term devised by BirdLife International, is a geographical region of the world that contains two or more restricted-range species, while a "secondary area" contains one restricted-range species.

<i>Endemic Bird Areas of the World</i> 1998 book by Alison J. Stattersfield, Michael J. Crosby, Adrian J. Long and David C. Wege

Endemic Bird Areas of the World: Priorities for Biodiversity Conservation represents an effort to document in detail the endemic biodiversity conservation importance of the world's Endemic Bird Areas.

Putting biodiversity on the map: priority areas for global conservation by C. J. Bibby, N. J. Collar, M. J. Crosby, M.F. Heath, Ch. Imboden, T. H. Johnson, A. J. Long, A. J. Stattersfield and S. J. Thirgood (ISBN 0-946888-24-8) is a 1992 book published by the International Council for Bird Preservation.

<span class="mw-page-title-main">Tropical Andes</span> Tropical subregion of the Andes Mountains

The Tropical Andes is northern of the three climate-delineated parts of the Andes, the others being the Dry Andes and the Wet Andes. The Tropical Andes' area spans 1,542,644 km2 (595,618 sq mi).

<span class="mw-page-title-main">Pearly-eyed thrasher</span> Species of bird

The pearly-eyed thrasher is a bird in the thrasher family Mimidae. It is found on many Caribbean islands, from the Bahamas in the north to the Grenadines in the south, with an isolated subspecies on Bonaire.

<span class="mw-page-title-main">African river martin</span> Migratory passerine bird of the swallow family

The African river martin is a passerine bird, one of two members of the river martin subfamily of the swallow family, Hirundinidae. When discovered, it was not initially recognised as a swallow, and its structural differences from most of its relatives, including its stout bill and robust legs and feet, have led to its current placement in a separate subfamily shared only with the Asian white-eyed river martin. The African river martin is a large swallow, mainly black with a blue-green gloss to the head and a greener tint to the back and wings. The under-wings are brownish, the underparts are purple-black, and the flight feathers are black. This martin has red eyes, a broad orange-red bill and a black, square tail. Young birds are similar in appearance to the adults, but have browner plumage. This species has a variety of unmusical calls, and displays both in flight and on the ground, although the purpose of the terrestrial display is unknown.

<span class="mw-page-title-main">Malagasy pond heron</span> Species of bird

The Malagasy pond heron, also known as the Madagascar pond heron or Madagascar squacco heron, is a species of heron of the family Ardeidae. They breed in Madagascar, Réunion and the Seychelles, and spend the non-breeding season in eastern mainland Africa. The population is estimated to number only 1,300–4,000 adults and the species is considered endangered.

<span class="mw-page-title-main">Multicoloured tanager</span> Species of bird

The multicoloured tanager is a species of bird in the family Thraupidae. It is endemic to the mountains of Colombia, and as of 2010 has been categorized as vulnerable (VU) by the IUCN.

<span class="mw-page-title-main">Small ground finch</span> Species of bird

The small ground finch is a species of bird in the tanager family Thraupidae. Endemic to the Galápagos Islands, it is common and widespread in shrubland, woodland, and other habitats on most islands in the archipelago. It commonly feeds on small seeds and parasites from the skins of Galápagos land and marine iguanas and Galápagos tortoises.

<span class="mw-page-title-main">Malayan whistling thrush</span> Species of bird

The Malayan whistling thrush or Malaysian whistling-thrush is a species of bird in the family Muscicapidae. It is endemic to the Malay Peninsula. Due primarily to habitat loss, its population is thought to be in decline.

Livingstone is a national park and state conservation area located 30 kilometres (19 mi) south of Wagga Wagga and 10 kilometres (6.2 mi) east of Mangoplah, in the South West Slopes region of south western New South Wales.

The Key Biodiversity Areas (KBA) approach helps to identify and designate areas of international importance in terms of biodiversity conservation using globally standardised criteria. KBAs extend the Important Bird Area (IBA) concept to other taxonomic groups and are now being identified in many parts of the world, by a range of organisations. Examples include Important Plant Areas (IPAs), Ecologically and Biologically Significant Areas (EBSAs) in the High Seas, Alliance for Zero Extinction (AZE) sites, Prime Butterfly Areas, Important Mammal Areas and Important Sites for Freshwater Biodiversity, with prototype criteria developed for freshwater molluscs and fish and for marine systems. The determination of KBAs often brings sites onto the conservation agenda that hadn't previously been identified as needing protection due to the nature of the two non-exclusive criteria used to determine them; vulnerability; and irreplaceability.

<span class="mw-page-title-main">Sulawesi lowland rain forests</span> Ecoregion in Sulawesi, Indonesia

The Sulawesi lowland rain forests is a tropical moist forest ecoregion in Indonesia. The ecoregion includes the lowlands of Sulawesi and neighboring islands.

References

  1. 1 2 "Endemic Bird Areas". BirdLife International. Archived from the original on 2010-11-06. Retrieved 2012-01-31.
  2. A-Z of Areas of Biodiversity Importance: Endemic Bird Areas (EBA) accessed 10 May 2011
  3. Stattersfield et al. 1998, p. 24.
  4. Stattersfield et al. 1998, p. 20–22.

Sources

Further reading