The Dusky Dolphin : Master Acrobat Off Different Shores
The Dusky Dolphin: Master Acrobat Off Different Shores covers various topics about the dusky dolphin, including its taxonomy, history and demography, ecology, and behavior. After introducing the dusky dolphin as a member of the genus Lagenorhynchus under the family Delphinidae, the book continues by describing its life history, its demographic patterns, and its role in the food web considering predation, parasitism, and competition. The book also includes chapters that discuss the interaction of the dusky dolphin with its habitats, such as the dusky dolphin's sound production, its foraging at
1 online resource (458 pages)
9780080920351, 0080920357
1048617027
Front Cover; The Dusky Dolphin: Master Acrobats off Different Shores; Copyright Page; Dedication; Contents; Preface; About the Editors; Chapter 1. The Dusky Dolphins' Place in the Delphinid Family Tree; A STATE OF CONFUSION; A HISTORICAL OVERVIEW OF THE GENUS LAGENORHYNCHUS; TAXONOMIC HISTORY OF THE DUSKY DOLPHIN; EVOLUTION, MOLECULAR SYSTEMATICS, AND A NEW TAXONOMY; ACKNOWLEDGMENTS; NOTES; Chapter 2. Dusky Dolphin Life History and Demography; DUSKY DOLPHIN TAXONOMY; DISTRIBUTION AND ABUNDANCE; HABITAT CHARACTERISTICS; EXTERNAL CHARACTERISTICS; SIZE, SHAPE, AND SEXUAL DIMORPHISM. INTERNAL ANATOMYGROWTH AND REPRODUCTION; ASSOCIATIONS WITH OTHER SPECIES; PARASITES, COMMENSALS, AND DISEASE; DIET AND FORAGING ECOLOGY; ANTHROPOGENIC THREATS; SOME ANSWERS AND MORE QUESTIONS; ACKNOWLEDGMENTS; Chapter 3. Dusky Dolphin Trophic Ecology: Their Role in the Food Web; INTRODUCTION; DUSKY DOLPHINS AS PREDATORS; DUSKY DOLPHINS AS COMPETITORS FOR FOOD RESOURCES; MIXED-SPECIES FORAGING ASSOCIATIONS; DUSKY DOLPHINS AS HOSTS IN PARASITIC RELATIONSHIPS; DUSKY DOLPHINS AS PREY; DUSKY DOLPHIN INTERACTIONS WITH HUMANS; ACKNOWLEDGMENTS; NOTE; Chapter 4. Acoustics of Dusky Dolphins. INTRODUCTIONWHISTLE SIGNALS; BURST PULSE SIGNALS; ECHOLOCATION SIGNALS; ECHOLOCATION BEHAVIOR; DISCUSSION AND CONCLUSIONS; ACKNOWLEDGMENTS; INTRODUCTION; Chapter 5. Dusky Dolphins Foraging at Night; METHODS; RESULTS; DISCUSSION; ACKNOWLEDGMENTS; Chapter 6. Dusky Dolphins Foraging in Daylight; INTRODUCTION; HERDING AS A MARINE FORAGING SPECIALIZATION; HOW DUSKY DOLPHINS COORDINATE BEHAVIORS DURING FORAGING; DIFFERENCES IN DUSKY DOLPHIN FORAGING BETWEEN STUDY SITES; HOW DOES ECOLOGY INFLUENCE DUSKY DOLPHIN FORAGING?; CONCLUSIONS; ACKNOWLEDGMENTS. Chapter 7. Predator Threats and Dusky Dolphin Survival StrategiesINTRODUCTION; DUSKY DOLPHINS OFF KAIKOURA, NEW ZEALAND; KILLER WHALES; SHARKS; DUSKY DOLPHINS-GROUP LIVING AND VOCAL REPERTOIRE; SUMMARY AND CONCLUSIONS; ACKNOWLEDGMENTS; Chapter 8. Mating Habits of New Zealand Dusky Dolphins; PROMISCUOUS MATING SYSTEM AND REPRODUCTIVE BIOLOGY; STUDY OBJECTIVES; KEEPING UP WITH THE ACTION: METHODS AND ADVANCES; EFFECT OF THE BREEDING SEASON ON SEXUAL BEHAVIOR; SOCIAL-SEXUAL ACTIVITY BY TIME OF DAY; SMALL MATING GROUPS; MATING OF THE QUICKEST: MALE-MALE COMPETITION. TEAM MATES TO GET MATES: ASSOCIATIONS AMONG MALESFEMALE CHOICE AND FEMALE STRATEGIES; INTERACTIONS BETWEEN MATING GROUPS AND NURSERIES; PROCREATION AND RECREATION: THE ROLE OF NON-REPRODUCTIVE SEX IN DOLPHIN SOCIAL LIVES; SUMMARY AND CONCLUSIONS; ACKNOWLEDGMENTS; Chapter 9. Dusky Dolphin Calf Rearing; INTRODUCTION; FEMALE DUSKY DOLPHIN REPRODUCTIVE PARAMETERS; OVERVIEW OF INFLUENCES ON NURSERY GROUP FORMATION; BEHAVIORAL OBSERVATIONS; DANGERS IN CALF REARING; OPPORTUNITIES IN CALF REARING; SUMMARY; ACKNOWLEDGMENTS; Chapter 10. Sexual Segregation and Genetic Relatedness in New Zealand
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