Table of Contents. Preface. 1. Introduction. 2. River Turtle Diversity, Adaptations, and Roles in the River. 3. Communities and Habitats. 4. Traditional Exploitation Methods, Efficiency, and Consequences for. 5. River Turtle Exploitation : Past and Present. 6. Indirect Factors C…
"The earth's taxonomically diverse river turtles are often specialized species which play varied but poorly understood roles in flowing water ecosystems. Many are endangered by direct exploitation for food and other uses and by habitat degradation in their home rivers. This book…
A profile of the habitat and life cycle of the polar bear covers the species' venerated position in Inuit culture, its reproductive habits, and the environmental factors that are compromising its ability to survive.