The study of biocenosis; the scientific examination of communities of organisms and their relationships within specific environments.
From biocenosis (Greek bios 'life' + koinos 'common') + -logy (study of). Developed in early 20th-century ecology to systematically study organism communities.
Biocenology shows that ecosystems are like cities—remove one organism and the whole community can collapse, which is why scientists get so worried about invasive species.
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