D After years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Canad a and transported to the park. By last year, the Yellowstone wolf population had grown to more than 170 wolves.Gray wolves in the Yellowstone are a and much of ...
We also consider human attitudes and social norms, thereby allowing for differences in values in our prescriptions. This framework has been implemented in a key hunting area along the northern boundary of Yellowstone and is broadly applicable elsewhere for the management of wildlife species held in ...
【题目】 Scientists studying populations of gray wolves in the USA's Yellowstone National Park have developed a way to predict how changes in the environment will affect the animals'number , body size and genetics , amongst other biological features .T his study provides a powerful mathematical ...
Bring back the Wolves Difficulty:★★★Scientists in the Yellowstone National Park(黄石公园) in Wyoming(怀俄明州),the U.S., recently started a special project to study how good wolves are at protecting other creatures in the park."Traditionally, wolves have a bad image in many countries as ...
Gray wolves once were seen here and there in theYellowstone area and much of the continental UnitedStates, but they were gradually displaced by humandevelopment. By the 1920s, wolves had practicallydisappeared from the Yellowstone area. They wentfarther north into the deep forests of Canada, where...
1(2017全国Ⅲ卷·29) Gray wolves once were seen here and there in the Yellowstone area and much of the continental United States, but they were gradually displaced by human development. By the 1920s, wolves had practically disappeared from the Yellowstone area. They went farther north into the...
D Scientists studying populations of gray wolves in the USA's Yellowstone National Park have developed a way to predict how changes in the environment will affect the animals' number, body size and genetics, amongst other biological features. This study provides a powerful mathematical model to exp...
After years of heated debate,gray wolves were reintroduced to Yellowstone National Park.Fourteen wolves were caught in Canada and transported to the park.By last year,the Yellowstone wolf population had grown to more than 170 wolves. Gray wolves once were seen here and there,in the Yellowstone ...
After years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Canada and transported to the park. By last year, the Yellowstone wolf population had grown to more than 170 wolves. Gray wolves once were seen here and there in the Yell...
作者:James C. Halfpenny 出版社:Riverbend Publishing 出版年:2003-6 页数:104 定价:USD 19.95 装帧:Paperback ISBN:9781931832267 豆瓣评分 目前无人评价 评价: 写笔记 写书评 加入购书单 分享到 推荐 内容简介· ··· Spectacular color photos of Yellowstone National Park's wild wolves plus eye-witness...