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.
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Keystone Species
National Marine Sanctuary Foundation
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A keystone species, European aspen (Populus tremula L.), in boreal forests: Ecological role, knowledge needs and mapping using remote sensing - ScienceDirect
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