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Atlas of the anatomy of dolphins and whales
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ISBN: 0128026367 9780128026366 9780128024461 0128024461 Year: 2019 Publisher: London, England : Academic Press,

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Keywords

Dolphins --- Whales --- Anatomy. --- Delphininae --- Delphinidae --- Cetacea --- Cetaceans --- Cete --- Cetomorpha --- Mammals --- Anatomy


Book
Ethology and Behavioral Ecology of Odontocetes
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ISBN: 3030166635 3030166627 Year: 2019 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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This book concentrates on the marine mammalian group of Odontocetes the toothed whales, dolphins, and porpoises. In 23 chapters, a total of 40 authors describe general patterns of ethological concepts of odontocetes in their natural environments, with a strong bent towards behavioral ecology. Examples are given of particularly well-studied species and species groups for which enough data exist, especially from the past 15 years. The aim is to give a modern flavor of present knowledge of ethology and behavior of generally large-brained behaviorally flexible mammals that have evolved quite separately from social mammals on land. As well, the plight of populations and species due to humans is described in multiple chapters, with the goal that an understanding of behavior can help to solve or alleviate at least some human-made problems. .


Book
Whales of the Southern Ocean : Biology, Whaling and Perspectives of Population Recovery
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ISBN: 3030292525 3030292517 Year: 2019 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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Based on actual data of Soviet whaling, and reliable methodologies that existed at the time when this monograph was written, it examines the distribution and migration patterns of whales of the Southern Ocean. It defines distinct populations on the basis of phenes, as well as whale breeding zones, which are located in the adjacent to the Southern Ocean waters at lower latitudes. The book records the presence of a new species of killer whale in the Southern Ocean - Orcinus nana. Prenatal growth patterns, pregnancy and lactation duration, mean sizes of new-born whales are determined. Methods for the graphic recording of registering structures are described, and an original method for their decoding is proposed to determine animal age. The age of sexual and physical maturity, life expectancy is determined. Earlier unknown “pair formations” on the lower jaw of baleen whales and sperm whales are described, together with their macro, histological and electronic microscopic structure. The impact of the extermination of whales on the Southern Ocean ecosystem is examined, recommendations for control of the current state of whale populations are given, and perspectives of whale population recovery are estimated. Regions that could be used as testing areas for whale registration method are defined. The book is intended for biologist-cytologists, ecologists and other specialists interested in cetaceans, and for biology students.

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