Chapter 625: Ecological problem

In terms of ecological system research, Chen Xin can't help much. After all,

this is not his area of expertise.

However, he is good at biological cultivation.

After all, when cultivating large hardy wolfhounds before, the entire project

was personally hosted by Chen Xin. The cultivation process was also involved

in the whole process, even including the training and actual use after the

individual was cultivated. Chen Xin participated in the training and can be

regarded as rich in experience.

It's just that the animals needed to build an ecosystem are not large animals,

or the demand for large animals is not that great.

In the naturally formed ecosystem and food chain, large animals usually live

at the top of the food chain, which is the last link in the closed loop of the

entire ecosystem.

This is the niche of the wolf in the cycle where the rabbit eats grass, the

wolf eats the rabbit, and the wolf dies in the rotten ground, and then grows

grass.

This niche is necessary in the natural cycle, because if the rabbit has no

natural enemies, it will reproduce unrestrictedly, eventually breaking the

limit that the environment can withstand, leading to the collapse of the

entire ecosystem.

The Kangaroo Country once had a deep understanding of this, and they were

still troubled by it even before the disaster.

The kangaroo country in those days unscrupulously slaughtered the native

thylacines and other top creatures of the food chain. As a result, the local

rabbits, kangaroos and other creatures lost their natural enemies. The

industry was hit hard, and the kangaroos were flooded.

At that time, the kangaroo country also tried to make some efforts, such as

banning the hunting of thylacines and offering bounty for rabbits and

kangaroos, but the results were very small in the end, and it even needed the

country to introduce wolves from abroad to curb the reproduction of rabbits.

The reason is that they killed all the creatures at the top of the niche,

causing the entire biological chain to lose balance.

But if it is placed in a small ecological environment such as a dome city, the

existence of such large predators does not seem to be much necessary.

It is easy to understand that such a small ecological environment has limited

carrying capacity and cannot maintain the survival needs of large predators.

This is why the old saying goes that there is no room for two tigers in one

mountain. Large predators in the wild will have their own territories, and the

purpose of expelling other large predators from the territories is to ensure

that they can get enough food.

However, a small ecological environment such as a dome city is still

inseparable from carrying some herbivorous or omnivorous animals. Large

predators such as wolves and tigers are really unnecessary, and they may also

threaten the safety of urban residents. .

As for smaller predators such as cats and dogs, they are also not suitable for

Dome City, but the reason for their inappropriateness is breeding problems.

Those who have a little understanding of the ecosystem will know that in the

ecological niche, the more organisms at the top of the food chain, the scarcer

the number and the more difficult it is to reproduce.

The top predators, such as tigers and lions, can produce three to four cubs in

one litter, which is already a very productive number. Usually there are only

one or two, and they reproduce once a year. The population is very large.

Difficult to expand.

As for small and medium-sized predators like cats and dogs, the relative

reproductive capacity is stronger. Three or four births are common.

If it is a smaller animal, their reproduction number will be greater. A small

creature like a mouse with more than a dozen babies per litter is not enough

for small creatures.

The smaller the size, the more you can only rely on quantity to ensure the

continuation of the population.

This is not the restriction of the rules of the world, but the inevitability

of biological evolution and ecological evolution.

And the most important thing is that if the dome city wants to maintain the

self-sustainment, operation and balance of the ecosystem, it needs more of

those tiny creatures that we don’t see at all, such as earthworms, rather than

cats, dogs, and cats. They are all big guys.

"Then what if you want to raise cats and dogs?" At lunchtime, listening to

Chen Xin talking about these issues, Mo Qingyan asked Chen Xin with great

concern.

In fact, she has always wanted to raise a cat, a cute little kitten, which is

completely different from Qin Lan, who wants to raise a dog and train to

become a police dog.

"It depends on how you want to raise it. If you keep it at home as a pet, it

is not a big problem. Just make sure that cats and dogs have enough food,

neuter them, and don’t let them run around, just like before. Pets are almost

the same and will not cause too much burden to the ecology." Chen Xin really

seriously considered this issue. Cats and dogs are one of the most intimate

animals with humans, and there must be many people who want to keep cats and

dogs.

When disaster strikes, it is already very difficult to protect people’s

survival. Pets such as cats and dogs are not considered at all. Therefore, in

addition to the possibility of keeping some pets or animals in private

shelters, the official shelters are No one brought pets in.

Now that the situation is getting better and the supply of supplies is

guaranteed, there will definitely be people like Mo Qingyan who want to keep

pets to accompany her.

This is not a big deal in Chen Xin's view. Although some people will say that

everyone can't eat enough to feed their pets, but in Chen Xin's view, as long

as people who want to keep pets are willing to pay more It’s not something

that can’t be done, and the remuneration obtained can afford the consumption

of raising a pet.

But after hearing his answer, UU Reading www.uukanshu.com Mo Qingyan had some

more ideas, so she asked him: "Then if the pet runs out and becomes a stray

cat and dog, it will how is it?"

"If this is the case, you can only kill." Chen Xin's words revealed a trace of

cruelty, but he patiently explained: "The damage to the ecology by stray cats

and dogs is very serious. Dogs are a little better, nothing special. Strong

desire to hunt.

But in the case of cats, they are an animal full of hunting impulse in their

bones. They are also rare animals in the animal kingdom that hunt for fun.

Even if a cat is neutered, it will not reproduce its offspring. It poses a

great threat to the local ecology.

Therefore, if stray animals like cats and dogs appear in the wild in the dome

city, they can only be killed. After all, the ecology of the dome city is much

more fragile than the natural ecology in the original urban environment. Once

destroyed, it may bring about The collapse of the entire ecological

environment. "

"Well, I can understand that the stray cats and dogs themselves are a very

harmful problem." Mo Qingyan showed an understanding attitude towards Chen

Xin's attitude on this issue, but her emotions were obviously still the same.

It seems a little depressed.

Book Reading House