title: Genetic variation in social mammals: the marmot model.
abstract: The social substructure and the distribution of genetic variation among colonies of yellow-bellied marmots, when analyzed as an evolutionary system, suggests that this substructure enhances the intercolony variance and retards the fixation of genetic variation. This result supports a traditional theory of gradual evolution rather than recent theories suggesting accelerated evolution in social mammals.
authors.forename: O A
authors.initials: OA
authors.lastname: Schwartz
authors.forename: K B
authors.initials: KB
authors.lastname: Armitage