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Multi Scale Habitat Relationships Of Martes Americana In Northern Idaho, U.S.A, Tzeidle N. (Tzeidle Nicole) Wasserman, Samuel A. Cushman, David O. Wallin, Jim Hayden

Environmental Sciences Faculty and Staff Publications

We used bivariate scaling and logistic regression to investigate multiple-scale habitat selection by American marten (Martes americana). Bivariate scaling reveals dramatic differences in the apparent nature and strength of relationships between marten occupancy and a number of habitat variables across a range of spatial scales. These differences include reversals in the direction of an observed association from positive to negative and frequent dramatic changes in the apparent importance of a habitat variable as a predictor of marten occurrence. Logistic regression on the optimally scaled input variables suggests that at the scale of home ranges, marten select landscapes with …