Evolutionary Differentiation in Morphology, Vocalizations, and Allozymes Among Nomadic Sibling Species in the North American Red Crossbill (Loxia Curv
(Part of the UC Publications in Zoology Series)
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The highly variable North American red crossbill complex has presented one of the most controversial problems in avian systematics. Although crossbills wander nomadically and breed all year, they have not become homogenized in bill and body size. This study suggests that this crossbill complex contains several distinctive sibling species that breed sympatrically and show ecological differences.
Format:Paperback
Language:English
ISBN:0520097823
ISBN13:9780520097827
Release Date:August 1993
Publisher:University of California Press
Length:156 Pages
Weight:0.62 lbs.
Dimensions:0.3" x 7.0" x 10.0"
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