EXCERPT FROM: –> 12 Year Study Article
The study focused on one Israeli city (Rishon LeZion) and tried out different population-control methods over three 4-year periods. In the first, there was no population intervention. In the second, the researchers organized an intensive program of neutering of cats in half of the fifty zones of the city, while the remaining zones served as a control group in which the cats were left without any intervention. In the third period, neutering was applied to the entire cat population of the city. The study found that neutering in only half of the city zones did not reduce the cat population.
MY THOUGHTS: We, who are involved in TNR, need to consider how many cats are in the same area that we are working to stop the multiplication in community cats, are also home to cats that are not neutered and owned by people? These people may not necessarily choose to neuter their cats. The test area in the article above considered that.