Chapter 22, Problem 14TYK

Summary Introduction

To review:

The possibility of gene flow between the intermediate populations at the two ends of a ring species is eliminated if they become extinct. The remaining populations might further, be identified as full species.

Introduction:

The plant and animal species residing in a ring-shaped geographical area surrounding an uninhabitable area produce a ring species. The adjacent populations can interbreed among themselves but there is no direct gene flow between the distant populations. The populations that can mate with each other are called intermediary populations.