What is a Keystone Species?
Por um escritor misterioso
Descrição
The term “keystone” is an architectural reference to a wedge-shaped stone at the top of an archway.
Wildlife Roundtable: The role of Keystone species
KEYSTONE SPECIES A keystone species is a plant or animal that plays a unique and crucial role in the way an ecosystem functions. Without keystone species, - ppt video online download
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