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- Title
Integrating morphology, phylogeography, and ecological niche modeling to explore population differentiation in North African Common Chaffinches.
- Authors
Perktaş, Utku; Peterson, A.; Dyer, Dale
- Abstract
Diagnosing distinct evolutionary taxa requires careful assessment of genetic, morphological, ecological, and behavioral variation within and among populations. In this study, data on phenotype (mensural and plumage coloration), genotype (mitochondrial DNA control-region sequences), and distributional projections derived from ecological niche models, were used to investigate population differentiation of North African Common Chaffinches. Results showed substantial genetic variation among populations, mostly (~56 %) distributed between Libyan populations and other North African populations, rather than within populations. Isolation-by-distance analysis indicated severely restricted gene flow between populations. Historical demographic analyses indicate that population expansion began before the Last Glacial Maximum, which is consistent with ecological niche model paleoprojections; interestingly, differentiation of the Libyan population ( Fringilla coelebs harterti) apparently did not take place under the last glacial conditions. Hence, although its taxonomic status must await robust testing using multilocus DNA data, this population is an important element in the conservation of bird diversity in North Africa.
- Subjects
POPULATION differentiation; ECOLOGICAL niche; POPULATION genetics; MITOCHONDRIAL DNA; FRINGILLA; CHAFFINCHES
- Publication
Journal of Ornithology, 2017, Vol 158, Issue 1, p1
- ISSN
2193-7192
- Publication type
Article
- DOI
10.1007/s10336-016-1361-3