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Although bats and dolphins live in very different environments, are vastly different in size, and hunt different kinds of prey, both groups have evolved similar sonar systems, known as echolocation, to locate food and navigate the skies and seas. While much research has been conducted over the past thirty years on echolocation in bats and dolphins, this volume is the first to compare what is known about echolocation in each group, to point out what information is missing, and to identify future areas of research. Echolocation in Bats and Dolphins consists of six sections: mechanisms of echolocation signal production; the anatomy and physiology of signal reception and interpretation; performance and cognition; ecological and evolutionary aspects of echolocation mammals; theoretical and methodological topics; and possible echolocation capabilities in other mammals, including shrews, seals, and baleen whales. Animal behaviorists, ecologists, physiologists, and both scientists and engineers who work in the field of bioacoustics will benefit from this book.
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Humans are also top predators in the North Atlantic ecosystem.
'Erich Hoyt's handbook is an admirable, timely and highly welcome contribution.'Michael Stachowitsch, Marine EcologyWhat does it mean to save the whales if their habitat is left unprotected? Marine Protected Areas for Whales, Dolphins and Porpoises is the definitive handbook on this pressing issue and the first to bridge the gap between the disciplines of marine protected areas and cetacean conservation. It launches a new chapter in cetacean conservation with its investigation into the crucial habitat needs and protection requirements of some 84 species.The author, one of the world's foremost experts in this field, takes you around the world to investigate the promising results of the latest conservation research and the strategies for obtaining marine protected areas in coastal waters and on the high seas, using national legislation and regional and international conventions. This is an essential introduction, guide and reference work for those working to ensure a future for whales and dolphins.
This volume consists of fifteen chapters by prominent authorities in the fields of cetacean law, policy, and science. The overarching purpose of the book is to assess the challenges faced by cetacean species in the 21st century, and the role of legal, political, and scientific institutions to meet these challenges. The book also contains several chapters that address the abiding ethical questions dividing those who seek to continue to exploit cetaceans as resources and those who maintain that direct exploitation should be permanently banned on the grounds of sentience or intelligence. Published under the Transnational Publishers imprint.
Book Description: 揙rcas of the Gulf will be a pleasure to anyone who wants to explore the realities of nature. Mr. Gormley's awe and respect for these magnificent whales is shared with us as a small pod of orca pass through the familiar waters off New England. We find ourselves enveloped in the interlocked, interwoven spectrum of the sea; everyday life to the orca, white water drama and magical beauty to Man. Much seems incredible, impossible, even mythical, yet the author has included every available bit of science in his exciting and educational narrative. He takes us a few steps farther than science has yet gone with common sense and realism, challenging the scientists to discover the f...