Female tiger Panthera tigris home range size and prey abundance: important metrics for management
Achara Simcharoen,Tommaso Savini,George A. Gale,Saksit Simcharoen,Somphot Duangchantrasiri,Somporn Pakpien,James L. Smith +6 more
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TLDR
The relationship between the home range size of female tigers and prey abundance, using data from radio-collared tigers in Huai Kha Khaeng Wildlife Sanctuary, Thailand, and published data from other studies is reported in this article.Abstract:
Tigers Panthera tigris are highly threatened and continue to decline across their entire range. Actions to restore and conserve populations need to be based on science but, in South-east Asia, information on ecology and behaviour of tigers is lacking. This study reports the relationship between the home range size of female tigers and prey abundance, using data from radio-collared tigers in Huai Kha Khaeng Wildlife Sanctuary, Thailand, and published data from other studies. A total of 11 tigers, four males and seven females, were fitted with global positioning system collars, to estimate home ranges using 95 and 100% minimum convex polygons (MCP). Prey abundance was estimated by faecal accumulation rates. The mean home range size of male tigers was 267 and 294 km2 based on 95 and 100% MCPs, respectively; the mean female home range size was 70 and 84 km2, respectively. Territories of male and female tigers had little overlap, which indicated both sexes were territorial. Mean densities of the prey species sambar Rusa unicolor, barking deer Muntiacus muntjac and large bovids were 7.5, 3.5 and 3.0 km−2, respectively. When female home range size and prey abundance were compared at six locations in Thailand, and at other sites in India, Nepal, Bangladesh and Russia, a significant negative correlation was found between prey abundance and home range size. Monitoring this relationship can provide managers with metrics for setting conservation goals.read more
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Amur tigers and leopards returning to China: direct evidence and a landscape conservation plan
Tianming Wang,Limin Feng,Pu Mou,Jianguo Wu,Jianguo Wu,James L. Smith,Wenhong Xiao,Haitao Yang,Hailong Dou,Xiaodan Zhao,Yanchao Cheng,Bo Zhou,Hongyan Wu,Li Zhang,Yu Tian,Qingxi Guo,Xiaojun Kou,Xuemei Han,Dale G. Miquelle,Chadwick Dearing Oliver,Rumei Xu,Jianping Ge +21 more
TL;DR: Wang et al. as mentioned in this paper investigated factors influencing the resettlement of the two big cats and proposed a landscape-scale conservation plan to secure the long-term sustainability of the Amur tiger and leopard.
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How much gene flow is needed to avoid inbreeding depression in wild tiger populations
TL;DR: This study developed a tiger simulation model and used published levels of genetic load in mammals to simulate inbreeding depression and introduced one to four dispersing male tigers per generation to explore how gene flow from nearby populations may reduce the negative impact of inbreeding depressed.
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Landscape-scale accessibility of livestock to tigers: implications of spatial grain for modeling predation risk to mitigate human–carnivore conflict
Jennifer R. B. Miller,Jennifer R. B. Miller,Yadvendradev V. Jhala,Jyotirmay Jena,Oswald J. Schmitz +4 more
TL;DR: Results demonstrate that risk models developed at fine spatial grains can offer accurate guidance on landscape attributes livestock should avoid to minimize human–carnivore conflict.
Journal ArticleDOI
A comparison of food habits and prey preference of Amur tiger (Panthera tigris altaica) at three sites in the Russian Far East
Linda L. Kerley,Anna S. Mukhacheva,Dina S. Matyukhina,Elena Salmanova,Galina P. Salkina,Dale G. Miquelle +5 more
TL;DR: It is suggested that the protection of this group of species is critical to Amur tiger conservation, and scat analysis still appears useful in providing insight into the diets of carnivores when the full spectrum of prey species needs to be identified, or when sample sizes from kill data are not sufficient.
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