COMPARISON OF SURVEY METHODS FOR THE COLLECTION OF GENETIC DATA VIA HAIR SNARES FOR HUMBOLDT MARTEN (MARTES CAURINA HUMBOLDTENSIS) ON YUROK TRIBAL LANDS

Evelyn S Wilhelm; Department of Wildlife, Cal Poly Humboldt and Yurok Tribe Wildlife Department; ewilhelm@yuroktribe.nsn.us; Frank Fogarty, Kent Barnes, Scott Demers, Tiana Williams-Claussen

Monitoring and surveying of mammal species is a crucial aspect of landscape management. Non-invasive methods are necessary and useful tools, particularly for sampling cryptic or sensitive species, especially those that are endangered or threatened. One such method is the use of hair snares to collect genetic data of individuals, allowing for mark-recapture studies and increasing knowledge of demographics, occupancy, and distribution. For the threatened Humboldt marten (Martes caurina humboldtensis) found in the coastal regions of northern California and southern Oregon, hair snares have been a primary method for population monitoring. The Yurok Tribe has been working to monitor the population of Humboldt marten on Tribally managed lands. The Yurok Tribe Wildlife Department, in collaboration with agency and academic partners, developed a novel snare design to improve sample collection and viability. We analyzed data collected during two population studies, one which used traditional gun brush arrays and one that used the novel snare design of glue strips enclosed in PVC tube structures, to investigate the efficacy of the two trap types. We also determined points of failure in each trap type to guide future improvements of this monitoring method for the Humboldt marten in this region.

Natural History of Mammals 
Thursday 2:35 PM
   Student Paper