Figure 1. Demographic and genetic data for the Scandinavian wolf population between 1991 and 2002 averaged over two-year periods.

a) mean number of wolves and b) mean (±s.e.m.) inbreeding coefficients (blue) and standardized heterozygosity (red).

The number of genotyped wolves (n) per group of years is indicted above the X-axis.

Both inbreeding coefficients (F _5,82 = 5.95, P<0.001) and standardized heterozygosity (F _5,82 = 4.97, P<0.001) show significant differences among the groups of years.