Chapter 755

Fang ye said: "under normal circumstances, a healthy ecosystem will form a network relationship, in which the number of species increases and decreases, but they are maintained within a certain range, so that the ecosystem maintains a dynamic balance.

However, when the cats that do not belong to them join, they prey on birds, weaken the restriction on insects in the ecosystem, and make the Raptors and medium-sized mammals that feed on small animals lack food.

Ecosystem is formed through long-term evolution. After hundreds of years of competition, exclusion, adaptation and mutual benefit, the species in the system have formed a close relationship of interdependence and mutual restriction.

After an alien species is introduced, it may be excluded from the system because it cannot adapt to the new environment; If there are no competing or restricting organisms in the new environment, it will become a real intruder, break the balance, change or destroy the local ecological environment and seriously destroy biodiversity.

About the ecological disaster caused by cats, the most famous is a cat named tibers, which killed all the unique bird wrens on Stephen island in a year.

However, it was a closed island environment, and no animal could deal with the perfect predator like cat. In China, in the wild, there were leopard cats and red foxes in the same niche to restrain them, and stray cats could not make waves.

However, in cities, stray cats that should have been eliminated by nature can eat kitchen waste and even be fed by humans, allowing them to reproduce in large numbers, reaching a population density that cannot be achieved by small predators in nature.

The number is abnormal. In addition, they are animals that are full and bored. They play and hunt, so stray cats are a big problem in the city.

Not only the impact on birds and other animals, but also infectious diseases such as toxoplasmosis and rabies, which bring hidden dangers to public health and safety. "

Some netizens who like cats and even feed them can't help feeling ashamed after listening to Fang Ye's explanation.

When I fed them before, I didn't understand these. I just felt that I was loving and kind.

It turns out that random feeding is not a good thing. It belongs to the same type of operation as random release.

Netizens can't help asking, "what should I do?"

Fang ye said, "first of all, it's the root cause. Don't let the cat become a stray cat.

Keeping pets is a matter of money and energy, but many people only think of the fun brought by pets before keeping pets. They don't think of the trouble brought by pets. If they don't want to keep pets, they abandon them at will, which is very irresponsible.

For example, in the University, if you want to keep a pet, the school will not let you keep it. You can keep it outside, and you won't take it away after graduation. In this way, there are more and more stray cats on the campus.

If someone keeps a cat loose, or the cat slips out of the window and can't be found. If you keep a cat, don't keep it loose. Remember to seal the window, which can effectively avoid this kind of thing. The cats that have been kept at home are also very healthy and long-lived. This is a fact. You don't have to think about letting them go out for activities. Going out may harm a few birds.

For stray cats, control yourself and don't feed them.

The living standard of stray cats is certainly not as good as that of domestic cats. They will be hit by cars and thrown stones. They have to go hungry and turn over the garbage to eat. They compete with other stray cats for territory. In winter, they are frozen into popsicles. You feed them only temporarily to improve their living conditions. When they reproduce, there will be a group of poor little stray cats in the city who will be frozen and turn over the garbage.

While saying how pathetic stray cats are and how hateful the people who abandoned them are, feeding them is not becoming a person you hate.

The other is sterilization!

Some people are disgusted with the sterilization of cats. They feel that castration after sterilization has deprived them of the experience of a part of their life, deprived them of their reproductive rights, and the cats are unhappy.

In fact, this idea is entirely from the perspective of human beings.

Animal mating is only based on instinct. Most of them do not feel happy or even extremely painful experience in mating. Dingding of cats has barbs.

After sterilization, the cat will not suffer from estrus and mating. It is healthier. What's wrong with it?

If you think that children are not cats, how can you know the happiness of cats? If you are not cats, how can you know that cats are not happy to mate, or if you want to let cats mate at least once, give birth to offspring, and then sterilize them after they have a satisfactory birth? This idea is also based on human perspective. Cats do not have the concept of "I want to have a child", and their reproduction is only driven by genetic instinct.

We can calculate how many offspring cats can produce if they reproduce indefinitely.

A female cat can give birth to 12 at most and 2 at least, usually 3-6. Cats with good physical strength can give birth twice a year.

A pair of non sterilized cats, in an ideal state, can reproduce 2 million cats in 8 years.

You want to keep its reproductive rights. What about its children's reproductive rights? Where's the child's child? Are these offspring capable of raising and taking care of? Can't take care of it, abandon it or give it to others? Not everyone has the ability to keep a good cat. Just give it to others and others will abandon it for a while. Doesn't this become the source of stray cats? "

Fang Ye paused and continued: "capturing, sterilizing and releasing, referred to as TNR, is a more humane way to reduce the number of stray cats.

After the volunteers capture the cats in a safe way, they will ask a qualified veterinarian to sterilize them and immunize them. After the operation, the cats will be released to their original living range, and their ears will be cut with a gap for recognition to prevent them from being subjected to secondary surgery. Cats with friendly relatives can help them find adoptive families.

If you want to keep a cat, I recommend adopting instead of buying.

TNR is highly praised by many people, but it is not a panacea. It needs to block the source of stray cats, achieve a sterilization rate of 71% to 94%, and carry out centralized feeding management. Only in this way can it be effective, and the requirements are very strict. The most important thing is not to feed or abandon at will.

In fact, there is no problem with three or five sterilized stray cats in a community. If you have nothing to do, the happiness of residents in the community can be improved. Children can cultivate love and be close to nature.

Protection work often starts with such simple kindness.

But hundreds of thousands of stray cats in a city far exceed the carrying capacity of the ecosystem.

As for the hunting and killing of stray cats, the problem is not a simple ecological problem, but also a social problem.

Simple and rough hunting can effectively reduce the number of stray cats, but it will arouse the disgust of many people.

It can only be used when the ecological environment is seriously threatened, protecting endangered wild animals or controlling severe infectious diseases.

In fact, euthanasia is also a good way, but it is also a matter of acceptance, which requires us to continue to popularize science. "