男友太凶猛1v1高h,大地资源在线资源免费观看 ,人妻少妇精品视频二区,极度sm残忍bdsm变态

您現在的位置: Language Tips> News English> News Digest  
 





 
研究:遛狗“危害”鳥類
[ 2007-09-06 17:17 ]

近日,由澳大利亞新南威爾士大學進行的一項研究顯示,遛狗使得野生鳥類的種類下降35%,鳥類總數下降41%。科學家因此呼吁,禁止人們在鳥類保護區遛狗。然而,遛狗人士對此提議并不贊同。他們認為只要遵守有關規定,遛狗不會對鳥類產生影響。

Dog walking 'harms' bird diversity.

Dog walking should be banned in sensitive conservation areas, scientists who have studied the effect the pets have on the environment said on Tuesday.

The presence of the animals leads to a 35 percent drop in wild bird diversity and a 41 percent drop in abundance, according to the Australian study.

Peter Banks and Jessica Bryant, at the University of New South Wales, carried out the study in a woodland 56km north of Sydney. They compared the effect of a person walking a dog on a lead, a lone walker, two walkers together and no walkers at all on birds they observed in the area. They repeated each condition 15 times and used a variety of dog breeds.

They found that bird numbers dropped by 41 percent and diversity by 35 percent after a dog had been walked through the forest, compared with the control condition in which there were no walkers.

This result did not depend on whether the area they studied was popular with dog walkers or not. Ground-dwelling birds were particularly affected, with half of the species in control sites absent from dog-walked sites.

It was not just the presence of dogs that spooked the birds. A person walking through the woods had about half the detrimental effect that a dog walker had, but it made no difference whether there were one or two walkers.

The authors write in the journal Biology Letters: "Conservation managers often ban dog walking from natural areas fearing that wildlife will see dogs as potential predators and abandon their natural habitats, resulting in outcry at the restricted access to public land ... These results argue against access by dog walkers to sensitive conservation areas."

A spokesman for the Royal Society for the Protection of Birds said: "There is a widely held suspicion that the presence of dogs can be a disturbance. And obviously this study does add weight to that."

Dog walkers deny that their pets are bad for birds. A spokesperson for the Kennel Club said: "The Kennel Club does not consider that dog walking in the countryside in the UK has any detrimental effect on birds provided walkers stick to the rules of the countryside."

(The Guardian)

(英語點津 Linda 編輯) 

 
 
相關文章 Related Stories
 
         
 
 
 
 
 
         

 

 

 
 

48小時內最熱門

     
  吵架英語三十句
  尼日利亞議長叫停銀行“美女營銷”
  英語和漢語之間的詞匯空缺
  全國開展“無車日”活動
  五個手指怎么說

本頻道最新推薦

     
  難忘“處女作”
  韓國大兵也愛美
  貝嫂千里運薯片
  卡米拉:不出席戴妃逝世十周年紀念活動
  奇跡:被困130小時礦工自救生還

論壇熱貼

     
   "電視選秀"怎么翻譯?
  how to translate "造星"
  how to translate "特供豬"?
  參加BBC在線競賽 獲免費倫敦游機會!
  how to say "代言"
  “試婚”怎么說






主站蜘蛛池模板: 资源县| 玛曲县| 长沙县| 武平县| 黑龙江省| 贵定县| 菏泽市| 贵南县| 麦盖提县| 南川市| 德保县| 中宁县| 松原市| 桐梓县| 绥滨县| 民县| 沾益县| 奇台县| 任丘市| 长兴县| 柞水县| 枣阳市| 牙克石市| 山西省| 许昌市| 普定县| 大邑县| 大冶市| 界首市| 长丰县| 香格里拉县| 大丰市| 赤峰市| 共和县| 龙川县| 寿宁县| 侯马市| 岱山县| 同仁县| 阿尔山市| 新丰县|