Filters: Tags: M1-Changes in Plant and Animal Distributon (X) > Types: OGC WMS Layer (X) > partyWithName: University of Alaska Fairbanks (X) > partyWithName: Shults, Bradley Scott (X)

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Abundance and ecology of martens (Martes americana) in Interior Alaska Summary: "I studied marten (Martes americana) abundance and ecology in the Yukon-Charley Rivers National Preserve during 1991-1993. Using a multiple sample, mark-recapture estimator, I estimated marten densities to be 0.69, 0.41, and 0.45 martens/km2 during each August for 1991-1993, respectively. Density estimates were derived with the boundary-strip method to address the edge effect inherent in live-trapping studies. During the study, marten density declined 43% between 1991 and 1992 and remained low during 1993. I hypothesize that a decline in primary prey (i.e., microtine rodents) and increased environmental stress (i.e., cold temperatures and snow cover) contributed significantly to the decline in marten abundance.... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: East Central Yukon, M1-Changes in Plant and Animal Distributon, Yukon-Charley Rivers National Preserve