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Sea otters are good indicators of ocean health. In addition, they are a keystone species, offering a stabilizing effect on ecosystem, controlling sea urchin populations that would otherwise inflict damage to kelp forest ecosystems. The kelp forest ecosystem is crucial for marine organisms and contains coastal erosion. With the concerns about the imperiled status of sea otter populations in California, Aleutian Archipelago and coastal areas of Russia and Japan, the last several years have shown growth of interest culturally and politically in the status and preservation of sea otter population

Sea otter --- Zoology --- Health & Biological Sciences --- Vertebrates --- Conservation --- Sea otter. --- Conservation. --- Enhydra lutris --- Enhydra lutris kamtschatica --- Lutra gracilis --- Lutra marina --- Lutra stelleri --- Mustela lutris --- Sea-otters --- Enhydra

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";Many of the findings in the book . . . are classics of ecology. . . . A rare and delightful insight into timely science.";-Jane Lubchenco, Nature";Estes's refreshing narrative deftly weaves rigorous science with personal reflection to create an absorbing and introspective read that is equal parts memoir, ecological textbook, and motivational guidebook for young ecologists.";-Science To newly minted biologist James Estes, the sea otters he was studying in the leafy kelp forests off the coast of Alaska appeared to have an unbalanced relationship with their greater environment. Gorging themselves on the sea urchins that grazed among the kelp, these small charismatic mammals seemed to give little back in return. But as Estes dug deeper, he unearthed a far more complex relationship between the otter and its underwater environment, discovering that otters play a critical role in driving positive ecosystem dynamics. While teasing out the connective threads, he began to question our assumptions about ecological relationships. These questions would ultimately inspire a lifelong quest to better understand the surprising complexity of our natural world and the unexpected ways we discover it. Serendipity tells the story of James Estes's life as a naturalist and the concepts that have driven his interest in researching the ecological role of top-level predators. Using the relationships between sea otters, kelp, and sea urchins as a touchstone, Estes retraces his investigations of numerous other species, ecosystems, and ecological processes in an attempt to discover why ecologists can learn so many details about the systems in which they work and yet understand so little about the broader processes that influence these systems. Part memoir, part natural history, and deeply inquisitive, Serendipity will entertain and inform readers as it raises thoughtful questions about our relationship with the natural world.

Sea otter --- Marine ecology --- Biotic communities --- Biocenoses --- Biocoenoses --- Biogeoecology --- Biological communities --- Biomes --- Biotic community ecology --- Communities, Biotic --- Community ecology, Biotic --- Ecological communities --- Ecosystems --- Natural communities --- Ecology --- Population biology --- Biological oceanography --- Marine ecosystems --- Ocean --- Aquatic ecology --- Enhydra lutris --- Enhydra lutris kamtschatica --- Lutra gracilis --- Lutra marina --- Lutra stelleri --- Mustela lutris --- Sea-otters --- Enhydra --- alaska. --- alaskan ecology. --- alaskan ecosystems. --- alaskan naturalist. --- alaskan wildlife. --- aleutian wildlife. --- arctic wildlife. --- bering sea marine life. --- bering sea. --- biology. --- biotic communities. --- ecological textbook. --- ecology books. --- ecosystems. --- environment. --- environmental science. --- kelp forests. --- life sciences. --- marine biology. --- marine ecology. --- marine ecosystems. --- marine wildlife. --- natural history. --- natural world. --- nature. --- science. --- sea otters. --- southwest alaska. --- whales. --- wild alaska.

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Bering Sea controversy. --- Salmon fisheries --- Sealing --- Sea-otters. --- Béring, Affaire des pêcheries de. --- Loutres de mer. --- Phoques --- Saumon --- Law and legislation. --- Chasse --- Pêche commerciale --- Législation. --- Bering Sea Tribunal of Arbitration. --- Great Britain --- United States --- États-Unis --- Grande-Bretagne

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From gray whales giving birth in the lagoons of Baja California to sea otters nestled in kelp beds off California to killer whales living around Vancouver Island-this spectacular stretch of the Pacific Coast boasts one of the most abundant populations of sea mammals on earth. This handy interpretive field guide describes the 45 whales, dolphins, seals, and otters that are resident in, migrate through, or forage from Baja in Mexico to British Columbia in Canada. The guide's rich species accounts provide details on identification, natural history, distribution, and conservation. They also tell where and how these fascinating animals can best be viewed. Introductory chapters give general information on the ecology, evolution, and taxonomy of marine mammals; on the Pacific Coast's unique environment; and on the relationship between marine mammals and humans from native cultures to today. Featuring many color illustrations, photographs, drawings, and maps, this up-to-date guide illuminates a fascinating group of animals and reveals much about their mysterious lives in the ocean.

Marine mammals - Pacific Coast (North America). --- Marine mammals -- Pacific Coast (North America). --- Marine mammals -- Pacific Coast (North America) -- Identification. --- Marine mammals --- america. --- baja. --- british columbia. --- california. --- canada. --- conservation. --- dolphins. --- ecology. --- evolution. --- field guide. --- gray whales. --- kelp beds. --- killer whales. --- marine biologists. --- marine biology. --- marine mammals. --- mexico. --- migration. --- natural history. --- natural sciences. --- nonfiction. --- oregon. --- pacific coast. --- pacific ocean. --- sea mammals. --- sea otters. --- seals. --- species distribution. --- species identification. --- taxonomy. --- vancouver island. --- washington. --- whale species. --- zoologists. --- zoology.