Return to the sea : the life and evolutionary times of marine mammals
著者
書誌事項
Return to the sea : the life and evolutionary times of marine mammals
University of California Press, c2012
大学図書館所蔵 全4件
  青森
  岩手
  宮城
  秋田
  山形
  福島
  茨城
  栃木
  群馬
  埼玉
  千葉
  東京
  神奈川
  新潟
  富山
  石川
  福井
  山梨
  長野
  岐阜
  静岡
  愛知
  三重
  滋賀
  京都
  大阪
  兵庫
  奈良
  和歌山
  鳥取
  島根
  岡山
  広島
  山口
  徳島
  香川
  愛媛
  高知
  福岡
  佐賀
  長崎
  熊本
  大分
  宮崎
  鹿児島
  沖縄
  韓国
  中国
  タイ
  イギリス
  ドイツ
  スイス
  フランス
  ベルギー
  オランダ
  スウェーデン
  ノルウェー
  アメリカ
注記
Includes bibliographical references (p. 185-190) and index
内容説明・目次
内容説明
"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 non-specialist. Set against a backdrop of geologic time, changing climates, and changing geography, evolution is the unifying principle that helps us to understand the present day diversity of marine mammals and their responses to environmental challenges. Annalisa Berta explains current controversies and explores patterns of change taking place today, such as shifting food webs and predator-prey relationships, habitat degradation, global warming, and the effects of humans on marine mammal communities.
目次
Preface
Acknowledgments
1. Marine Mammals
Major Groups of Marine Mammals
Discovering, Naming, and Classifying Marine Mammals
Reconstructing the Hierarchy of Marine Mammals
Adaptations and Exaptations
What Is a Species and How Do New Species Form?
Where Do They Live and Why Are They Where They Are?
2. Past Diversity in Time and Space,Paleoclimates, and Paleoecology
Fossils and Taphonomy
The Discovery of the First Fossil Marine Mammal (a Whale)
The Importance of Fossils
How Do We Know the Age of a Fossil?
How Do We Know Where Marine Mammals Were?
Marine Mammal Diversity and Communities Through Time
What Led Marine Mammals Back to the Sea?
3. Pinniped Diversity, Evolution, and Adaptations
The Earliest Pinnipeds: Webbed Feet or Flippers?
Crown Pinnipeds
Desmatophocids: Extinct Phocid Relatives
Evolutionary Trends
Structural and Functional Innovations and Adaptations
Mating and Social Systems, Reproduction, and Life History
4. Cetartiodactylan Diversity, Evolution, and Adaptations
Early Whales Had Legs!
Crown Cetacea (Neoceti)
Evolutionary Trends
Structural and Functional Innovations and Adaptations
Mating and Social Systems, Reproduction, and Life History
5. Diversity, Evolution, and Adaptations of Sirenians
and Other Marine Mammals
Walking Sea Cows!
Crown Sirenia
Evolutionary Trends
Structural and Functional Innovations and Adaptations
Mating and Social Systems, Reproduction and Life History
Desmostylians
Aquatic Sloths
Marine Otters
Polar Bears
6. Ecology and Conservation
What Marine Mammals Eat and What Eats Them
Interactions Between Human and Marine Mammals:
Lessons Learned
Extinction: The Rule, Not the Exception
Glossary
Further Reading and Online Sources
Illustration Credits
Index
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