Time-varying effects of local weather on behavior and probability of breeding deferral in two Arctic-nesting goose populations.

ABSTRACT: Arctic-nesting geese face energetic challenges during spring migration, including ecological barriers and weather conditions (e.g., precipitation and temperature), which in long-lived species can lead to a trade-off to defer reproduction in favor of greater survival. We used GPS location and acceleration data collected from 35 greater white-fronted geese of the North American midcontinent and Greenland populations at spring migration stopovers, and novel applications of Bayesian dynamic linear models to test daily effects of minimum temperature and precipitation on energy expenditure (i.e., overall dynamic body acceleration, ODBA) and proportion of time spent feeding (PTF), then examined the daily and additive importance of ODBA and PTF on probability of breeding deferral using stochastic

SUBMITTER: Cunningham SA 

PROVIDER: S-EPMC9944342 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature