鸟类能给城市带来经济活力
文章来源:未知 文章作者:enread 发布时间:2015-04-09 07:20 字体: [ ]  进入论坛
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Is it worth having birds in the city? If you live in Seattle or Berlin, the answer is yes, to the tune1 of $120 million and $70 million a year for each city, respectively.
 
A new study published last month in the journal Urban Ecosystems2 tries to determine what economic value residents in two comparable cities place on having birds in their backyards and parks. Researchers at the University of Washington and Humboldt State University compared two types of common birds -- finches and corvids -- in both cities, asking residents how much they would pay to conserve3 the species and what they spend, if anything, on bird food.
 
They found that both cities place a "sizeable" value on bird enjoyment4, somewhat more so in Seattle. Residents in both cities spend more than the average U.S. adult on bird-supporting activities, suggesting that people from Seattle and Berlin value having birds around their homes and neighborhoods more than in most cities.
 
These activities, in turn, also show that birds benefit the local economies as residents invest in food and nesting structures.
 
"This paper shows that our interactions with birds actually have a pretty high economic return to the community where you live," said John Marzluff, a UW professor of environmental and forest sciences and the paper's co-author. "We know that having a livable, green community that attracts birds also increases the value of homes in that area. This paper shows there's an economic service birds are providing."
 
Researchers say this is the first look at estimating the economic value of enjoying common birds in an urban setting. Previous studies have assessed people's willingness to pay to see rare or charismatic birds and to pay for conservation of endangered species, but these instances don't affect most people.
 
"No one has really looked at what people will be willing to pay for these more common species, ones that aren't necessarily endangered or threatened. We wanted to address that because people living in urban areas don't encounter endangered species on a daily basis," said co-author Barbara Clucas, a lecturer at Humboldt State University who completed this study as a postdoctoral researcher at the UW.


点击收听单词发音收听单词发音  

1 tune NmnwW     
n.调子;和谐,协调;v.调音,调节,调整
参考例句:
  • He'd written a tune,and played it to us on the piano.他写了一段曲子,并在钢琴上弹给我们听。
  • The boy beat out a tune on a tin can.那男孩在易拉罐上敲出一首曲子。
2 ecosystems 94cb0e40a815bea1157ac8aab9a5380d     
n.生态系统( ecosystem的名词复数 )
参考例句:
  • There are highly sensitive and delicately balanced ecosystems in the forest. 森林里有高度敏感、灵敏平衡的各种生态系统。 来自《简明英汉词典》
  • Madagascar's ecosystems range from rainforest to semi-desert. 马达加斯加生态系统类型多样,从雨林到半荒漠等不一而足。 来自辞典例句
3 conserve vYRyP     
vt.保存,保护,节约,节省,守恒,不灭
参考例句:
  • He writes on both sides of the sheet to conserve paper.他在纸张的两面都写字以节省用纸。
  • Conserve your energy,you'll need it!保存你的精力,你会用得着的!
4 enjoyment opaxV     
n.乐趣;享有;享用
参考例句:
  • Your company adds to the enjoyment of our visit. 有您的陪同,我们这次访问更加愉快了。
  • After each joke the old man cackled his enjoyment.每逢讲完一个笑话,这老人就呵呵笑着表示他的高兴。
TAG标签: economic city birds
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