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Return to the Sea The Life and Evolutionary Times of Marine Mammals 1st Edition by Annalisa Berta, James L Sumich, Carl Buell ISBN 0520270576 9780520270572

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Return to the Sea The Life and Evolutionary Times of Marine Mammals 1st Edition Annalisa Berta Digital Instant Download

Author(s): Annalisa Berta, James L. Sumich, Carl Buell
ISBN(s): 9780520270572, 0520270576
Edition: 1
File Details: PDF, 6.01 MB
Year: 2012
Language: english
SKU: EB-4453584 Category: Tags: , ,

Return to the Sea The Life and Evolutionary Times of Marine Mammals 1st Edition by Annalisa Berta, James L. Sumich, Carl Buell – Ebook PDF Instant Download/Delivery: 0520270576, 9780520270572

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Product details:

ISBN 10: 0520270576

ISBN 13: 9780520270572 

Author: Annalisa Berta, James L. Sumich, Carl Buell

Return to the Sea portrays the life and evolutionary times of marine mammals—from giant whales and sea cows that originated 55 million years ago to the deep-diving elephant seals and clam-eating walruses of modern times. This fascinating account of the origin of various marine-mammal lineages—some extinct, others extant but threatened—is for the nonspecialist. Against a backdrop of geologic time and changing climates and geography, this volume takes evolution as its unifying principle to help us to understand today’s diversity of marine mammals and their responses to environmental challenges. Annalisa Berta explains current controversies and explores patterns of change now taking place, such as shifting food webs and predator-prey relationships, habitat degradation, global warming, and the effects of humans on marine-mammal communities.

Table of contents:

Chapter 1. Marine Mammals
1.1 Major Groups of Marine Mammals
1.2 Discovering, Naming, and Classifying Marine Mammals
1.3 Reconstructing the Hierarchy of Marine Mammals
1.4 Adaptations and Exaptations
1.5 What Is a Species and How Do New Species Form?
1.6 Where Do They Live and Why Are They Where They Are?

Chapter 2. Past Diversity in Time and Space, Paleoclimates, and Paleoecology
2.1 Fossils and Taphonomy
2.2 The Discovery of the First Fossil Marine Mammal (a Whale)
2.3 The Importance of Fossils
2.4 How Do We Know the Age of a Fossil?
2.5 How Do We Know Where Marine Mammals Were?
2.6 Marine Mammal Diversity and Communities Through Time
2.7 What Led Marine Mammals Back to the Sea?

Chapter 3. Pinniped Diversity, Evolution, and Adaptations
3.1 The Earliest Pinnipeds: Webbed Feet or Flippers?
3.2 Crown Pinnipeds
3.3 Desmatophocids: Extinct Phocid Relatives
3.4 Evolutionary Trends
3.5 Structural and Functional Innovations and Adaptations
3.6 Mating and Social Systems, Reproduction, and Life History

Chapter 4. Cetartiodactylan Diversity, Evolution, and Adaptations
4.1 Early Whales Had Legs!
4.2 Crown Cetacea (Neoceti)
4.3 Evolutionary Trends
4.4 Structural and Functional Innovations and Adaptations
4.5 Mating and Social Systems, Reproduction, and Life History

Chapter 5. Diversity, Evolution, and Adaptations of Sirenians and Other Marine Mammals
5.1 Walking Sea Cows!
5.2 Crown Sirenia
5.3 Evolutionary Trends
5.4 Structural and Functional Innovations and Adaptations
5.5 Mating and Social Systems, Reproduction, and Life History
5.6 Desmostylians
5.7 Aquatic Sloths
5.8 Marine Otters
5.9 Polar Bears

Chapter 6. Ecology and Conservation
6.1 What Marine Mammals Eat and What Eats Them
6.2 Interactions Between Humans and Marine Mammals: Lessons Learned
6.3 Extinction: The Rule, Not the Exception

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Tags: Annalisa Berta, James L Sumich, Carl Buell, Return to the Sea, Marine Mammals, Life, Evolutionary Times