Proceedings of the Seventh Mountain Lion Workshop
Proceedings of the Seventh Mountain Lion Workshop
Proceedings of the Seventh Mountain Lion Workshop
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MONITORING MOUNTAIN LIONS IN THE TUCSON MOUNTAIN DISTRICT OF<br />
SAGUARO NATIONAL PARK, ARIZONA, USING NONINVASIVE TECHNIQUES<br />
LISA HAYNES, Wild Cat and Carnivore Studies, 133 W. 2 nd St., Tucson, AZ 85705, USA,<br />
email: lynxrufus@earthlink.net<br />
DON SWANN, Saguaro National Park, 3693 S. Old Spanish Trail, Tucson, AZ 85730, USA,<br />
email: Don_Swann@nps.gov<br />
MELANIE CULVER, Arizona Cooperative Fish and Wildlife Research Unit, 104 Biosciences<br />
East, University <strong>of</strong> Arizona, Tucson, AZ 85721, USA, email: culver@ag.arizona.edu<br />
Abstract: This presentation will summarize a three-year effort to noninvasively monitor<br />
mountain lions in <strong>the</strong> Tucson <strong>Mountain</strong> District <strong>of</strong> Saguaro National Park, Arizona from 2001<br />
through <strong>the</strong> spring <strong>of</strong> 2003. Park managers are concerned about this mountain lion population,<br />
because <strong>the</strong> Tucson <strong>Mountain</strong>s are becoming surrounded by human development. The continued<br />
existence <strong>of</strong> <strong>the</strong> population is threatened due to habitat loss, potential inbreeding, and disrupted<br />
demographics. Noninvasive methods used to monitor mountain lions included track surveys,<br />
infrared-triggered cameras, and molecular genetic analysis <strong>of</strong> hair (collected from hair snares)<br />
and scat (feces). In <strong>the</strong> first two years, 2001 and 2002, we documented a total <strong>of</strong> 19 sets <strong>of</strong><br />
mountain lion tracks found during 2 winter surveys <strong>of</strong> 30 transects and during seasonal surveys<br />
<strong>of</strong> 4 transects. From track data we determined that mountain lions are consistently detected in<br />
most areas <strong>of</strong> <strong>the</strong> park; however, preliminary evidence suggests a paucity <strong>of</strong> adult males. One <strong>of</strong><br />
<strong>the</strong> most important aspects <strong>of</strong> this project is <strong>the</strong> opportunity for educating volunteers from <strong>the</strong><br />
general public who participate in <strong>the</strong> track surveys. In 2002, 31 <strong>of</strong> 35 hair snares distributed<br />
throughout <strong>the</strong> park had hair deposited on <strong>the</strong>m. Planned genetic analysis will determine<br />
efficacy <strong>of</strong> using hair snares and scat to obtain biological information on mountain lions. We<br />
will present additional data from <strong>the</strong> 2003 track survey and we will provide recommendations for<br />
future monitoring and research efforts.<br />
PROCEEDINGS OF THE SEVENTH MOUNTAIN LION WORKSHOP<br />
141