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Pseudopodoces humilis, a misclassified terrestrial tit (Paridae) of the Tibetan Plateau: evolutionary consequences of shifting adaptive zones
Swedish Museum of Natural History, Research Division.
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2003 (English)In: Ibis, ISSN 0019-1019, E-ISSN 1474-919X, Vol. 145, no 2, 185-202 p.Article in journal (Refereed) Published
Abstract [en]

Pseudopodoces humilis (Hume's Ground-Jay) is a small passerine bird that inhabits the high rocky steppes of the Tibetan (Qinghai–Xizang) Plateau. Although it was long classified as a small species of ground jay (Podoces), two previous anatomical studies cast doubt on its assignment to the Corvidae (crows and jays). We studied the evolutionary relationships of Pseudopodoces using three independent datasets drawn from comparative osteology, the nuclear c-myc gene, and the mitochondrial cytochrome b gene. All three datasets agree on the placement of Pseudopodoces in the family Paridae (tits and chickadees). The cytochrome b data further suggest that Pseudopodoces may be closest to the Great Tit Parus major species group. Pseudopodoces is the only species of parid whose distribution is limited to treeless terrain. Its evolutionary relationships were long obscured by adaptations to open habitat, including pale, cryptic plumage; a long, decurved bill for probing in crevices among rocks or in the ground; and long legs for terrestrial locomotion. Despite these accommodations to a novel adaptive zone, its evolutionary affinity with the Paridae is clearly expressed in comparative osteology and genetics, and is supported by its habit of nesting in cavities.

Place, publisher, year, edition, pages
2003. Vol. 145, no 2, 185-202 p.
National Category
Biological Systematics Evolutionary Biology
Research subject
Diversity of life
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URN: urn:nbn:se:nrm:diva-552DOI: 10.1046/j.1474-919X.2003.00170.xOAI: oai:DiVA.org:nrm-552DiVA: diva2:735038
Available from: 2014-07-22 Created: 2014-07-22 Last updated: 2014-07-22Bibliographically approved

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Publisher's full texthttp://onlinelibrary.wiley.com/doi/10.1046/j.1474-919X.2003.00170.x/abstract

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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