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Ethology and Behavioral Ecology of Sea Otters and Polar Bears

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Ethology and Behavioral Ecology of Sea Otters and Polar Bears/ edited by Randall W. Davis, Anthony M. Pagano.
其他作者:	Davis, Randall W.
面頁冊數:	XIV, 363 p. 110 illus., 89 illus. in color.online resource. :
Contained By:	Springer Nature eBook
標題:	Ecology . -
電子資源:	https://doi.org/10.1007/978-3-030-66796-2
ISBN:	9783030667962

Ethology and Behavioral Ecology of Sea Otters and Polar Bears
Ethology and Behavioral Ecology of Sea Otters and Polar Bears[electronic resource] /edited by Randall W. Davis, Anthony M. Pagano. - 1st ed. 2021. - XIV, 363 p. 110 illus., 89 illus. in color.online resource. - Ethology and Behavioral Ecology of Marine Mammals,2523-7519. - Ethology and Behavioral Ecology of Marine Mammals,.

Introduction -- Part I. Ethology and Behavioral Ecology of Sea Otters -- Taxonomy and Evolution of Sea Otters -- Sea Otter Behavior: Morphologic, Physiologic, and Sensory Adaptations -- Sea Otter Foraging Behavior -- Social Structure of Marine Otters: Inter and Intraspecific Variation -- Reproductive Behavior of Male Sea Otters -- Reproductive Behavior of Female Sea Otters and Their Pups -- Sea Otter Behavior and Its Influence on Littoral Community Structure -- Sea Otter Predator Avoidance Behavior -- Sea Otters and the Maritime Fur Trade -- Part II. Ethology and Behavioral Ecology of Polar Bears -- Polar Bear Taxonomy and Evolution -- Polar Bear Behavior: Morphologic and Physiologic Adaptations -- Polar Bear Foraging Behavior -- Polar Bear Reproductive and Denning Behavior -- Polar Bear Maternal Care, Neonatal Development, and Social Behavior -- Polar Bear Behavior in Response to Climate Change -- Human-Polar Bear Interactions.

Sea otters and polar bears are carnivorous marine mammals that still resemble their terrestrial ancestors. Compared with Cetacea (whales and dolphins), Sirenia (dugongs and manatees), and Pinnipedia (seals, sea lions, and walrus), they are less adapted for an aquatic life and the most recently evolved among marine mammals. Sea otters are amphibious but seldom come ashore, and polar bears primarily occur on sea ice or along the shore. When at sea, both species spend most of their time swimming at the surface or making short, shallow dives when foraging or pursuing prey. Indeed, polar bears rarely pursue seals in water. Nevertheless, polar bears are powerful swimmers and will stalk seals from the water. As with many other large carnivores, they are solitary hunters. Although sea otters are gregarious and form aggregations at sea called rafts, they are primarily asocial. Except during mating, the principal interaction among sea otters occurs between a female and offspring during the six-month dependency period. In large carnivores (e.g., wolves and lions) that feed on ungulates, sociality and cooperation are favored because of the need to capture large prey and defend carcasses. Polar bears, which are the largest terrestrial carnivore, are solitary hunters of seals and are neither gregarious nor social. Males and females briefly associate during courtship and mating. During this time, males aggressively compete for females. At other times, males generally avoid each other except for aggregations of males that form while summering on land, and females with cubs avoid males, which are known for infanticide. As with sea otters, the interaction of polar bears outside of mating occurs between a female and her offspring during the 2-3 year dependency period. This interaction is critically important when altricial cubs are born in the winter den. This book provides new insight into the ethology and behavioral ecology of sea otters and polar bears. Each chapter reviews the discoveries of previous studies and integrates recent research using new techniques and technology. The authors also address historic and current anthropogenic challenges for their survival as climate change alters entire marine ecosystems.

ISBN: 9783030667962

Standard No.: 10.1007/978-3-030-66796-2doiSubjects--Topical Terms:

1253481
Ecology .

LC Class. No.: QH540-549.5

Dewey Class. No.: 577

Ethology and Behavioral Ecology of Sea Otters and Polar Bears
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