La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	The forest batis, Batis mixta, is two species: description of a new, narrowly distributed Batis species in the Eastern Arc biodiversity hotspot
Auteurs :	Jon Fjeldså, Auteur ; Rauri C. K. Bowie, Auteur ; Jacob Kiure, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (147(4) OCT 2006)
Article en page(s) :	578-590
Langues:	Anglais
Résumé :	The forest batis, Batis mixta, is a common bird of the forests of the Eastern Arc Mountains of Tanzania and in some adjacent montane and coastal forests. Through new collecting efforts in most of this range we documented a well-marked change in morphology in the middle of the range. Supplementary genetic studies of the historical population structure suggest connectivity among the south-western and northern/coastal populations, but not between these parapatric groups. It is concluded that two species are involved, and a new name B. crypta is proposed for the south-western populations. A marked genetic break also exists towards B. capensis sola in northern Malawi. The morphologically distinctive form reichenowi in south-eastern Tanzania is genetically nested within B. mixta, and for now we keep it as a subspecies of B. mixta.

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