Keystone species

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Definition of keystone species:
A keystone species is a species that has a disproportionate effect on its environment relative to its abundance. Such species affect many other organisms in an ecosystem and help to determine the types and numbers of various others species in a community.[1]
This is the common definition for keystone species, other definitions can be discussed in the article


References

  1. www.wikipedia.org 26 August 2009