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020			_a9783030667962
024	7		_a10.1007/978-3-030-66796-2 _2doi
040			_aES-MaUEC _bspa _cES-MaUEC _dES-MaUEC
050		4	_aQL737.C25 _b2021 EB
245	0	0	_aEthology and Behavioral Ecology of Sea Otters and Polar Bears _cedited by Randall W. Davis, Anthony M. Pagano
250			_aFirst edition 2021
264		1	_aCham _bSpringer International Publishing _c2021
264		4	_c2021
300			_a1 recurso en línea (XIV, 363 páginas) _b110 ilustraciones, 89 ilustraciones a color
336			_2rdacontent _aTexto _btxt
337			_2rdamedia _aelectrónico _bc
338			_2rdacarrier _arecurso electrónico _bcr
490	0		_aEthology and Behavioral Ecology of Marine Mammals _x2523-7519
490	0		_aBiomedical and Life Sciences (SpringerNature-11642)
490	0		_aBiomedical and Life Sciences (R0) (SpringerNature-43708)
505	0		_aIntroduction -- 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.
520	3		_aSea 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.
988			_aSpringer_BiomedLife_2021
650		7	_2embne _9168780 _aAnimales _xConducta
700	1		_aDavis, Randall W. _eeditor literario _4edt _4http://id.loc.gov/vocabulary/relators/edt
700	1		_aPagano, Anthony M. _eeditor literario _4edt _4http://id.loc.gov/vocabulary/relators/edt
776	0	8	_iPrinted edition: _z9783030667955
776	0	8	_iPrinted edition: _z9783030667979
776	0	8	_iPrinted edition: _z9783030667986
856	4	0	_uhttps://go.openathens.net/redirector/universidadeuropea.es?url=https://doi.org/10.1007/978-3-030-66796-2 _zAcceso a este recurso digital (usuarios Universidad Europea de Madrid)
942			_2lcc _cLE
998			_b01/2022 _dz _ek _zSI