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Traffic noise reduces foraging efficiency in wild owls

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Title: Traffic noise reduces foraging efficiency in wild owls
Authors: Senzaki, Masayuki Browse this author
Yamaura, Yuichi Browse this author →KAKEN DB
Francis, Clinton D. Browse this author
Nakamura, Futoshi Browse this author →KAKEN DB
Issue Date: 18-Aug-2016
Publisher: Nature Publishing Group
Journal Title: Scientific reports
Volume: 6
Start Page: 30602
Publisher DOI: 10.1038/srep30602
Abstract: Anthropogenic noise has been increasing globally. Laboratory experiments suggest that noise disrupts foraging behavior across a range of species, but to reveal the full impacts of noise, we must examine the impacts of noise on foraging behavior among species in the wild. Owls are widespread nocturnal top predators and use prey rustling sounds for localizing prey when hunting. We conducted field experiments to examine the effect of traffic noise on owls' ability to detect prey. Results suggest that foraging efficiency declines with increasing traffic noise levels due to acoustic masking and/or distraction and aversion to traffic noise. Moreover, we estimate that effects of traffic noise on owls' ability to detect prey reach >120 m from a road, which is larger than the distance estimated from captive studies with bats. Our study provides the first evidence that noise reduces foraging efficiency in wild animals, and highlights the possible pervasive impacts of noise
Type: article
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 先崎 理之

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