Phylogeography of the Black-tailed Godwit Limosa limosa: substructuring revealed by mtDNA control region sequences
2009 (English)In: Journal of Ornithology = Journal fur Ornithologie, ISSN 0021-8375, E-ISSN 1439-0361, Vol. 150, no 1, 45-53 p.Article in journal (Refereed) Published
Black-tailed (Limosa limosa) and Hudsonian Godwits (L. haemastica) are sometimes described as a superspecies. The Black-tailed Godwit is further split into three subspecies on the basis of morphological differences ( L. l. limosa, L. l. islandica and L. l. melanuroides). We studied variation in partial mtDNA control region sequences among Black-tailed and Hudsonian Godwits which showed 5% divergence. Black-tailed and Hudsonian Godwits were thus clearly differentiated and the separate species status for the two taxa is validated. All three subspecies described for the Black-tailed Godwit had unique haplotypes but the genetic distances were small (0.3-0.6%). Despite small genetic differences we could not detect any substantial gene flow between any of the subspecies as haplotypes were private to each subspecies. Thus, genetic variation within Black-tailed Godwits showed a clear geographic structure. We found a high proportion of rare private haplotypes in three fringe populations of the nominate subspecies of the Black-tailed Godwit (L. l. limosa) where godwits breed in low numbers, but no genetic variation at all in a sample from the Netherlands where godwits are abundant. This suggests that Dutch Godwits may have been affected by a founder effect.
Place, publisher, year, edition, pages
2009. Vol. 150, no 1, 45-53 p.
Gene flow, Population structure, Phylogeography, mtDNA, Black-tailed Godwit, Hudsonian Godwit
IdentifiersURN: urn:nbn:se:uu:diva-148790DOI: 10.1007/s10336-008-0316-8ISI: 000261424800005OAI: oai:DiVA.org:uu-148790DiVA: diva2:402943