Effects of dietary differentiation and geographic distance on genetic differentiation of Eastern European wolves.

Marginal and conditional tests of individual variable sets as well as sequential tests of the forward selection procedure are reported (see Methods for the description of the tests). “Pseudo-F” indicates test statistics, P probability values and “%var” the percentage of the genetic variation explained by the particular variable. In the case of sequential tests, “%var” indicates the percentage of the genetic variation explained by a cumulative effect of variables. The top-down sequence of variables corresponds to the sequence that was indicated by the forward selection procedure. The variable set “coordinates” included latitude and longitude, and “stable isotope composition” included δ15N and δ13C values. Genetic distances were calculated based on the data on variability at 14 microsatellite loci obtained in an earlier study [7].