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建立人际资源圈Causes_Of_Endangered_Species
2013-11-13 来源: 类别: 更多范文
Causes Of Endangered Species
Causes Of Endangered Species
CAUSES OF ENDANGERED SPECIES The term endangered is used by international and
national organizations to define plants and animals currently in danger of becoming extinct.
Although the term endangered is universally used, the definition of an endangered species is greatly
varied. In most cases, the factors causing an organism to become endangered are human- related.
When discussing the causes of endangered species, it is important to understand that individual
species are not the only factors involved in this dilemma. Endangerment is a broad issue, one that
involves the habitats and environments where species live and interact with one another. Although
some measures are being taken to help specific cases of endangerment, the universal problem
cannot be solved until humans protect the natural environments where endangered species dwell.
Back in the fall of 1973 Congress passed the Endangered Species Act, the point of which was to
identify the plants and animals in the most trouble and come up with plans for saving them. The
effort has probably been as controversial as it has been successful (Institute of Advanced Studies
39). Of the more than 1,400 species designated as endangered, only 18 have recovered to the
point where
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