Does size matter? An investigation of habitat use across a carnivore assemblage in the Serengeti, Tanzania.

The Journal of Animal Ecology
Sarah M DurantNathalie Pettorelli

Abstract

1. This study utilizes a unique data set covering over 19 000 georeferenced records of species presence collected between 1993 and 2008, to explore the distribution and habitat selectivity of an assemblage of 26 carnivore species in the Serengeti-Ngorongoro landscape in northern Tanzania. 2. Two species, the large-spotted genet and the bushy-tailed mongoose, were documented for the first time within this landscape. Ecological Niche Factor Analysis (ENFA) was used to examine habitat selectivity for 18 of the 26 carnivore species for which there is sufficient data. Eleven ecogeographical variables (EGVs), such as altitude and habitat type, were used for these analyses. 3. The ENFA demonstrated that species differed in their habitat selectivity, and supported the limited ecological information already available for these species, such as the golden jackals' preference for grassland and the leopards' preference for river valleys. 4. Two aggregate scores, marginality and tolerance, are generated by the ENFA, and describe each species' habitat selectivity in relation to the suite of EGVs. These scores were used to test the hypothesis that smaller species are expected to be more selective than larger species [Science, 1989, 243, 1145]...Continue Reading

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Citations

Jul 16, 2011·Oecologia·Nathalie PettorelliJean-Michel Gaillard
Nov 9, 2012·Proceedings. Biological Sciences·M Soledad DomingoJorge Morales
Jan 22, 2015·Proceedings of the National Academy of Sciences of the United States of America·Mafalda VianaTiziana Lembo
Jul 25, 2017·Oecologia·Jacques de SatgéBogdan Cristescu

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