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Social structure and space use of Amur tigers(Panthera tigris altaica)in Southern Russian Far East based on GPS telemetry data

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Integrative Zoology 2015年第4期10卷 365-375页

作者： Jose A.HERNANDEZ-BLANCO Sergei V.NAIDENKO Maria D.CHISTOPOLOVA Victor S.LUKAREVSKIY Alexey KOSTYRYA alexandr rybin Pavel A.SOROKIN Mikhail N.LITVINOV Andrey K.KOTLYAR Dale G.MIQUELLE Viatcheslav V.ROZHNOV A.N.Severtsov Institute of Ecology and Evolution Russian Academy of ScienceMoscowRussia V.L.Komarov Ussuriskii State Nature Reserve Far Eastern BranchRussian Academy of ScienceUssuriskRussia Institute of Biology and Soil Sciences Far Eastern BranchRussian Academy of ScienceVladivostokRussia Wildlife Conservation Society VladivostokRussia

To better understand the spatial structure of Amur tigers(Panthera tigris altaica)at the southern edge of their range we fitted 14 tigers(6♀♀and 8♂♂)with 15 GPS-Argos collars between 2008 and 2011 in 2 study sites:the Ussuriskii Reserve of southern Sikhote-Alin and the Land of the Leopard National Park in southwest Primorye,Russian Far *** kernel estimates of male home ranges were larger than those of female home ranges(P<0.05[mean 95%fixed kernel♀=401±205 km2;mean 95%fixed kernel♂=778±267 km2]).The home range size of females varied greatly,but on average was similar to estimates derived from earlier work further *** overlap of adjacent home ranges suggested that females retained exclusive *** core areas of females overlapped only slightly,and remained stable over multiple *** home ranges of adult males were smaller than those of males to the north,and in contrast to previous studies,high overlap among males indicated the absence of ***,real core areas of males did not overlap,suggesting some spatial *** comparison to other tiger populations and other areas of the Russian Far East,the sex ratio in our 2 study areas was highly skewed towards *** believe this skewed sex ratio resulted in the dissolution of territoriality of males due to an inability to defend individual females,with males resorting to scramble competition for *** monitoring of these sites to determine whether shifts in the sex ratio might result in a return to male territoriality would provide confirmation of our tentative hypothesis.

关键词： Amur tiger GPS-Argos telemetry home range overlap Panthera tigris altaica space use social structure sex ratio

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