Document Type
Article
Publication Date
2-2008
Publication Title
Condor
Publisher
Cooper Ornithological Society
Volume
110
Issue
1
First page number:
170
Last page number:
177
Abstract
The Great-tailed Grackle (Quiscalus mexicanus) and Boat-tailed Grackle (Q. major) are sister species that have expanded their ranges during historical times. This expansion has created an area of sympatry between these species in Texas and Louisiana, and between distinctive Great-tailed Grackle subspecies in the southwestern United States and northern Mexico. We investigated the evolutionary histories of both species using mitochondrial DNA sequence data and modern phylogenetic methods. Our results reveal genetic structure within Great-tailed, but not Boat-tailed Grackles. Great-tailed Grackles are separated into two clades, but range expansion in the north has led to secondary contact between them. Boat-tailed Grackles are monophyletic and are embedded within the Great-tailed Grackle assemblage, rendering the latter paraphyletic. These results reveal a complex phylogeographic pattern caused by recent range expansion and secondary contact of once allopatric units.
Keywords
Great-tailed Grackle; Molecular genetics; Phylogeography; Phylogeny; Quiscalus mexicanus
Controlled Subject
Bird populations--Research; Grackles; Molecular genetics;
Disciplines
Evolution | Molecular Genetics | Ornithology | Population Biology
File Format
File Size
1400 KB
Language
English
Permissions
Copyright Cooper Ornithological Society, used with permission.
Rights
IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/
Repository Citation
DaCosta, J. M.,
Wehtje, W.,
Klicka, J.
(2008).
Historic genetic structuring and paraphyly within the Great-tailed Grackle.
Condor, 110(1),
170-177.
Available at:
https://digitalscholarship.unlv.edu/hrc_ornithology/16
Included in
Evolution Commons, Molecular Genetics Commons, Ornithology Commons, Population Biology Commons