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Title: Abundance and food habits of cougars and bobcats in the Sierra San Luis, Sonora, Mexico
Author(s): Soria, Hugo Luna; Lopez Gonzalez, Carlos A.
Date: 2005
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: 416-420
Station ID: P-RMRS-036
Description: Cougars (Puma concolor) and bobcats (Lynx rufus) are present throughout the Sky Islands of the Sonoran desert. We determined the abundance and food habits in northeastern Sonora, Mexico. Abundance indicated that cougars were common (4.19±5.57 cougars/100 km2 and 0.05±0.05 scats/km). According to the scat index, bobcats were more abundant than cougars but no significant differences were found between the two ranches in the study area for both species. Cougars fed primarily on white-tailed deer (Odocoileus virginianus) and bobcats fed primarily on eastern cotton-tailed rabbit (Sylvilagus floridanus), where a small dietary overlap was estimated (0.34, Morisita index and 0.22, Pianka index). Our data help the management and conservation of this region.
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