McKINSTRY MC, ANDERSON SH
Wyoming Cooperative Fish and Wildlife Research Unit Box 3166 Laramie, Wyoming 82071, USA
Environ Manage. 1999 Jan;23(1):95-101. doi: 10.1007/s002679900170.
/ A mail survey concerning beaver (Castor canadensis) management in Wyoming, USA, was sent to 5265 private-land managers and 124 public-land managers during 1993. The survey was developed in response to increasing interest in beaver management and beaver reintroduction possibilities. Private-land managers responding to the survey supplied information on 62,859 km2 of land area and 20,037 km of streams. Primary concerns about beaver damage centered on (in decreasing order of importance) blocked irrigation ditches, girdled timber, blocked culverts, and flooded pastures, roads, crops, and timber. Primary benefits that landowners perceive that beaver give them were, in order of importance, elevated water tables, increased riparian vegetation, and increased stock-watering opportunities. Public-land managers also listed these benefits and detriments among their top concerns for beaver. Over 45% of landowners with beaver on their property and all of the public-land managers displayed an interest in a beaver reintroduction program and in more proactive beaver management. KEY WORDS: Beaver; Beaver management; Castor canadensis; Landowners; Mail surveys; Wildlife values; Wildlife damage
1993年，美国怀俄明州向5265名私人土地管理者和124名公共土地管理者发送了一份关于海狸（加拿大海狸）管理的邮件调查问卷。此次调查是为了回应人们对海狸管理及海狸重新引入可能性日益增长的兴趣而开展 的。回复调查的私人土地管理者提供了62859平方千米土地面积和20037千米溪流的相关信息。对海狸造成破坏的主要担忧（按重要性降序排列）集中在灌溉沟渠堵塞、树木环剥、涵洞堵塞以及牧场、道路、庄稼和木材被淹。土地所有者认为海狸给他们带来的主要益处（按重要性排序）依次是地下水位上升、河岸植被增加以及牲畜饮水机会增多。公共土地管理者也将这些益处和损害列为他们对海狸最主要的担忧。超过45%的土地上有海狸的土地所有者以及所有公共土地管理者都对海狸重新引入计划和更积极的海狸管理表现出兴趣。关键词：海狸；海狸管理；加拿大海狸；土地所有者；邮件调查；野生动物价值；野生动物损害
