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La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Geographical and altitudinal distribution of birds endemic to the Albertine Rift
Auteurs :	S. O. Bober, Auteur ; M. Herremans, Auteur ; M. Louette, Auteur ; J. C. K. Peterhans, Auteur ; J. M. Bates, Auteur
Type de document :	Article
Dans :	Ostrich (No number JUL 2001)
Article en page(s) :	189-196
Langues:	Anglais
Résumé :	For 37 endemic bird species from the Albertine Rift identified by Stattersfield et al. (1998), georeferenced collections of the Royal Museum for Central Africa (Tervuren, Belgium; n = 2266). The Field Museum (Chicago, USA; n = 774) and the Los Angeles County Museum, (Los Angeles, USA; n = 485) were pooled. Geographical distribution maps were plotted and altitudinal profiles (based on data provided by the collectors) were prepared. Because specimen information has an historical component,these data provide a base line for documenting historical changes and can help direct conservation and fieldwork priorities. There is a relationship between horizontal and vertical distributions. In general, more widespread species also occur over a wide range of altitudes. Most species with restricted ranges occur in a small band at the lower edge of the mountane forest, or below that, in transitional forest. Thus, they are submontane and generally have their distribution centres W of the Rift. Poorly known species also appear to fall Into this group. These submontane species are of greatest conservation concern and should be a focus for future studies. There are no high altitude specialists among the endemic species. Distribution maps for individual species will be made available on web sites of our institutions. Until maps can be based on global collections and field observations, present plots are working documents. Gaps in information are identified and using a Parsimony Analysis of Endemicity approach, an hypothesis of relationships among the montane areas of the Albertine Rift is presented.

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