Inter-Individual Isolation by Distance: Implications for Landscape Genetics

Volume 18, No. 1-4, Montana Chapter of the Wildlife Society (TWS) - Presentation Abstract

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gene flow, wildlife management, northern arizona university, isolation by distance, isolation

Scientific Disciplines

Biological Sciences - Terrestrial

Abstract Text

Many approaches to understanding the influence of landscape on gene flow account for isolation by distance, a phenomena where individuals that are closer together are more likely to be more closely related. Most theoretical research has focused on isolation by distance between populations. We simulated the expected isolation by distance patterns between individuals within a finite population and found an asymptotic pattern. New null models are needed in landscape genetic approaches to correctly account for isolation by distance patterns. We will briefly review isolation by distance and discuss the factors (time, variance in dispersal, and mutation rates) influencing isolation by distance patterns. Our results have implications for estimating how difficult it is for animals to move through the landscape.