The southwestern United States and Sonora, Mexico are the extreme northern limits of the jaguar’s (Panthera onca) range, which primarily extends from central Mexico south through Central and South America to northern Argentina. Recently, the jaguar ranged as far north as Arizona, New Mexico, and Texas. Over the last century, the jaguar’s range has been reduced to approximately 46% of its historic range due to hunting pressure and habitat loss. The greatest loss of occupied range has occurred in the southern United States, northern Mexico, northern Brazil, and southern Argentina. Since 1900, jaguars have been documented occasionally in the southwestern United States, but the number of sightings per decade has declined over the last 100 years with only 4 verified sightings between 1970 and 2000. The objectives of our analysis were twofold: (1) characterize potential jaguar habitat in Arizona from historic sighting records, and (2) create a statewide habitat suitability map.

Apache trout is a federally threatened salmonid native to headwaters of the Little Colorado, Black, and White rivers in east-central Arizona. Decline of Apache trout to threatened status was attributed to over-fishing, habitat degradation and negative interactions (predation, competition and hybridization) with introduced nonnative salmonids. Although over-fishing is no longer considered a threat, habitat degradation and negative interactions with nonnative salmonids continue to threaten Apache trout, and it is towards these threats that recovery actions are directed. While barrier construction began in 1979 and livestock exclusion began in the mid-1980s, the efficacy of these recovery actions at increasing Apache trout abundance and improving habitat condition had not been evaluated. We therefore initiated a study to evaluate the efficacy of riparian fencing and barriers.

This report utilizes criteria developed by the Habitat Subcommittee of the Jaguar Conservation Team to identify suitable jaguar habitat in New Mexico. In July 2003, the New Mexico Department of Game and Fish also issued a report on jaguar habitat, along with accompanying maps.4 However, in an August 2004 meeting of the Habitat Subcommittee in Albuquerque, members who were present during the development of the habitat criteria between 1998 and 2000 reviewed the New Mexico report, concluded it was based on criteria different from those they had agreed to, further noted that it explicitly refrained from identifying suitable jaguar habitat, and decided not to forward it to the Jaguar Conservation Team as fulfilling the conservation assessment and strategy’s intent. The present document is intended to complete the process of identifying suitable jaguar habitat in the two states preparatory to coordinating protection of those habitats.

The Jaguar Conservation Agreement provides opportunities and incentives for interested parties to become involved with conservation activities. These activities include collection of biological information (to provide a sound scientific basis for decisions); consideration of relevant cultural, economic, and political factors; design and implementation of a comprehensive approach to conservation (including public education); and monitoring, evaluation, and feedback. This summary will focus on the mapping efforts and make recommendations to the Jaguar Conservation Team on conservation measures for potential jaguar habitat.