Sexual differentiation in the distribution potential of northern jaguars (Panthera onca)

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  • Authors: Boydston, Erin E.; Lopez Gonzalez, Carlos A.
  • Publication Year: 2005
  • Publication Series: Proceedings (P)
  • Source: In: Gottfried, Gerald J.; Gebow, Brooke S.; Eskew, Lane G.; Edminster, Carleton B., comps. Connecting mountain islands and desert seas: biodiversity and management of the Madrean Archipelago II. Proc. RMRS-P-36. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 51-56

Abstract

We estimated the potential geographic distribution of jaguars in the southwestern United States and northwestern Mexico by modeling the jaguar ecological niche from occurrence records. We modeled separately the distributions of males and females, assuming records of females probably represented established home ranges while male records likely included dispersal movements. The predicted distribution for males was larger than that for females. Eastern Sonora appeared capable of supporting male and female jaguars with potential range expansion into southeastern Arizona. New Mexico and Chihuahua contained environmental characteristics primarily limited to the male niche and thus may be areas into which males occasionally disperse.

  • Citation: Boydston, Erin E.; Lopez Gonzalez, Carlos A. 2005. Sexual differentiation in the distribution potential of northern jaguars (Panthera onca). In: Gottfried, Gerald J.; Gebow, Brooke S.; Eskew, Lane G.; Edminster, Carleton B., comps. Connecting mountain islands and desert seas: biodiversity and management of the Madrean Archipelago II. Proc. RMRS-P-36. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 51-56
  • Keywords: Panthera onca, jaguars, sex differentiation, geographic distribution, home range, dispersal, competition
  • Posted Date: June 8, 2006
  • Modified Date: August 22, 2006
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