Site fidelity increases reproductive success by increasing foraging efficiency in a marine predator

Ginger Rebstock, Briana Abrahms & Dee Boersma
Seabirds must find food efficiently in the dynamic ocean environment to succeed at raising chicks. In theory, site familiarity, gained by prior experience in a place, should increase foraging efficiency when prey is predictable. For non-flying species like penguins, prior experience may be the only source of information on prey location. Penguins should therefore exhibit high foraging-site fidelity, particularly when prey is more predictable. Using movement data from 180 Magellanic penguins Spheniscus magellanicus tracked during...
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