A year in the life of a North Atlantic seabird: behavioural and energetic adjustments during the annual cycle.

ABSTRACT: During their annual cycles, animals face a series of energetic challenges as they prioritise different life history events by engaging in temporally and potentially spatially segregated reproductive and non-breeding periods. Investigating behaviour and energy use across these periods is fundamental to understanding how animals survive the changing conditions associated with annual cycles. We estimated year-round activity budgets, energy expenditure, location, colony attendance and foraging behaviour for surviving individuals from a population of common guillemots Uria aalge. Despite the potential constraints of reduced day lengths and sea surface temperatures in winter, guillemots managed their energy expenditure throughout the year. Values were high prior to and during the breeding season

SUBMITTER: Dunn RE 

PROVIDER: S-EPMC7138806 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature