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- W45508700 abstract "Historical records indicate that the North American river otter (Lontra canadensis) occupied most major drainages in the continental United States and Canada at the time of European settlement. By the early 1900s, unregulated trapping, water pollution, and other disturbances to aquatic and riparian habitats had caused otter populations to decline or become extirpated in many areas. During the 1970s, many wildlife management agencies developed strategies to restore or enhance otter populations, including implementation of otter reintroduction projects in 21 states and 1 Canadian province. These progressive management strategies combined with widespread improvements in water quality have resulted in the recovery of many extirpated otter populations. Although native otter populations have received considerable scientific and management attention in North America, the majority of research and conservation related activities have focused on various aspects of otter reintroduction projects. Consequently, there is a particular need to enhance the understanding of ecological aspects of the continent’s native otter populations. The Otter Action Plan (OAP) is being prepared through the International Union for the Conservation of Nature and Natural Resources’ Otter Specialist Group and is intended to provide a comprehensive and current review of research and conservation initiatives that have been undertaken for the world’s otter species. Hopefully, the document will serve to focus future research and conservation initiatives for the North American river otter. History, Evolution, and Status of Otter Conservation in North America The first European settlers in North America encountered a virtually undisturbed landscape that supported large and diverse populations of wildlife. These early settlers most likely viewed the availability of wildlife and other natural resources as limitless. Consequently, there were no limits or regulations imposed to control the consumption of these resources. Unregulated hunting and trapping had severe impacts on wildlife populations, becoming more pronounced as the human population grew and expanded across the landscape (TREFFETHEN 1975). Unfortunately, by the late 1800s many species of wildlife had experienced severe population declines, including extirpations and, in some cases, extinction. During the 1890s concern expressed by recreational hunters regarding declining Otter Action Plan By Thomas L. Serfass, Ph.D. Photo by Eric Peterson" @default.
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- W45508700 title "Food Habits of the North American River Otter (Lontra canadensis)" @default.
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