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  3. Wildlife refuges mainly serve as havens for millions of ducks, geese and other migratory birds. And this is what most people com

Wildlife refuges mainly serve as havens for millions of ducks, geese and other migratory birds. And this is what most people com

admin2011-01-26  40
问题     Wildlife refuges mainly serve as havens for millions of ducks, geese and other migratory birds. And this is what most people come to see. Much of the fun is in knowing and distinguishing the many kinds that are present in great variety. The activities and antics of the bird world are fascinating to anyone taking the time to observe up close. A camera, likewise, will record some of the unusual sights that will be seen.
    Most of the areas are staffed by biologists--individuals who have a great interest in the out doors. They are all enthusiastic naturalists who can help a person to a richer enjoyment of the world of nature. A stop at the refuge headquarters will yield ideas on what to see and where, as well as helpful literature. A few refuges have visitor centers where displays tell the story of the refuge and where there are movies or color slide shows of the area and its wildlife.
    Hunting on a refuge seems inconsistent with its purpose of protecting and saving. However, big game, if allowed to increase to an excessive degree, can be their own worst enemy. They overbrowse their range. Then starvation ruins the herd. But even before nature balances animals to food supply, the destruction of trees and shrubs removes food and cover essential to many smaller animals as well. It’ s good management of the game, and to the sportsman’ s benefit, to crop big game judiciously.
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答案野生动物庇护所是数百万野鸭、鹅类和其他迁徙鸟类的天堂。这正是人们所想看到的结果。人们可以从对汇聚在一起的禽类识别和区分中获得巨大乐趣。对那些花费时间密切观察的人来说，鸟类世界里的各种活动和动作都是很有吸引力的。 很多地方(野生动物庇护所)都由“生物学家们”——那些对户外有着极大兴趣的人提供。他们都是些热心的自然学家，能够帮助人们更好地接触自然。在庇护所的驻足和一些有用的宣传图册会让人们顿获去什么地方，看什么东西的灵感。有些庇护所还设置了游客中心，在那里，一些陈列品向游客介绍了这些庇护所的状况，还有一些电影或者幻灯片展示庇护所及居住其中的野生动物。 在庇护所狩猎似乎有点与它的保护和拯救目的不协调。然而如果放任那些大的动物无限制增长，那他们自己将会成为自身最大的敌人。他们对栖息地过度啃食，随之而来的饥饿将会毁掉整个群落。但是在自然力发挥使动物数量和食物平衡作用之前，对林木灌木的毁坏也会剥夺许多小动物的食物和藏身之处。审慎地减少大型动物数量是自然界游戏好的运行方式，当然这是对户外爱好者有利的。
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