BIOINDICATOR SPECIES BIOINDICATOR SPECIES POLAR BEARS MATTER b y Ta m m y G a g n e Content Consultant Dr Jeff Welker Fulbright Distinguished US Arctic Chair-Norway Professor of Ecology University of Alaska Anchorage Core Library An Imprint of Abdo Publishing abdopublishing com
CONTENTS CHAPTER ONE Are Polar Bears in Trouble 4 CHAPTER TWO A Complex Problem 16 CHAPTER THREE Why Polar Bears Matter 24 CHAPTER FOUR Looking to the Future 34 Fast Facts 42 Stop and Think 44 Glossary 46 Learn More 47 Index 48 About the Author 48
