题型：阅读理解 题类：常考题 难易度：普通
黑龙江省大庆第一中学2018-2019学年高二下学期英语第三次阶段考试试卷
Scientists have recreated a 1985 study of birds in Peru that shows climate change is pushing them from their natural environment. Thirty years ago, researchers studied more than 400 kinds of birds living on a mountainside in Peru. In 2017, researchers looked again at the bird populations. They found that almost all had moved to higher places in the mountain. Almost all had decreased in size. And, the scientists say at least eight bird groups that move to the higher altitude had died out completely.
Mark Urban, director of the Center of Biological Risk at the University of Connecticut, said this recent study was the first to prove that rising temperatures and moving to avoid them can lead to extinction.
In 1985, Fitzpatrick, director of the Cornell Laboratory of Ornithology, and a team of scientists established a camp alongside a river running down a mountainside in southeastern Peru. He wanted to document where tropical bird groups lived. His team spent several weeks using nets to catch and release birds. They kept detailed notes of birds they caught, saw or heard. In 2016, Fitzpatrick passed his notes, photos and other records to Benjamin Freeman. Freeman who has been researching tropical birds for more than 10 years set out in August and September of 2017 to copy Fitzpatrick's study. His team used the same methods, searching the same places in the same time of year.
Freeman said that the birds moved an average of 98 meters further up the mountain, believing that temperature is the main cause of the birds' movement. Fitzpatrick noted that birds used to living in areas with little temperature change might be especially at risk because of climate change. He said, "We should expect that what's happening on this mountain top is happening more generally in the Andes, and other tropical mountain ranges."
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