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Hybridisation between great reed warblers Acrocephalus arundinaceus and clamorous reed warblers A. stentoreus: morphological and molecular evidence.

In English

Författare

Summary, in English

We present morphological and molecular evidence of the occurrence of hybrids between great reed warblers Acrocephalus arundinaceus and clamorous reed warblers A. stentoreus in Kazakhstan where both species breed. Three males and one female of 249 examined individuals had wing characteristics that were intermediate between the parental species. Molecular analyses of a nuclear microsatellite locus and a mitochondria) gene confirmed that these four individuals were hybrids: genetic material came from both parental species. Three hybrids carried clamorous reed warbler mitochondria and one carried great reed warbler mitochondria. Our finding does not support hypotheses suggesting that hybridisation occurs as a last resort when conspecific mates are rare, because both species were common in the area. Instead, we suggest that hybridisation might have resulted from mistakes in mate recognition in general and/or that the highly variable song of male great reed warblers might have acted as a supernormal mate choice stimulus for female clamorous reed warblers.

Publiceringsår

2003

Språk

Engelska

Sidor

145-151

Publikation/Tidskrift/Serie

Avian Science

Volym

3

Issue

2-3

Dokumenttyp

Artikel i tidskrift

Förlag

European Ornithologists' Union

Ämne

  • Biological Sciences

Status

Published

Projekt

  • Long-term study of great reed warblers

Forskningsgrupp

  • Molecular Ecology and Evolution Lab

ISBN/ISSN/Övrigt

  • ISSN: 1424-8743