| | Species limits in Olive-backed Foliage-gleaners (Automolus: Furnariidae).: An article from: Wilson Bulletin |  | Author: Kevin J. Zimmer
Brand: The Gale Group
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ASIN: B0008FMZ8M
Publication Date: March 1, 2002
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This digital document is an article from Wilson Bulletin, published by Wilson Ornithological Society on March 1, 2002. The length of the article is 8902 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: New information on the vocalizations and behavior of populations of the Olive-backed Foliagegleaner (Automolus infuscatus), along with analysis of biometric and plumage characters, reveal that it actually consists of at least two biological species: a form that is restricted to southeastern Amazonia, south of the Amazon and east of the Rio Madeira; and a group that occupies much of the remainder of humid lowland forest in Amazonia and the Guianan region. The southeastern form, although cryptically similar morphologically to other southern Amazonian subspecies of Automolus infuscatus, is highly differentiated in all vocal characters. Its distribution overlaps the Rondonia, Para, and Belem centers of endemism. The remainder of the populations currently considered part of the infuscatus group are further differentiated into two subgroups: a northern Guianan group and a southern-western group, the member taxa of which are weakly differentiated from one another, but which differ from members of the othe r group in plumage, biometric, and vocal characters. The significance of these differences with respect to species limits may depend on the species concept used. Current evidence would support recognition of the two groups as separate phylogenetic species in addition to the southeastern species, but is considered insufficient to support recognition of more than two species under a biological species concept.
Citation Details
Title: Species limits in Olive-backed Foliage-gleaners (Automolus: Furnariidae).
Author: Kevin J. Zimmer
Publication: Wilson Bulletin (Refereed)
Date: March 1, 2002
Publisher: Wilson Ornithological Society
Volume: 114 Issue: 1 Page: 20(18)
Distributed by Thomson Gale
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