Opposite companion effect on flight initiation distance in sympatric species: plateau pika (Ochotona curzoniae) and White-rumped Snowfinch (Onychostruthus taczanowskii)

	Opposite companion effect on flight initiation distance in sympatric species: plateau pika (Ochotona curzoniae) and White-rumped Snowfinch (Onychostruthus taczanowskii)
	Zhang, He 1,2; Li, Wenjing 1,2; Hu, Yanping 1; Zhang, Yanming 1
刊名	canadian journal of zoology
	2016-02-01
卷号	94 期号:2 页码:109-114
关键词	flight initiation distance multispecies interaction escape strategy plateau pika Ochotona curzoniae White-rumped Snowfinch Onychostruthus taczanowskii
英文摘要	there are many factors influencing prey's risk perception and escape decision during predator-prey encounters. the distance at which animals move away from perceived danger (often quantified as flight initiation distance or fid) has been used by behavioral ecologists to understand the economics of antipredator behavior. using general linear models, we investigated escape decision-making processes in plateau pika (ochotona curzoniae (hodgson, 1858)) and white-rumped snowfinch (onychostruthus taczanowskii (prjevalsky, 1876), formerly known as montifringilla taczanowskii przewalski, 1876) together and we found that (i) there are significant positive correlations between starting distance and fid in both species; (ii) pika escapes at a longer distance from an approaching intruder when it is far from its burrow; (iii) foraging animals tolerate closer distances than watching ones, both in pikas and in snowfinches; (iv) conspecifics seem to have no effect on pikas' escaping behavior, while the appearance of snowfinches dramatically decreases the fid of pikas. on the contrary, conspecifics significantly decrease the fid of snowfinches, while the presence of pikas has no effects. these findings provide new evidence, which are consistent with optimal escape theory. these novel results in multispecies interactions prompt us to pay attention to the potential relationship between pikas and snowfinches, as well as the "bird-pika in one hole" phenomenon.
WOS标题词	science & technology ; life sciences & biomedicine
类目[WOS]	zoology
研究领域[WOS]	zoology
关键词[WOS]	predation risk ; starting distance ; limited attention ; human disturbance ; tibetan plateau ; escape behavior ; responses ; birds ; vigilance ; patterns
收录类别	SCI
语种	英语
WOS记录号	WOS:000375951900004
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/5739]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
作者单位	1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, He,Li, Wenjing,Hu, Yanping,et al. Opposite companion effect on flight initiation distance in sympatric species: plateau pika (Ochotona curzoniae) and White-rumped Snowfinch (Onychostruthus taczanowskii)[J]. canadian journal of zoology,2016,94(2):109-114.
APA	Zhang, He,Li, Wenjing,Hu, Yanping,&Zhang, Yanming.(2016).Opposite companion effect on flight initiation distance in sympatric species: plateau pika (Ochotona curzoniae) and White-rumped Snowfinch (Onychostruthus taczanowskii).canadian journal of zoology,94(2),109-114.
MLA	Zhang, He,et al."Opposite companion effect on flight initiation distance in sympatric species: plateau pika (Ochotona curzoniae) and White-rumped Snowfinch (Onychostruthus taczanowskii)".canadian journal of zoology 94.2(2016):109-114.