INVESTIGADORES
LAMMERTINK Jeroen Martjan
artículos
Título:
Mid-Pleistocene divergence of Cuban and North American ivory-billed woodpeckers
Autor/es:
FLEISCHER RC; KIRCHMAN JJ; DUMBACHER JP; BEVIER L; DOVE C; ROTZEL NC; EDWARDS SV; LAMMERTINK, M.; MIGLIA KJ; MOORE WS
Revista:
BIOLOGY LETTERS
Editorial:
ROYAL SOC
Referencias:
Año: 2006 vol. 2 p. 466 - 469
ISSN:
1744-9561
Resumen:
We used ancient DNA analysis of seven museum specimens of the endangered
North American ivory-billed woodpecker (Campephilus principalis) and
three specimens of the species from Cuba to document their degree of
differentiation and their relationships to other Campephilus
woodpeckers. Analysis of these mtDNA sequences reveals that the Cuban
and North American ivory bills, along with the imperial woodpecker
(Campephilus imperialis) of Mexico, are a monophyletic group and are
roughly equidistant genetically, suggesting each lineage may be a
separate species. Application of both internal and external rate
calibrations indicates that the three lineages split more than one
million years ago, in the Mid-Pleistocene. We thus can exclude the
hypothesis that Native Americans introduced North American ivory-billed
woodpeckers to Cuba. Our sequences of all three woodpeckers also provide
an important DNA barcoding resource for identification of non-invasive
samples or remains of these critically endangered and charismatic
woodpeckers.