Community Ecology. Chapter 6. Species interactions. Species interactions are the backbone of communities Most important categories Competition = both species are harmed Predation, parasitism, and herbivory = one species benefits and the other is harmed Mutualism = both species benefit.
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Competition is reduced when two species become more different
In exchange for the plant nectar, the animals pollinate plants, which allows them to reproduce
Primary consumers = second trophic level
A human vegetarian’s ecological footprint is smaller than a meat-eater’s footprint
Prevention, rather than control, is the best policy