globalchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0128789
论文题名:
Identification of Prey Captures in Australian Fur Seals (Arctocephalus pusillus doriferus) Using Head-Mounted Accelerometers: Field Validation with Animal-Borne Video Cameras
作者: Beth L. Volpov; Andrew J. Hoskins; Brian C. Battaile; Morgane Viviant; Kathryn E. Wheatley; Greg Marshall; Kyler Abernathy; John P. Y. Arnould
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2015
发表日期: 2015-6-24
卷: 10, 期:6
语种: 英语
英文关键词: Antigen-presenting cells ; Accelerometers ; Predation ; Foraging ; Seals ; Cameras ; Animal behavior ; Data processing
英文摘要: This study investigated prey captures in free-ranging adult female Australian fur seals (Arctocephalus pusillus doriferus) using head-mounted 3-axis accelerometers and animal-borne video cameras. Acceleration data was used to identify individual attempted prey captures (APC), and video data were used to independently verify APC and prey types. Results demonstrated that head-mounted accelerometers could detect individual APC but were unable to distinguish among prey types (fish, cephalopod, stingray) or between successful captures and unsuccessful capture attempts. Mean detection rate (true positive rate) on individual animals in the testing subset ranged from 67-100%, and mean detection on the testing subset averaged across 4 animals ranged from 82-97%. Mean False positive (FP) rate ranged from 15-67% individually in the testing subset, and 26-59% averaged across 4 animals. Surge and sway had significantly greater detection rates, but also conversely greater FP rates compared to heave. Video data also indicated that some head movements recorded by the accelerometers were unrelated to APC and that a peak in acceleration variance did not always equate to an individual prey item. The results of the present study indicate that head-mounted accelerometers provide a complementary tool for investigating foraging behaviour in pinnipeds, but that detection and FP correction factors need to be applied for reliable field application.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0128789&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/21559
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: Deakin University, School of Life and Environmental Sciences, Burwood, Victoria, Australia;Deakin University, School of Life and Environmental Sciences, Burwood, Victoria, Australia;University of British Columbia, Marine Mammal Research Unit, Fisheries Centre, Vancouver, BC, Canada;Centre d’Etudes Biologiques de Chize', Centre National de la Recherche Scientifique, Villiers en Bois, France;Deakin University, School of Life and Environmental Sciences, Burwood, Victoria, Australia;National Geographic, Remote Imaging Department, Washington, DC, United States of America;National Geographic, Remote Imaging Department, Washington, DC, United States of America;Deakin University, School of Life and Environmental Sciences, Burwood, Victoria, Australia

Recommended Citation:
Beth L. Volpov,Andrew J. Hoskins,Brian C. Battaile,et al. Identification of Prey Captures in Australian Fur Seals (Arctocephalus pusillus doriferus) Using Head-Mounted Accelerometers: Field Validation with Animal-Borne Video Cameras[J]. PLOS ONE,2015-01-01,10(6)
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