Rainfall, ambient temperature, and Clethrionomys californicus capture frequency

摘要: Sixty Western Red-backed Voles Clethrionomys californicus inhabiting an old-growth mixed conifer forest in north-western California (USA) were studied over 2 years to assess relationships among vole capture frequency, rainfall, and ambient temperature. encountered more often recapture rates per doubled with the tripling of yearly rainfall. In addition, voles captured during wet months than dry months. Analysed weekly intervals, captures positively correlated amount a greater proportion known population was weeks weeks, increased rainfall resulted captured. Significant not found between daily captures, but both minimum maximum temperatures lower when trapped. Vole decreases temperatures. Weekly combination accounted for greatest explanation variability frequencies. These results document that temperature have impact on frequency; thus these weather variables should be addressed as covariates analyses focused data this species.