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Hokkaido University Collection of Scholarly and Academic Papers >
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From the Eye of the Albatrosses: A Bird-Borne Camera Shows an Association between Albatrosses and a Killer Whale in the Southern Ocean
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| Title: | From the Eye of the Albatrosses: A Bird-Borne Camera Shows an Association between Albatrosses and a Killer Whale in the Southern Ocean |
| Authors: | Sakamoto, Kentaro Q. Browse this author →KAKEN DB | | Takahashi, Akinori Browse this author | | Iwata, Takashi Browse this author | | Trathan, Philip N. Browse this author |
| Issue Date: | 7-Oct-2009 |
| Publisher: | Public Library of Science |
| Journal Title: | PLoS One |
| Volume: | 4 |
| Issue: | 10 |
| Start Page: | e7322 |
| Publisher DOI: | 10.1371/journal.pone.0007322 |
| Abstract: | Albatrosses fly many hundreds of kilometers across the open ocean to find and feed upon their prey. Despite the growing number of studies concerning their foraging behaviour, relatively little is known about how albatrosses actually locate their prey. Here, we present our results from the first deployments of a combined animal-borne camera and depth data logger on free-ranging black-browed albatrosses (Thalassarche melanophrys). The still images recorded from these cameras showed that some albatrosses actively followed a killer whale (Orcinus orca), possibly to feed on food scraps left by this diving predator. The camera images together with the depth profiles showed that the birds dived only occasionally, but that they actively dived when other birds or the killer whale were present. This association with diving predators or other birds may partially explain how albatrosses find their prey more efficiently in the apparently 'featureless' ocean, with a minimal requirement for energetically costly diving or landing activities. |
| Rights: | http://creativecommons.org/licenses/by/2.5/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/42565 |
| Appears in Collections: | 獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 坂本 健太郎
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