Genetic statistics comparing native and invasive populations for five microsatellite loci.

N; number of populations; Na: mean number of alleles per locus; A: allelic richness; Ho: mean observed heterozygosity over all loci; Hs: mean gene diversity over all loci; Fst: theta (FST) over all loci. Standard errors are indicated in italics and in brackets. Tests for difference among groups of populations were assessed using the procedure implemented in Fstat with 15 000 permutations of individuals among groups tested (*aand bare based on minimum sample size of 14 and 6 diploid individuals respectively.