Is Spizella taverneri a species or subspecies?
Article Abstract:
A review of the classification of the subspecies, taverneri, of Brewer's Sparrow (Sizella breweri) is presented. It is argued that until reproductive isolation is proved the bird should keep subspecies status.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 2001
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The taxonomic rank of Spizella taverneri: a response to Mayr and Johnson
Article Abstract:
A review of the classification of Spizella taverneri and its relation to Brewer's Sparrow (Spizella breweri) is presented. It is argued that there is sufficient biological evidence to classify taverneri as a separate species.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 2001
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Refined colorimetry validates endangered subspecies of the Least Tern
Article Abstract:
The use of refined colorimetry has validated three North American subspecies of Least Tern, namely, Sterna antillarum antillarum, S. a. browni, and S. a. athalassos, contrary to the hypothesis that no significant differences on seven morphologic features have been determined among them. Seasonal differences were shown by four of nine color characters, while the sexes differed in lightness and hue of dorsum and hind neck. Conservationists must appreciate the validity of S. a. athalassos and S. a. browni, both of which have been classified as endangered.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1998
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