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lions

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山西教育(教学) 2005年第12期 31-31页

作者： Casey Malarcher 文涛

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Jacques—Louis lions（1928—2001）

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数学译林 2002年第2期21卷 136-144页

作者： PeterD.Lax 林长好等

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Estimates of Density and Population Size of African lions in the Katavi National Park, Tanzania

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Open Journal of Ecology 2022年第9期12卷 614-628页

作者： Shwahibu Massawe Hillary Thomas Mrosso Michael Honorati Kimaro Conservation Science Department Katavi National Park Tanzania Tanzania Research and Conservation Organization Morogoro Tanzania GELIFES Institute University of Groningen Groningen Netherlands

Lion populations are declining globally, including in Tanzania, and Africa. However, Katavi National Park is a landscape with potential for a sustainable and healthy population of African lions (Panthera leo), but there is currently limited reliable data indicating density and population size. This hinders the development of conservation action plans, including population monitoring, for this species. To address this data gap, we assessed lions’ demography and population estimates (population size and density) in the Katavi National Park using a call-back survey method. In addition, we assessed ecological factors that influenced distribution of lions to the call-back stations. Our estimated population size revealed 84 lions (95% CI 53 - 116), with a density of 5/100 km2 (95% CI 3.14 - 6.86) in the sampled area, representing 38% of the total park. This resulted in an estimated 214 individuals when extrapolated to the whole park. Sixty-seven percent of lions that responded to the stations were female, and ecological factors that significantly influenced their distribution included elevation, land cover, precipitation, temperature, wind speed, and prey abundance. Our results suggest that female lions are more abundant than males in Katavi National Park and that population size and density estimates, as well as understanding prey-lion relations, are important indices for lion monitoring and identifying conservation priorities. Further, our study suggests that the call-back survey method is an effective, rapid, and less costly population assessment method for lions, may be useful for assessing other social species in the Katavi ecosystem and can be a useful tool for community engagement and contributing to scientific monitoring.

关键词： lions Population Abundance Density Ecological Influencing Factors Call-Back Method

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The impact of burning on lion Panthera leo habitat choice in an African savanna

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Current Zoology 2013年第3期59卷 335-339页

作者： Stephanie EBY Anna MOSSER Ali SWANSON Craig PACKER Mark RITCHIE Department of Biology Syracuse University Syracuse NY 13210 USA Department of Ecology Evolution and Behavior University of Minnesota Saint Paul MN 55108 USA Department of Integrative Biology University of Guelph Guelph Ontario N 1G 2W1

Camivores play a central role in ecosystem processes by exerting top-down control, while fire exerts bottom-up con- trol in ecosystems throughout the world, yet, little is known about how fire affects short-term carnivore distributions across the landscape. Through the use of a long-term data set we investigated the distribution of lions, during the daytime, in relation to burned areas in Serengeti National Park, Tanzania. We found that lions avoid burned areas despite the fact that herbivores, their prey, are attracted to burned areas. Prey attraction, however, likely results from the reduction in cover caused by burning, that may thereby decrease lion hunting success. lions also do not preferentially utilize the edges of burned areas over unburned areas de- spite the possibility that edges would combine the benefit of cover with proximity to abundant prey. Despite the fact that lions avoid burned areas, lion territory size and reproductive success were not affected by the proportion of the territory burned each year. Therefore, burning does not seem to reduce lion fitness perhaps because of the heterogeneity of burned areas across the landscape or because it is possible that when hunting at night lions visit burned areas despite their daytime avoidance of these ar- eas .

关键词： Fire lions Savannas Habitat distribution Predator-prey interactions Protected area management

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各有各的走法

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小朋友 2005年第3期 8-8页

作者：任溶溶

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