Integrating orientation mechanisms, adrenocortical activity, and endurance flight in vagrancy behaviour.

ABSTRACT: Avian migratory processes are typically precisely oriented, yet vagrants are frequently recorded outside their normal range. Wind displaced vagrants often show corrective behaviour, and as an appropriate response is likely adaptive. We investigated the physiological response to vagrancy in passerines. Activation of the emergency life-history stage (ELHS), assessed by high baseline plasma corticosterone, is a potential mechanism to elicit compensatory behaviour in response to challenges resulting from navigational error, coupled with response to fuel load and flight. We compared circulating plasma corticosterone concentrations and body condition between three migratory groups in autumn: (1) wind displaced southwest (SW) vagrants and (2) long range southeast (SE) vagrants on the remote Faroe

SUBMITTER: Snell KRS 

PROVIDER: S-EPMC9772197 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature