Kausik Banerjee , Chittaranjan V. Dave , Kartikeya Singh Chauhan , Shomen Mukherjee , Yadvendradev V. Jhala
{"title":"Activity of Asiatic lions in relation to activity of prey and kleptoparasitism","authors":"Kausik Banerjee , Chittaranjan V. Dave , Kartikeya Singh Chauhan , Shomen Mukherjee , Yadvendradev V. Jhala","doi":"10.1016/j.anbehav.2024.10.002","DOIUrl":null,"url":null,"abstract":"<div><div>Carnivores alter their activity to maximize individual fitness by increasing encounters with prey, reducing overlap with humans and minimizing opportunities for loss of kills to kleptoparasitism. We observed 16 radiocollared lions, <em>Panthera leo leo</em>, within the Gir landscape by continuous focal animal sampling for a period of 2–10 days in each session and studied their hunting and feeding patterns with respect to the activity patterns of their prey, chital and domestic livestock. Lions were mostly active during the night while most of the day was spent resting under cover, when temperatures and human activity were high. Activity of lions differed between the sexes but coincided with the activity of their prey. Feeding intervals and feeding bouts for lions were longer inside the protected area compared to multiuse landscapes outside it. Lions tended to feed longer on predated than scavenged carcasses. Livestock comprised the majority of the lions’ diet in the Gir landscape. We observed a low level of kleptoparasitism in the Asiatic lions compared with their counterparts in the Serengeti in Africa. Hunting by lionesses declined during the corresponding male activity period, possibly to minimize kleptoparasitism by male lions. We conclude that the hunting and feeding times of lions are adapted to maximize payoffs.</div></div>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6000,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Bio Materials","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0003347224002793","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, BIOMATERIALS","Score":null,"Total":0}
引用次数: 0
Abstract
Carnivores alter their activity to maximize individual fitness by increasing encounters with prey, reducing overlap with humans and minimizing opportunities for loss of kills to kleptoparasitism. We observed 16 radiocollared lions, Panthera leo leo, within the Gir landscape by continuous focal animal sampling for a period of 2–10 days in each session and studied their hunting and feeding patterns with respect to the activity patterns of their prey, chital and domestic livestock. Lions were mostly active during the night while most of the day was spent resting under cover, when temperatures and human activity were high. Activity of lions differed between the sexes but coincided with the activity of their prey. Feeding intervals and feeding bouts for lions were longer inside the protected area compared to multiuse landscapes outside it. Lions tended to feed longer on predated than scavenged carcasses. Livestock comprised the majority of the lions’ diet in the Gir landscape. We observed a low level of kleptoparasitism in the Asiatic lions compared with their counterparts in the Serengeti in Africa. Hunting by lionesses declined during the corresponding male activity period, possibly to minimize kleptoparasitism by male lions. We conclude that the hunting and feeding times of lions are adapted to maximize payoffs.
食肉动物会通过增加与猎物的接触、减少与人类的重叠以及最大限度地减少因偷猎而损失猎物的机会来改变自己的活动,从而最大限度地提高个体的生存能力。我们通过每次为期 2-10 天的连续重点动物取样,在吉尔地貌中观察了 16 头携带放射线耳环的狮子(Panthera leo leo),并研究了它们的狩猎和进食模式与猎物(chital 和家畜)的活动模式之间的关系。狮子大多在夜间活动,而白天的大部分时间则是在气温和人类活动频繁时在遮蔽物下休息。狮子的活动在性别上存在差异,但与猎物的活动相吻合。与保护区外的多用途景观相比,保护区内狮子的进食间隔和进食次数更长。狮子捕食被捕食者尸体的时间往往长于捕食被拾取者尸体的时间。在 Gir 地貌景观中,牲畜是狮子的主要食物。与非洲塞伦盖蒂的狮子相比,我们观察到亚洲狮的偷窃寄生程度较低。在相应的雄狮活动期间,雌狮的狩猎活动有所减少,这可能是为了尽量减少雄狮的偷食行为。我们的结论是,狮子的狩猎和觅食时间是为了获得最大回报而调整的。