La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Trans-equatorial range of a land bird lineage (Aves: Rallidae) from tropical forests to subantarctic grasslands
Auteurs :	Juan C. Garcia-R, Auteur ; Graeme Elliott, Auteur ; Kath Walker, Auteur ; Isabel Castro, Auteur ; Steven A. Trewick, Auteur
Type de document :	Article
Dans :	Journal of Avian Biology (47(2) MAR 2016)
Article en page(s) :	219-226
Langues:	Anglais
Résumé :	Despite the capacity for dispersal, range size varies considerably among birds species. Many species have restricted geographic spread, whilst others routinely travel long distances to reach preferred habitat. These alternatives are well expressed amongst the rails (Rallidae) and a varying tendency for movement results in overlapping distribution patterns. Here, we examine the situation of a particular lineage, the Lewinia rails (L. mirifica, L. pectoralis and L. muelleri) that inhabit a very wide spatial and ecological range. Lewinia occurs from the Philippines, north of the equator in Oceania, to Australia and the subantarctic Auckland Islands far to the south. Allopatric distribution and differences in plumage colour result in their treatment as distinct species but our mitochondrial molecular analysis (cyt b and CR) reveals genetic distances of less than

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