干旱区生态环境知识资源中心(Arid): Sexual dichromatisation and sexual differences in hunting behavior and dietary intake in a free-ranging small viperid snake, Cerastes vipera

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DOI	10.1016/j.beproc.2019.103960
	Sexual dichromatisation and sexual differences in hunting behavior and dietary intake in a free-ranging small viperid snake, Cerastes vipera
	Tesler, Itay; Sivan, Jaim; Rosenstrauch, Avi; Horesh, Sefi J. A.; Degen, A. Allan; Kam, Michael
通讯作者	Kam, M (corresponding author), Ben Gurion Univ Negev, Inst Desert Res, Wyler Dept Dryland Agr, Desert Anim Adaptat & Husb, IL-84105 Beer Sheva, Israel.
来源期刊	BEHAVIOURAL PROCESSES
ISSN	0376-6357
EISSN	1872-8308
出版年	2019
卷号	168
英文摘要	The tip of the tail in female Cerastes vipera, a small viperid snake, is black and conspicuous, whereas that of the male is not. We tested the hypothesis, albeit indirectly, that this sexual dimorphic chromatisation is related to caudal luring, a feeding mimicry hunting strategy. C. vipera can hunt nocturnally-active lizards only via sit-andwait ambush and, consequently, we predicted that females would use caudal luring more often than males and that the proportion of nocturnal prey items in the diet of females would be higher than in males. Our hypothesis was supported as: 1) only females demonstrated caudal luring towards nocturnally-active lizards and more than 85% did so, whereas none of the males demonstrated such behavior; and 2) females consumed a significantly higher proportion (15/40 vs 4/27) of nocturnally-active lizards than did males. We concluded that sexual dichromatisation in C. vipera is associated with hunting strategy that results in different hunting behavior and different dietary intake between sexes. These novel findings: 1) provide a functional explanation for the black tail of female C. vipera; and 2) suggest different evolutionary driving forces between sexes and, consequently, different ecological impacts of male and female C. vipera on lizard populations.
英文关键词	Hunting strategy Caudal luring Feeding mimicry Sexual dichromatism Sit-and-wait ambush Cerastes vipera Diet composition
类型	Article
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000519224400015
WOS关键词	SAHARAN SAND VIPERS ; AGGRESSIVE MIMICRY ; CROTALUS-CERASTES ; BODY CONDITION ; DIMORPHISM ; RATTLESNAKE ; SERPENTES ; EVOLUTION ; DESERT ; REPRODUCTION
WOS类目	Psychology, Biological ; Behavioral Sciences ; Zoology
WOS研究方向	Psychology ; Behavioral Sciences ; Zoology
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369786
作者单位	[Tesler, Itay; Degen, A. Allan; Kam, Michael] Ben Gurion Univ Negev, Inst Desert Res, Wyler Dept Dryland Agr, Desert Anim Adaptat & Husb, IL-84105 Beer Sheva, Israel; [Tesler, Itay; Horesh, Sefi J. A.] Negev Zoo, POB 4033, Beer Sheva, Israel; [Sivan, Jaim; Rosenstrauch, Avi] Achva Acad Coll, Dept Life Sci, IL-79800 Mobile Post Shikmim, Israel; [Sivan, Jaim] Ben Gurion Univ Negev, Dept Life Sci, IL-84105 Beer Sheva, Israel
推荐引用方式 GB/T 7714	Tesler, Itay,Sivan, Jaim,Rosenstrauch, Avi,et al. Sexual dichromatisation and sexual differences in hunting behavior and dietary intake in a free-ranging small viperid snake, Cerastes vipera[J]. Ben-Gurion University of the Negev,2019,168.
APA	Tesler, Itay,Sivan, Jaim,Rosenstrauch, Avi,Horesh, Sefi J. A.,Degen, A. Allan,&Kam, Michael.(2019).Sexual dichromatisation and sexual differences in hunting behavior and dietary intake in a free-ranging small viperid snake, Cerastes vipera.BEHAVIOURAL PROCESSES,168.
MLA	Tesler, Itay,et al."Sexual dichromatisation and sexual differences in hunting behavior and dietary intake in a free-ranging small viperid snake, Cerastes vipera".BEHAVIOURAL PROCESSES 168(2019).