Chapter 37, Problem 15TYK

Summary Introduction

To explain: The reasons for the population explosion of larvae of European zebra mussels at Lake Erie and Lake Ontario of USA.

Concept introduction: Invasive species are a threat to the communities and ecosystems of the native areas. These species are those that are introduced from other areas. They out-compete the native species for the food resources and multiply in large populations, thus invading the new area. Invasive species are a threat because they push the native species to the brink of extinction and disrupt the food web of that area.

Summary Introduction

To explain: The effects of invasive European zebra mussels on the native organisms that have to share their ecosystem with them.

Concept introduction: Invasive species are a threat to the communities and ecosystems of the native areas. These species are those that are introduced from other areas. They out-compete the native species for the food resources and multiply in large populations, thus invading the new area. Invasive species are a threat because they push the native species to the brink of extinction and disrupt the food web of that area.

Summary Introduction

To suggest: The ways to curb the mussel population problem.