Chapter 53.4, Problem 2R

Summary Introduction

To review:

The way in which Wallace’s line helped in explaining the control of the formation of biogeographic regions.

Given:

Figure 1: Biogeographic zones of the earth

Introduction:

On the basis of climate and topography, Wallace divided the earth into six regions, each having its unique biodiversity (Figure 1). These regions are known as biogeographic zones, which are Palearctic, Ethiopian, Oriental, Australasian, Nearctic, and Neotropical.