Manage a Colony

Why Killing doesn’t work: The Vacuum Effect

Well-documented among biologists, the vacuum effect describes what happens when even a portion of an animal population is permanently removed from its home range. Sooner or later, the empty habitat attracts other members of the species from neighboring areas, who move in to take advantage of the same resources that attracted the first group (like shelter and food). Killing or removing the original population does nothing to eliminate these resources; it only creates a “vacuum” that will inevitably draw in other animals living nearby. Learn More

Are you caring for a feral cat colony and are ready to bring cats in to be spayed or neutered?

Before you set out to trap the cats, please be certain to read through the preparation materials on Alley Cat Allies – click here