(Keping Sun et al.)
Introduction
This experiment focused on understanding the process of the diversification of phenotypic traits between populations of individual species due to geographic distance or isolation between each population. These researchers aimed to analyze the microevolutionary processes of genetic drift, cultural drift, and adaptation as factors that could have driven geographic variation in certain phenotypic characteristics. They established three hypotheses that allowed them to predict that these microevolutionary processes drove the phenotypic variation in echolocation call resting frequency (RF) of Rhinolophus ferrumequinum across a