Territorial breakdown of black-capped chickadees, Poecile atricapillus, in disturbed habitats?
Article Abstract:
The hypothesis that in suboptimal habitats, the cost of defense might be prohibitively large compared to the associated benefits, and territorial behavior might be expected to decline is tested in a population of black-capped chickadees breeding in adjacent habitats. Results suggest that the quality of the disturbed habitat might be sufficiently low so as to make normal levels of exclusive defense cost inefficient.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2004
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Song repertoire evolution and acoustic divergence in a population of black-capped chickadees, poecile atricapillus
Article Abstract:
The singing behavior of populations of black-capped chickadees in Fort Collins, Colorado that represents the apparent evolution of a repertoire of song types is described. The findings indicate that social pressures exist in black-capped chickadees that favor individual birds that sound similar to other conspecifics.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2004
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Photoperiodic regulation of food storing and hippocampus volume in black-capped chickadees, Poecile articapillus
Article Abstract:
The photoperiodic regulation of food storing and hippocampus volume in black-capped chickadees is studied. The results indicate that long days inhibit storing regardless of gonadal condition.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2003
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