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DOI:	10.1371/journal.pone.0156464
论文题名:	Corkscrew Seals: Grey Seal (Halichoerus grypus) Infanticide and Cannibalism May Indicate the Cause of Spiral Lacerations in Seals
作者:	Andrew Brownlow; Joseph Onoufriou; Amanda Bishop; Nicholas Davison; Dave Thompson
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2016
发表日期:	2016-6-2
卷:	11, 期:6
语种:	英语
英文关键词:	Seals ; Predation ; Lesions ; Animal sexual behavior ; Fresh water ; Scotland ; Traumatic injury ; Skull
英文摘要:	Large numbers of dead seals with characteristic spiral lesions have been washing ashore around the North Atlantic over the past two decades. Interactions with ship propellers and shark predation have been suggested as the likely causal mechanisms. However, new evidence points towards a more likely candidate: grey seal predation. An adult male grey seal was observed and recorded catching, killing and eating five weaned grey seal pups over a period of one week on the Isle of May, Scotland. A further 9 carcasses found in the same area exhibited similar injuries. Post mortem analysis of lesions indicated the wound characteristics were similar to each other and in 12 of the 14 carcasses analysed, were indistinguishable from carcasses previously attributed to propeller interaction. We therefore propose that most of the seal carcasses displaying spiral lacerations in the UK are caused by grey seal predation. Cases in other locations should be re-evaluated using the scoring system presented here to identify whether grey seal predation is a major cause of mortality in phocid seals.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0156464&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/23321
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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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0156464.PDF（1030KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Scottish Marine Animal Stranding Scheme, SAC Veterinary Services Drummondhill, Stratherrick Road, Inverness, IV2 4JZ, United Kingdom;Sea Mammal Research Unit, University of St Andrews, St Andrews, Fife, KY16 8LB, United Kingdom;Durham University, School of Biology and Biomedical Sciences, Durham, DH1 3LE, United Kingdom;Scottish Marine Animal Stranding Scheme, SAC Veterinary Services Drummondhill, Stratherrick Road, Inverness, IV2 4JZ, United Kingdom;Sea Mammal Research Unit, University of St Andrews, St Andrews, Fife, KY16 8LB, United Kingdom

Recommended Citation:

Andrew Brownlow,Joseph Onoufriou,Amanda Bishop,et al. Corkscrew Seals: Grey Seal (Halichoerus grypus) Infanticide and Cannibalism May Indicate the Cause of Spiral Lacerations in Seals[J]. PLOS ONE,2016-01-01,11(6)

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