西班牙75%的公园存在外来物种逃脱的危险
文章来源:未知 文章作者:meng 发布时间:2010-11-24 03:29 字体: [ ]  进入论坛
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Lions, bears, monkeys, crocodiles, parrots and iguanas1(美洲蜥蜴) may seem inoffensive at first glance(乍一看) when they're behind bars in zoos. But some exotic species can escape and become invasive species. This has been confirmed by a scientific team that has checked 1,568 animal houses in 63 Spanish zoos. Birds are the animals most likely to escape. "As zoos house a large number of exotic (non-indigenous) species, they could become an entry channel for these species if they escape, with the potential environmental risk that this implies", María C. Fàbregas, lead author of the study and a researcher at the Ethology and Animal Welfare Unit of the Cardenal-Herrera University (UCH) in Valencia, tells SINC.

The study, which has been published in the journal Biological Invasions, reviewed the security of animal housing against creatures escaping, and 75% of the zoos studied were found to be problematic, while 14% of the animal housing was evaluated as "insecure" against the possibility of escape.

"Species that could pose a danger to public health are usually housed in secure accommodation, but those that could represent a danger to the environment if they escaped (invasive species) tend to be in insecure housing", points out Fàbregas. According to the research, birds are the group most likely to be in insecure housing.

Based on a report produced in 2003 by the Ministry2 of the Environment, Rural and Marine3 Affairs (MARM), the research team studied 30 animal houses in each of the 63 zoos. The MARM is currently completing the first inventory4(存货) of zoos and aquaria(水族馆) in Spain.

"Of the 1,568 animal houses studied, 221 were insecure against the threat of the species housed in them escaping, 167 housed non-indigenous species (potentially dangerous to the environment), and of these 21 housed invasive species", the scientist explains.

The animals could escape from 71% of the insecure housing by getting through or over the physical barrier around their accommodation. The rest could get out "because the public could release them or remove them from their cages or tanks".



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1 iguanas becb3e0ccfa8d9d8482868d87293bcc6     
n. 美洲蜥蜴 名词iguana的复数形式
参考例句:
  • Galapagos land iguanas belong to the genus Conolophus, of which there are currently three recognised species. 加拉帕戈斯陆栖鬣蜥属于鬣蜥属,其中目前得到确认的有三个物种。
  • Feral cats in the region could be eating eggs and young iguanas, Gentile speculates. 这一区域的野猫可能正在吃鬣蜥蛋及其幼崽,金泰尔猜测。
2 ministry kD5x2     
n.(政府的)部;牧师
参考例句:
  • They sent a deputation to the ministry to complain.他们派了一个代表团到部里投诉。
  • We probed the Air Ministry statements.我们调查了空军部的记录。
3 marine 77Izo     
adj.海的;海生的;航海的;海事的;n.水兵
参考例句:
  • Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
  • When the war broke out,he volunteered for the Marine Corps.战争爆发时,他自愿参加了海军陆战队。
4 inventory 04xx7     
n.详细目录,存货清单
参考例句:
  • Some stores inventory their stock once a week.有些商店每周清点存货一次。
  • We will need to call on our supplier to get more inventory.我们必须请供应商送来更多存货。
TAG标签: animals species Spanish zoos
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