Behavioural correlates of testosterone and seasonal changes of steroids in red-winged blackbirds
Article Abstract:
The correspondence between behavior and plasma testosterone level (T) and the seasonal changes in T and plasma corticosterone levels (B) in male red-winged blackbirds, Agelaius phoeniceus, were investigated. Findings showed that the frequency of aggressive encounters, sexual chases, epaulet exposure when singing and flights within the territory were positively related with T, indicating a direct role for circulating testosterone affecting male aggressive behavior.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Condition and androgen levels: are condition-dependent and testosterone-mediated traits two sides of the same coin?
Article Abstract:
Androgen levels and their condition dependence in male partridges are examined.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Evaluating residual tree patches as stepping stones and short-term refugia for red-legged frogs. The influence of ecological factors on detecting drumming ruffed grouse
- Abstracts: The earliest memories of life on Earth. Patterns of stress in crumpled sheets. Ice sheets and sea level
- Abstracts: Synergistic effects of substrate-induced conformational changes in phosphoglycerate kinase activation
- Abstracts: Insertional mutagenesis and rapid cloning of essential genes in zebrafish. A non-muscle myosin required for embryonic polarity in Caenorhabditis elegans
- Abstracts: Plant-microbial interactions. High rates of nitrification and nitrate turnover in undisturbed coniferous forests