Our satellite monitoring site, the Eastern Klamath Study Area (EKSA – see photo above), is located in the Eastern Klamath region of Northern California and Southern Oregon. The research there began as a separate project in 2005 to determine if non-invasive hair snares could be used to estimate both fisher occupancy and abundance. Hair snares and Track plates are used to collect evidence of fishers entering bait stations across the study area during late fall and early winter of each year. The fisher translocation began to take shape in 2008, and the State of California’s feasibility document required one of the source sites for fishers to must be monitored for affects of removal. The EKSA site became the perfect candidate.
We removed fishers from there 2 years in a row (2009 and 2010), and hair snare and track plate surveys continue each fall. We have a good snapshot of a healthy fisher population 3 years prior to removal, for the 2 years of concurrent removal, and 3 years post removal. So far the data leads us to believe that the population here has remained stable.
SWIERS, ROBERT CLIFDEN. Non-Invasive Genetic Sampling and Mark-Recapture Analysis of a Fisher (Martes pennanti) Population in Northern California used as a Reintroduction Source. (Under the direction of Dr. Roger A Powell.)