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Testosterone in tropical birds: effects of environmental and social factors.

Abstract:

Previous investigations suggest that male tropical birds have lower plasma testosterone concentrations than northern latitude species. To test whether this generalization is valid, we analyzed all currently available plasma testosterone data of tropical birds. We focused on peak breeding testosterone levels using phylogenetic and conventional statistics. Explanatory variables considered were social mating system, type of territoriality, breeding season length, and altitude. On average, tropic...

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Publication status:
Published

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Publisher copy:
10.1086/422856

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Institution:
University of Oxford
Division:
MPLS
Department:
Zoology
Role:
Author
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Journal:
American naturalist
Volume:
164
Issue:
3
Pages:
327-334
Publication date:
2004-09-01
DOI:
EISSN:
1537-5323
ISSN:
0003-0147
Source identifiers:
130744
Language:
English
Keywords:
Pubs id:
pubs:130744
UUID:
uuid:0b2dc773-5c86-4a69-bc10-46c2de3c6979
Local pid:
pubs:130744
Deposit date:
2013-11-16

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