Dispersal behavior of the southern pine beetle, Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae), in response to synthetic aggregating pheromone (frontalin) indicates an exponential decrease in response with distance from the site of emergence. Differential response during dispersal among genotypes at a polymorphic esterase locus was found by using starch gel electrophoresis. These differences produced allelic distributions that predict increased genetic diversity concurrent with increasing dispersal distance from the source population.
Johnson, Paul C.; Coster, Jack E.; and Florence, L. Zack, "Behavioral and Genetic Diversity during Dispersal: Analysis of a Polymorphic Esterase Locus in Southern Pine Beetle, Dendroctonus frontalis" (1982). Faculty Publications. 328.