From MarineSpecies Introduced Traits Wiki
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.
This is the common definition for keystone species, other definitions can be discussed in the article
- ↑ www.wikipedia.org 26 August 2009