期刊
ECOLOGICAL ECONOMICS
卷 52, 期 3, 页码 273-288出版社
ELSEVIER
DOI: 10.1016/j.ecolecon.2004.10.002
关键词
environmental and economic cost; threatened or endangered species; alien-invasive species
Invading alien species in the United States cause major environmental damages and losses adding up to almost $120 billion per year. There are approximately 50,000 foreign species and the number is increasing. About 42% of the species on the Threatened or Endangered species lists are at risk primarily because of alien-invasive species. (c) 2004 Elsevier B.V. All rights reserved.
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