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keystone predator
The dominant predator that has a major influence on community structure. For example, sea otters are a keystone predator in kelp beds. Sea otters eat urchins that feed on kelp which house a huge diversity of other organisms. When sea otter populations are lowered in an area the kelp beds are generally reduced and urchin barrens appear.
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- Part of Speech: noun
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- Industry/Domain: Biology
- Category: Marine biology
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