By Shawn E. Larson, James L. Bodkin, Glenn R VanBlaricom
Sea otters are sturdy symptoms of ocean overall healthiness. furthermore, they're a keystone species, supplying a stabilizing impression on atmosphere, controlling sea urchin populations that will in a different way inflict harm to kelp woodland ecosystems. The kelp woodland surroundings is important for marine organisms and comprises coastal erosion. With the worries concerning the imperiled prestige of sea otter populations in California, Aleutian Archipelago and coastal components of Russia and Japan, the final a number of years have proven progress of curiosity culturally and politically within the prestige and maintenance of sea otter populations.
Sea Otter Conservation brings jointly the substantial wisdom of well-respected leaders within the box, supplying perception into the greater than a hundred years of conservation and learn that experience ended in restoration from close to extinction. This ebook assesses the problems influencing customers for persisted conservation and restoration of the ocean otter populations and offers perception into the right way to deal with destiny international changes.
- Covers clinical, cultural, fiscal and political parts of sea otter conservation
- Provides advice on find out how to deal with threats to the ocean otter populations within the face of destiny international changes
- Highlights the results that interactions of coastal animals have with the marine surroundings
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Additional info for Sea Otter Conservation
FORM AND FUNCTION In this section I will briefly describe some of the sea otter’s basic biology and discuss how several aspects of the species’ form and function are integral to what I see as the three main dimensions of their conservation and management—exploitation and recovery, fishery conflicts, and marine pollution. Insulation Homeothermy at or around 37 C is a feature of all birds and mammals, demanding in turn a careful balance between heat production and heat loss. In contrast with pinnipeds and cetaceans, which use blubber for insulation against heat loss to the cold aquatic medium in which they live, sea otters depend entirely on their fur.
J. Mammal. 83, 893À906. , 2002b. Loss of genetic diversity in sea otters (Enhydra lutris) associated with the fur trade of the 18th and 19th centuries. Mol. Ecol. 11, 1899À1903. , 1960. Status and distribution of sea otters in Alaska. J. Mammal. 41, 172À182. , 1962. The History and Status of Sea Otters in Alaska. PhD dissertation. Purdue University, New York. , 1980. Home range and territoriality of sea otters near Monterey, California. J. Wildl. Manage. 44 (3), 576À582. , 1962. Sublittoral ecology of kelp beds of the open coast area near Carmel, California.
Prey type and size depends on location, habitat type, season, and length of occupation (see Chapters 6 and 10 for further analyses of sea otter diets). , 1981). In protected bays with mixed sediments, otters mainly consume infaunal clams (Saxidomus nuttallii and Tresus nuttallii; Kvitek and Oliver, 1988). Along exposed coasts of mixed sediments, the Pismo clam (Tivela stultorum) is a common prey (Stevenson, 1977). , 1989). The predominately mixed-sediment habitats of southeast Alaska, Prince William Sound, and Kodiak Island support populations of clams that are the primary prey of sea otters.
Sea Otter Conservation by Shawn E. Larson, James L. Bodkin, Glenn R VanBlaricom