干旱区生态环境知识资源中心(Arid): Relative tail length correlates with body condition in male but not in female crowned leafnose snakes (Lytorhynchus diadema)

Arid

DOI	10.1038/s41598-020-61168-y
	Relative tail length correlates with body condition in male but not in female crowned leafnose snakes (Lytorhynchus diadema)
	Sivan, Jaim; Hadad, Shlomo; Tesler, Itay; Rosenstrauch, Avi; Degen, Abraham Allan; Kam, Michael
通讯作者	Kam, M
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2020
卷号	10 期号:1
英文摘要	Reproductive success is the ultimate measure of individual quality; however, it is difficult to determine in free-living animals. Therefore, indirect measures that are related to reproduction are generally employed. In snakes, males typically possess longer tails than females and this sexual size dimorphism in tail length (TL) has generally been attributed to the importance of the tail in mating and reproduction. Thus, intra-sexual differences in tail length, specifically within males, were hypothesized to reflect individual quality. We used a body condition index (BCI) as a measure of quality in snakes and predicted that tail length would be correlated with BCI in males. We tested our prediction by determining BCI in the free-ranging adult male and female crowned leafnose snake (Lytorhynchus diadema), a colubrid species that inhabits mainly desert sand dunes. The relative TL was correlated positively and significantly to BCI in males (F-1,F-131 = 11.05; r(2) (adj) = 0.07; P < 0.01) but not in females, thus supporting our prediction. This is the first time that the relationship between TL and body condition was tested in a free-ranging species. In addition, sexual size dimorphism of TL increased intra-specifically with body size, which was also found in interspecific analyses following Rensch's rule.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000563316000024
WOS关键词	SEXUAL SIZE DIMORPHISM ; VIPER CERASTES-VIPERA ; INDIVIDUAL QUALITY ; EVOLUTION ; SELECTION ; REPRODUCTION ; ALLOMETRY ; CORTICOSTERONE ; REGRESSION ; RESIDUALS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
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/2XILL650/325851
作者单位	[Sivan, Jaim; Rosenstrauch, Avi] Achva Acad Coll, Dept Life Sci, IL-79800 Mobile Post Shikmim, Israel; [Hadad, Shlomo; Tesler, Itay] Negev Zoo, POB 4033, Beer Sheva, Israel; [Degen, Abraham Allan; Kam, Michael] Ben Gurion Univ Negev, Inst Desert Res, Wyler Dept Dryland Agr, Desert Anim Adaptat & Husb, IL-8410500 Beer Sheva, Israel
推荐引用方式 GB/T 7714	Sivan, Jaim,Hadad, Shlomo,Tesler, Itay,et al. Relative tail length correlates with body condition in male but not in female crowned leafnose snakes (Lytorhynchus diadema)[J]. Ben-Gurion University of the Negev,2020,10(1).
APA	Sivan, Jaim,Hadad, Shlomo,Tesler, Itay,Rosenstrauch, Avi,Degen, Abraham Allan,&Kam, Michael.(2020).Relative tail length correlates with body condition in male but not in female crowned leafnose snakes (Lytorhynchus diadema).SCIENTIFIC REPORTS,10(1).
MLA	Sivan, Jaim,et al."Relative tail length correlates with body condition in male but not in female crowned leafnose snakes (Lytorhynchus diadema)".SCIENTIFIC REPORTS 10.1(2020).