A TEST OF WHETHER HUMAN HANDLING CAUSES DEVELOPMENTAL OR HABITUATION EFFECTS ON THE HYPOTHALAMIC-PITUITARY-ADRENAL STRESS RESPONSE OF YOUNG AMERICAN KESTRELS (FALCO SPARVERIUS) By
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چکیده
............................................................................................................................ vi LIST OF TABLES ................................................................................................................... ix LIST OF FIGURES .................................................................................................................. x A TEST OF WHETHER HUMAN HANDLING CAUSES DEVELOPMENTAL OR HABITUATION EFFECTS ON THE HYPOTHALMIC-PITUATARY-ADRENAL STRESS RESPONSE OF YOUNG AMERICAN KESTRELS (FALCO SPARVERIUS) ......
منابع مشابه
The effects of neonatal handling on adrenocortical responsiveness, morphological development and corticosterone binding globulin in nestling American kestrels (Falco sparverius).
Early developmental experiences play an important role in development of the adult phenotype. We investigated the effects of neonatal handling on the hypothalamic-pituitary-adrenal axis in a free-living avian species, the American kestrel (Falco sparverius). In the handled group (H), kestrel chicks were handled for 15 min/day from hatching until 26 days of age, after which time blood samples we...
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How nestling birds respond to stressful situations may constitute an important survival component that has lasting developmental effects on the hypothalamic pituitary adrenal (HPA) axis. As birds are exposed to increasing amounts of potential anthropogenic stressors through land use change, understanding how these factors contribute to HPA development is important. We examined whether condition...
متن کاملBody condition and the adrenal stress response in captive American kestrel juveniles.
We examined the adrenal response to handling stress of birds in different body conditions. In order to affect the birds' body condition, young (73-d old) female American kestrels (Falco sparverius) were maintained for 6 wk on one of three diets: a control diet (fed ad lib.) and two calorically restricted diets. To invoke a stress response, we removed birds from their cages and took repeated blo...
متن کاملCorticosterone levels during post-natal development in captive American kestrels (Falco sparverius).
We investigated post-natal development of the adrenocortical stress-response system in captive American kestrels (Falco sparverius) by measurements of baseline and stress-induced levels of corticosterone at ages 10, 16, 22, and 28 days post-hatching. Baseline levels of corticosterone increased significantly during post-natal development and although chicks aged 10- and 16-days old exhibited com...
متن کاملPlasma corticosterone in nestling american kestrels: effects of age, handling stress, yolk androgens, and body condition.
The effects of age, handling-induced stress, yolk androgens, and body condition on plasma corticosterone levels were investigated in free-living nestling American kestrels, Falco sparverius, a semialtricial falcon species. In an observational study, corticosterone levels varied with age and handling time. Specifically, corticosterone was low until age 15 days and then rose from age 20 through 2...
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