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EIA Database

Searching for prey in a three-dimensional environment: hierarchical movements enhance foraging success in northern elephant seals

2016
Open Access Peer Reviewed Publication

Functional Ecology

Adachi, T., D. P. Costa, P. W. Robinson, S. H. Peterson, M. Yamamichi, Y. Naito, and A. Takahashi

1. Foraging theory predicts that predators adjust their movements according to the spatial distribution of prey. Since prey is often patchily distributed, area-restricted search (ARS) behaviour,...
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Keywords: Area-restricted search, Bio-logging, Foraging behaviour, Hierarchical patch system, Lévy walk, Marine predator, Scale-dependent movement, Three-dimensional movement

Vessel traffic disrupts the foraging behaviour of southern resident killer whales Orcinus orca.

2009
Open Access Peer Reviewed Publication

Endangered Species Research

Lusseau, D., Bain, D. E., Williams, R. and Smith, J. C.

Vessel traffic may have contributed to southern resident killer whales Orcinus orca becoming endangered. To determine the importance of this threat, we measured the behavior of...
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Keywords: Foraging behaviour, Killer whales, Vessel traffic