Pedalling downhill and freewheeling up; a penguin perspective on foraging

Aquatic Biology

关键词: Magellanic penguin;    Spheniscus magellanicus;    Buoyancy;    Energy expenditure;    Prey capture;    Speed;    Depth;    Foraging;   

DOI  :  10.3354/ab00230

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: Depth-dependent buoyancy resulting from the compression of body-associated air is a major force modulating energy expenditure in diving seabirds, yet quantification of its effects in free-living animals is problematic. Between November 2006 and December 2008, we used multiple channel loggers (daily diaries [DDs]); recording triaxial acceleration, depth and speed, during foraging of 34 Magellanic penguins

【 授权许可】

CC BY