Kapitel in diesem Buch

1. Frontmatter I
2. Contents VII
3. Preface XI
4. Contributors XV
5. One. Elephant seals: an introduction to the genus 1
6. Part I. Population ecology
7. Two. History and present status of the northern elephant seal population 29
8. Three. History and present status of southern elephant seal populations 49
9. Four. Possible causes of the decline of southern elephant seal populations in the southern pacific and southern Indian oceans 66
10. Five. Population ecology of southern elephant seals at Marion island 85
11. Six. Biomass and energy consumption of the south Georgia population of southern elephant seals 98
12. Part II. Behavior and life history
13. Seven. Juvenile survivorship of northern elephant seals 121
14. Eight. Life history strategies of female northern elephant seals 137
15. Nine. Sexual selection and growth in male northern elephant seals 154
16. Ten. Sex- and age-related variation in reproductive effort of northern elephant seals 169
17. Eleven. Diet of the northern elephant seal 211
18. Part III. Diving and foraging
19. Twelve. Theory of geolocation by light levels 227
20. Thirteen. Variation in the diving pattern of northern elephant seals with age, mass, sex, and reproductive condition 237
21. Fourteen. Diving behavior of southern elephant seals from Macquarie island: an overview 253
22. Fifteen. Developmental aspects of diving in northern elephant seal pups 271
23. Sixteen. Postbreeding foraging migrations of northern elephant seals 290
24. Seventeen. Functional analysis of dive types of female northern elephant seals 310
25. Eighteen. Swim speed and dive function in a female northern elephant seal 328
26. Part IV. Physiological ecology
27. Nineteen. Apnea tolerance in the elephant seal during sleeping and diving: physiological mechanisms and correlations 343
28. Twenty. Expenditure, investment, and acquisition of energy in southern elephant seals 354
29. Twenty-one. Hormones and fuel regulation in fasting elephant seals 374
30. Twenty-two. Endocrine changes in newborn southern elephant seals 387
31. Index 399