Chapter 8, Problem 5PDT

Summary Introduction

To determine: When an increasing dispersal might result in the evolution of a larger geographic range and when might it not with respect to the high rate of long-distance dispersal of a species.

Introduction: Dispersal is the movement of individual or gametes from one habitat to another habitat which results in the gene flow. The evolutionary advantage of dispersal is that individual can find better habitat with sufficient resources and less competition. A species having a high rate of long-distance dispersal can colonize new habitat more easily, but they are less likely to adapt to local conditions.