Chapter 30, Problem 31A

Summary Introduction

To determine:

The condition, in which ground squirrel exhibit vigilant behavior.

Introduction:

In behavioral ecology, the vigilance means the examination the surrounding to raise the awareness about the food and the predators.

Explanation of Solution

The given conditions show the difference in the vigilance behavior at different sound frequencies. It is observed that the ground squirrel’s activity increased in the calls is made within the audible range of sound.