 Significant morphological divergence was present that is highly consistent with trends of bottleneck and genetic structure history, not with geographic distance or environmental variation.Understanding genetic and phenotypic divergence across populations of varying species is important in elucidating ecological and evolutionary differences among populations.One such study where genetic structure among human individuals is investigated is by Relethford and Brennan, (1982) where pedigree and marriage data from Sanday, Orkney Islands in Scotland were used to evaluate temporal patterns in isolation by distance.