当前位置:主页 > 最新新闻 >
最新新闻
联系我们

Think cats are good at keeping rats away? Think again

文章出处:admin 发表时间:2018-10-10

ShareTweet

A new innovative study shows that cats really aren’t really very good predators of rats, and employing this strategy often backfires.

While adorable, these small felines aren’t really good at controlling rat populations — and they might end up killing other animals insteaAAAAAAAA>While cats may be the undisputed kings and queens of the internet, they weren’t always this popular — and in many parts of the world, they still aren’t. Historically, the reason why cats and humans go so well together was a very practical one: cats keep mice (and other related species away). But in the case of rats, things might not be as clear.

Despite what you may read in some media, it’s not because the rats can fight the cats off — as anyone who’s witnessed a meeting between a cat and a rat can attest, rats are woefully unprepared for the fight, while cats are supreme killing machines. They say that a desperate rat is capable of anything, and that may be true — but even when the two are comparable in size, if the cat wants to kill the rat, it can almost always do so.

The reason doesn’t have anything to do with fighting at all — but rather, with avoidance.

“Like any prey, rats overestimate the risks of predation. In the presence of cats, they adjust their behavior to make themselves less apparent and spend more time in burrows,” says the study’s lead researcher Dr. Michael H. Parsons, a visiting scholar at Fordham University. “This raises questions about whether releasing cats in the city to control rats is worth the risks cats pose to wildlife.”

“New Yorkers often boast their rats ‘aren’t afraid of anything’ and are the ‘size of a cat’,” Parsons adds. “Yet cats are commonly released to control this relatively large, defensive and potentially dangerous prey.”

He and his colleagues took advantage of a favorable situation — when feral cats invaded a New York City waste recycling center, which also hosted a hefty population of rats. They monitored the behavior and movement of microchipped rats in the presence of cats, and they also set up motion-capture video cameras to quantify the effect of the cats on the rats.

本文源自: 环亚娱乐