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Character Variation and Evolution of Sibling Species in the Empidonax difficilis-flavescens Complex (Aves: Tyrannidae)by Ned K. Johnson

โœ Scribed by Review by: Dennis M. Power

Book ID
124652528
Publisher
University of California Press
Year
1981
Tongue
English
Weight
148 KB
Volume
98
Category
Article
ISSN
0004-8038

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โœ Carla Cicero; Ned K Johnson ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 170 KB

We sequenced mitochondrial DNA from four protein-coding genes for 26 taxa to test W. E. Lanyon's hypothesis of intergeneric relationships and character evolution in the Empidonax group of tyrant flycatchers. Three genera in this group (Empidonax, Contopus, and Sayornis) successfully occupy north tem