Research: The Vacuum Effect
The following research is highlighted to help inform you about this particular topic. You can find more information related to this topic here:
The Vacuum Effect
Just the Facts: The Vacuum Effect
All About The Vacuum Effect
Research Citations
Ji, W., Sarre, S. D., Aitken, N., Hankin, R.K.S., & Clout, M.N. (2001). “Sex …
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All About The Vacuum Effect
Trap-Neuter-Return is the only humane, effective way to stabilize outdoor cat populations. Built on science and real world experience, TNR is sound public policy. Other methods like catch-and-kill and relocation don’t work. They don’t work because of The Vacuum Effect. Our latest video explains what it is, and why …
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NEW VIDEO: All About The Vacuum Effect
… it’s true, and the Vacuum Effect is the reason why. We’ll explain in the latest video in our All About educational series: All About the Vacuum Effect.
Alley Cat Allies has been advocating for a greater understanding of The Vacuum Effect and how it applies to community cats for many years. Now with …
Just the Facts: The Vacuum Effect
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NEW! This publication is now available in Spanish and French.
Removing cats from an area creates a vacuum.
The Vacuum Effect has been documented worldwide in many species. Animal control’s traditional approach has been to catch and kill community cats. While this may temporarily reduce the number of community cats in a …
The Vacuum Effect
… lead to a decrease in cat populations across time may feel counter-intuitive, but it is grounded in a well-documented concept in biology known as the Vacuum Effect.
Understanding the Vacuum Effect is vital to save lives. Animal control agencies, animal shelters, and municipalities must account for the Vacuum Effect in their laws and …
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Fast Facts on Feral Cats and the Vacuum Effect
IMPORTANT: Even in the best case scenarios relocation can be very dangerous for cats and ineffective. Relocation is stressful for cats and since community cats are not socialized to people they can be unpredictable. Community cats bond to their outdoor homes and will try to go backin some cases cats have died in the process …
The Vacuum Effect: Why Catch and Kill Doesn't Work
Alley Cat Allies presents a new resource that adds to the growing research that supports Trap-Neuter-Return.
The Vacuum Effect: Why Catch and Kill Doesn’t Work shows through scientific research and other evidence that removing cats from an area by killing or relocating them is not only cruel, but pointless.
It also includes …
OUR WORK
… junk science, and baseless claims. Alley Cat Allies works to set the record straight and stop the killing.
The Truth About TNR
Why Catch and Kill Doesn’t Work: The Vacuum Effect
TNR is NOT Abandonment
Exposing Misrepresentation of TNR in The New Yorker
Junk Science Kills Cats
Breaking Down the Bogus Smithsonian Catbird Study
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Alley Cat Allies Exposes Misrepresentation of TNR in The New Yorker
… again. However, trapping cats and “euthanizing” them in shelters is not some untested idea; it was the status quo for decades and failed miserably due to the Vacuum Effect—a phenomenon in which other cats move in to take advantage of the resources that sustained the colony that was removed. Alley Cat Allies launched TNR …
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Alley Cat Allies Condemns Comments About Drowning Community Cats
… of community cats, the population quickly rebounds as surviving cats move in to take advantage of the newly available food and shelter. This phenomenon known as the Vacuum Effect has been scientifically observed in many species.
Alley Cat Allies offers our decades of expertise and support in establishing an effective TNR program for your community …
Go to: Alley Cat Allies Condemns Comments About Drowning Community Cats