Acute exogenous corticosterone treatments have few effects on courtship and pair bonding in zebra finches
| Autor: | Amy Scalera, Michelle L. Tomaszycki |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Male
0106 biological sciences endocrine system medicine.medical_specialty animal structures media_common.quotation_subject Biology 010603 evolutionary biology 01 natural sciences Fight-or-flight response Courtship Sexual Behavior Animal 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Endocrinology Corticosterone Internal medicine medicine Animals Mating Zebra finch media_common Courtship display Pair bond chemistry Mate choice behavior and behavior mechanisms Female Animal Science and Zoology Finches hormones hormone substitutes and hormone antagonists 030217 neurology & neurosurgery |
| Zdroj: | General and Comparative Endocrinology. 268:121-127 |
| ISSN: | 0016-6480 |
| Popis: | Stress impacts social relationships. In turn, social relationships buffer the stress response in some species. Studies that have investigated the role of corticosterone (CORT) on courtship, mate choice, mating, and pairing have found mixed results. We therefore tested the role of CORT in these steps of the pairing process in the monogamous zebra finch. Male and female zebra finches received either one of 2 doses of corticosterone (CORT, 10 μg and 20 μg, referred to as low and high dose) or a vehicle control (peanut oil). Subjects were then given the opportunity to pair in mixed sex aviaries. Courtship and pair bonding behaviors were observed over 3 days. Overall, zebra finches of both sexes were equally likely to pair or not pair regardless of treatment, although a high dose of CORT increased the latency to form a pair bond. There were no effects of CORT on courtship behavior in either sex, though the low dose increased undirected (non-courtship) singing in males relative to the high dose. Animals treated with CORT, regardless of dose, engaged in fewer copulations than did control animals. When we examined pairing behaviors, we found a decrease in co-nesting in low dose animals. Our results suggest that acute CORT has few effects on pair bonding, suggesting species-specific effects of CORT on behavior. |
| Databáze: | OpenAIRE |
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