The driving forces behind female-female aggression and its fitness consequence in an Asian agamid lizard

doi:10.1007/s00265-019-2686-8

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 生物多样性与生态系统服务领域 > 中国科学院环境与应用微生物重点实验室

	The driving forces behind female-female aggression and its fitness consequence in an Asian agamid lizard
	Wu, Yayong 3; Whiting, Martin J.2; Fu, Jinzhong 1,3; Qi, Yin 3
刊名	BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
	2019
卷号	73 期号:6 页码:73
关键词	Female-female aggression Fitness Mate limitation Resource competition Reptile Phrynocephalus vlangalii
ISSN号	0340-5443
DOI	10.1007/s00265-019-2686-8
产权排序	1
文献子类	Article
英文摘要	Female-female aggression and its effect on fitness are poorly understood compared to male-male aggression. We quantified female-female aggression in the viviparous toad-headed agama, Phrynocephalus vlangalii, and tested the mate limitation and resource competition hypotheses, to explain the driving forces behind heightened female-female aggression. We established populations in outdoor enclosures and separately manipulated mate and food availability while quantifying aggressive interactions between known females. Female mass and offspring quantity and quality were monitored for 2years and used as an index of female fitness. Interestingly, female-female aggression was highest outside the mating season, when females were pregnant. Also, male availability did not significantly influence female-female aggression. Consequently, we found no evidence in support of the mate limitation hypothesis. Female-female aggression, however, was greatest during periods of low-food availability. Greater food availability did have positive fitness consequence for females: high-food treatment females were more likely to gain mass and give birth than females from the low-food treatment, and offspring from high-food treatment females were more likely to survive the first winter. However, we did have an effect of year: female mass was negatively associated with female-female aggression in year 1 but positively associated in year 2, although the association was not significant. The same pattern appeared in the association between offspring sprint speed and female-female aggression: higher levels of female-female aggression in year 1 were associated with slower offspring, while in year 2, higher female-female aggression was associated with faster offspring. Overall, our results demonstrate a link between female-female aggression and competition for resource (food) and highlight the potential importance of female aggressive behavior as a mechanism that influences female fitness.Significance statementMale-male contest competition has been a cornerstone of sexual selection theory for decades because dominant males can control more space and access to females. Conversely, female aggression is poorly understood and sometimes considered a paradox, especially in species lacking parental care. We tested whether female-female aggression in the viviparous lizard P. vlangalii is best explained by competition for males (mate limitation hypothesis) or competition over food (food limitation hypothesis). Interestingly, female aggression peaks after mating, while females are still pregnant. Heightened aggression at this time supports the food limitation hypothesis because any advantage females have in terms of access to resources will benefit offspring born into her home range. Likewise, access to additional food resources may improve female survival and future reproductive investment through greater energy storage.
学科主题	Animal Sciences
URL标识	查看原文
WOS关键词	SEXUAL SELECTION ; INTRASEXUAL COMPETITION ; TESTOSTERONE ; EVOLUTION ; BEHAVIOR ; SONGBIRD ; DIMORPHISM ; CARE
WOS研究方向	Behavioral Sciences ; Environmental Sciences & Ecology ; Zoology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000467390400002
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/30926]
专题	食品安全与环境治理领域_中国科学院环境与应用微生物重点实验室
通讯作者	Qi, Yin
作者单位	1.Univ Guelph, Dept Integrat Biol, Guelph, ON N1G 2W1, Canada 2.Macquarie Univ, Dept Biol Sci, Sydney, NSW 2109, Australia; 3.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China;
推荐引用方式 GB/T 7714	Wu, Yayong,Whiting, Martin J.,Fu, Jinzhong,et al. The driving forces behind female-female aggression and its fitness consequence in an Asian agamid lizard[J]. BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY,2019,73(6):73.
APA	Wu, Yayong,Whiting, Martin J.,Fu, Jinzhong,&Qi, Yin.(2019).The driving forces behind female-female aggression and its fitness consequence in an Asian agamid lizard.BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY,73(6),73.
MLA	Wu, Yayong,et al."The driving forces behind female-female aggression and its fitness consequence in an Asian agamid lizard".BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY 73.6(2019):73.