The Behavioral Ecology of Sea Otters at Amchitka Island, Alaska

长期，连续记录个别海獭在一个 需要检查接近平衡的人口 关于人口状况如何影响社会的假说 行为觅食和繁殖 类似的数据已经 存在于威廉王子湾的人口扩张中， 阿图岛，阿拉斯加和加州。 Siniff博士建议 在不同年龄的不同个体中收集数据， 性别在Amchitka岛，那里的人口一直在 均衡 这些记录将与互补的 数据来自不断增长的人口。 无线电 通过外科手术植入的发射器将用于定位 动物并遵循活动，激动 相互作用、生存和繁殖。 Siniff博士 认为这种个人层面的比较， 已知状态的种群从未被任何 食肉动物 这种人口评估方法 应该证明对管理现在不断扩大的海獭是有用的 人口数量。

Long-term, continuous records on individual sea otters in a population that is near equilibrium are needed to examine hypotheses concerning how population status influences social behavior, foraging and reproduction. Similar data already exists for expanding populations at Prince William Sound, Attu Island, Alaska and California. Dr. Siniff proposes to collect data among various individuals of different ages and sexes at Amchitka Island, where the population has been at equilibrium. These records will be compared with complementary data from populations which are increasing. Radio transmitters, surgically implanted, will be used to locate the animals and to follow the activity, agonistic interactions, survival and reproduction. Dr. Siniff believes that such individual-level comparisons between populations of known status have never been made for any carnivore species. This approach to population assessment should prove useful in managing now expanding sea otter populations.