Diets of three sympatric Neotropical small cats: Food niche overlap and interspecies differences in prey consumption

作者: José E. Silva-Pereira , Rodrigo F. Moro-Rios , Diego R. Bilski , Fernando C. Passos

DOI: 10.1016/J.MAMBIO.2010.09.001

关键词:

摘要: Dietary investigations of sympatric felids are means for understanding how closely related species deal with food resources in a potentially competitive scenario. The diets the oncilla Leopardus tigrinus, jaguarundi Puma yagouaroundi and ocelot pardalis were studied through analysis scats Araucaria Pine Forest Natural Grasslands southern Brazil. Small mammals comprised bulk three felids, followed by birds reptiles. smallest food-niche overlap index was 0.84, indicating that these shared an important portion their resources. Inter-species differences detected consumption most frequent rodent prey; L. tigrinus only consumed all prey differently from rate expected abundances. Although findings suggest interactions, being subordinate species, further experimental necessary to elucidate more precisely syntopic coexist. effects sample size its influences on evaluation especially ocelot, discussed. We compare our data previous study same area, account possible biased sampling uneven distribution diet ocelot. opportunistic feeding behavior abundance primary (cricetid rodents) seem allow small cats be resilient despite severe anthropogenic disturbance area. guidelines future studies region, order understand dynamics mammalian carnivores demography.

参考文章(43)
Francisco Dallmeier, Alfonso Alonso, Biodiversity assessment and long-term monitoring, Lower Urubamba Region, Perú Smithsonian Institution, SI/MAB Biodiversity Program, Institute for Conservation Biology. ,(1997)
Reinhard Maack, Geografia física do Estado do Paraná Livraria J. Olympio Editora , Secretaria da Cultura e do Esporte do Governo do Estado do Paraná. ,(1981)
J. Ray, M. Sunquist, Trophic relations in a community of African rainforest carnivores Oecologia. ,vol. 127, pp. 395- 408 ,(2001) , 10.1007/S004420000604
Marcelo Aranda, V�ctor S�nchez-Cordero, Prey Spectra of Jaguar (Panthera onca) and Puma (Puma concolor) in Tropical Forests of Mexico Studies on Neotropical Fauna and Environment. ,vol. 31, pp. 65- 67 ,(1996) , 10.1076/SNFE.31.2.65.13334
C. Randall Byers, R. K. Steinhorst, P. R. Krausman, Clarification of a technique for analysis of utilization-availability data Journal of Wildlife Management. ,vol. 48, pp. 1050- 1053 ,(1984) , 10.2307/3801467
Anne M. Burrows, Leanne T. Nash, Introduction: evolution, morphology, and behavior of lorisoid primates American Journal of Primatology. ,vol. 69, pp. 1- 5 ,(2007) , 10.1002/AJP.20321
Fabiana Umetsu, Laura Naxara, Renata Pardini, EVALUATING THE EFFICIENCY OF PITFALL TRAPS FOR SAMPLING SMALL MAMMALS IN THE NEOTROPICS Journal of Mammalogy. ,vol. 87, pp. 757- 765 ,(2006) , 10.1644/05-MAMM-A-285R2.1
T.M Caro, C.J Stoner, The potential for interspecific competition among African carnivores Biological Conservation. ,vol. 110, pp. 67- 75 ,(2003) , 10.1016/S0006-3207(02)00177-5