Why is the impact on one or more species of plants or animals (deforestation, hunting) often leads to disturbances in the living conditions

Why is the impact on one or more species of plants or animals (deforestation, hunting) often leads to disturbances in the living conditions of all other elements of the community of organisms?

The species in the community constantly interact (feed on each other, give a habitat, compete for food, etc.), and the death of one organism will entail the death of those organisms that were associated with it (because the source of nutrition will disappear, for example )

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