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What is the vacuum effect?

The vacuum effect is a situation arising when feral cats are removed from an environment. Other cats then move in to take advantage of the food source that is available. (Something brought those cats there in the first place, be it rodents available to eat, or human intervention) They will quickly fill the space from which the cats were removed. These new, usually unsterilized cats will breed to the capacity of the site.

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PO Box 2477
Warren OH  44484.