Skeletons and the genera of sparrows (Emberizinae)

Citation
Jd. Webster et Jr. Webster, Skeletons and the genera of sparrows (Emberizinae), AUK, 116(4), 1999, pp. 1054-1074
Citations number
63
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Animal Sciences
Journal title
AUK
ISSN journal
0004-8038 → ACNP
Volume
116
Issue
4
Year of publication
1999
Pages
1054 - 1074
Database
ISI
SICI code
0004-8038(199910)116:4<1054:SATGOS>2.0.ZU;2-E
Abstract
Based on comparisons of skeletons from 228 species of sparrows (Embelizinae ), we detected 24 characters that were useful for generic separations. Of t hese 19 quantitative characters were used in a detrended correspondence ana lysis (DCA) ordination. Presence or absence of a lacrimal bane, degree of i nflation of the squamosal area, length of the lateral process of the latero sphenoid, ratio of ulna length to femur length, length of the skull, and pr emaxilla length-to-width ratio were the most informative characters. The fi rst two axes of the DCA clearly grouped most genera. Based on our analysis of these skeletal characters, we recommend the following changes to the cla ssification of Paynter (1970): Sporophila obscure belongs in Tiaris; Enrber izoides ypiranganus is a valid species; Pselliophorus and Pezopetes should be lumped with Atlapetes; and Torreornis and Oriturus should be lumped with Aimophila. In addition, a different sequence of genera should be adopted. Two groups of genera are distinct: seedeaters and North American sparrows. A third group, South American grassland finches, overlaps with the first tw o groups.