Effects of Movement and Mating Patterns on Gene Flow among Overwintering Hibernacula of the Timber Rattlesnake (Crotalus horridus)

This article tested the gene flow of Timber Rattlesnake (Crotalus horridus) between 6 different  neighboring snake dens (hibernacula). The males of this species tended to mate at wider rangers than females which helped encourage gene flow between hibernacula. Also there was no bias preference between snakes from home and neighboring habitats. This random mating lead to the mating following the hardy weingburg equalbirum parameters. While there was some genetic differentiation between the six different hibernaculas, there was not enough to cause subsative genetic drift. 

Corey Devin Anderson (2010) Effects of Movement and Mating Patterns on Gene Flow among Overwintering Hibernacula of the Timber Rattlesnake (Crotalus horridus). Copeia: February 2010, Vol. 2010, No. 1, pp. 54-61.