Chapter 37, Problem 10WIO

Summary Introduction

To determine:

Whether outdoor animals density-dependent or density-independent factor that limits the population of birds. Also, to suggest ways by which home bird feeders might raise or lower bird population sizes.

Concept introduction:

Density-dependent limiting factors are dependent on population density for its effects on population size or growth. Density-independent limiting factors are not dependent on population density for its effects and mainly include abiotic factors.