Male morphs in tree lizards, Urosaurus ornatus, have different delayed hormonal responses to aggressive encounters
Article Abstract:
Steroid hormones are responsible for the hormonal responses to aggressive encounters in the two male morphs of tree lizards, Urosaurus ornatus. The two morphs are an aggressive, territorial morph and a less aggressive, non-territorial morph. The aggressive morphs have increased levels of corticosterone and decreased levels of testosterone when subjected to an encounter. The hormonal changes in the less aggressive morph influence the agonistic behavior in male-male interactions and the energy spent during these interactions.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
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Female mate attraction in ornate tree lizards, Urosaurus ornatus: A multivariate analysis
Article Abstract:
Results of a mate choice experiment with Urosaurus ornatus are presented in which two male lizards differing in morphology, color and behavior were given an opportunity to attract a female lizard. A multivariate analysis showed that mate attraction was related to multiple cues from a male's phenotype, body mass and headsize as well as body and tail coloration all contributed to mate attraction.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2005
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The role of testosterone in male downy woodpeckers in winter home range use, mate interactions and female foraging behaviour
Article Abstract:
The results of experiments investigating the impact of testosterone on the territorial and mate selection behavior of male downy woodpeckers (Picoides pubescens) are discusssed. The effect of the increased levels of testosterone in male downy woodpeckers on the foraging behaviour of females is studied.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2006
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