title: Mitochondrial phylogeny of the Eurasian/African reed warbler complex (Acrocephalus, Aves). Disagreement between morphological and molecular evidence and cryptic divergence: A case for resurrecting Calamoherpe ambigua Brehm 1857.
abstract: A tree based on the mitochondrial cyt b gene for 278 samples from throughout the range of the Eurasian Reed Warbler Acrocephalus scirpaceus - African Reed Warbler A. baeticatus complex shows well-supported geographically structured divergence for eight distinct lineages. The phylogenetic structuring together with the clarification of priority, provided by sequence data from seven type specimens, suggests that both taxonomy and distribution boundaries are in need of revision. The Iberian and Moroccan populations form a well-supported clade, and we propose that these are treated as taxonomically distinct, under the name ambiguus (Brehm, 1857). We propose that the names scirpaceus, fuscus, avicenniae, ambiguus, minor, cinnamomeus, hallae and baeticatus are used for the well supported clades in the complex, which we recommend to treat as one polytypic species, A. scirpaceus, pending studies of gene flow and assortative mating in the contact zones.
authors.affiliation: University of Gothenburg, Department of Biology and Environmental Sciences, Systematics and Biodiversity, Box 463, SE-405 30 Göteborg, Sweden.
authors.forename: Urban
authors.initials: U
authors.lastname: Olsson
authors.affiliation: Equipe de Recherche «Valorisation des Ressources Naturelles et Biodiversité», Faculty of Sciences, University Chouaib Doukkali, El Jadida, Morocco.
authors.forename: Hamid
authors.initials: H
authors.lastname: Rguibi-Idrissi
authors.affiliation: Martínez de la Rosa 27 Pral 3ª, 08012 Barcelona, Spain.
authors.forename: José Luis
authors.initials: JL
authors.lastname: Copete
authors.affiliation: Natural Processes Monitoring Team, Doñana Biological Station - CSIC, C/Americo Vespucio s/n, E-41092 Seville, Spain.
authors.forename: José Luis
authors.initials: JL
authors.lastname: Arroyo Matos
authors.affiliation: 2, Route du Radôme, 22560 Pleumeur-Bodou, France.
authors.forename: Pascal
authors.initials: P
authors.lastname: Provost
authors.affiliation: Abdelmalek Essaadi University, Faculty of Sciences, Department of Biology, M'Hannech II, 93030 Tétouan, Morocco.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Amezian
authors.affiliation: Department of Animal Ecology, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18 D, SE-752 36 Uppsala, Sweden; Swedish Species Information Centre, Swedish University of Agricultural Sciences, Box 7007, SE-750 07 Uppsala, Sweden.
authors.forename: Per
authors.initials: P
authors.lastname: Alström
authors.affiliation: CESCO, UMR7204 Sorbonne Universités-MNHN-CNRS-UPMC, Centre de Recherches sur la Biologie des Populations d'Oiseaux, CP 135, 43 Rue Buffon, 75005 Paris, France. Electronic address: fjiguet@mnhn.fr.
authors.forename: Frédéric
authors.initials: F
authors.lastname: Jiguet
mesh_terms: D000349:Africa; D000818:Animals; D001208:Asia; D045303:Cytochromes b / Q000235:genetics; D004272:DNA, Mitochondrial / Q000235:genetics; D003710:Demography; D005060:Europe; D050259:Genes, Mitochondrial; D014644:Genetic Variation; D005843:Geography; D015999:Multivariate Analysis; D010802:Phylogeny; D025341:Principal Component Analysis; D020308:Songbirds / Q000033:anatomy & histology / Q000145:classification* / Q000235:genetics*
chemical_list: D004272:DNA, Mitochondrial; D045303:Cytochromes b
keywords: Acrocephalus baeticatus; Acrocephalus scirpaceus; Cryptic species; Cyt b gene; Dating; Demographic analysis