How to control the invasive species?Come, let me tell you a stupid story

How to control the invasive species? Come, first listen to me to tell you a story, about witty humans and an unlucky island.

Text | fangorn

This article is reproduced from the WeChat public account "fruit shell" (ID: guokr42). The original first was released on July 5, 2022. The original title was "How to control the invasive species? Come, let me tell you a stupid story "does not mean looking at the view of the think tank.

There is an island on the southeast of Australia called Macquarie Island. The area is 128 square kilometers. A little bigger than the Beijing East and West City District.

This island used to be a good place. Many birds including penguins are produced.

One day in 1810, the crew members of the pocket discovered the island, as well as a large number of various seals above.

The environment here is not suitable for humans, so only people with seals are visited regularly. But they brought mice. Mouse likes here (bird eggs and young birds). Mouse is also very good at raising little mice.

Soon after, there were a lot of mice and less birds on Macquarie Island.

The hunter found that his hut was always annoying. Around 1820, a witty hunter thought of using cats to control the genius of mice.

Cats like mice very much. But cats also like to eat birds, and they are also good at raising kittens.

Soon after, there were many cats, less mice and fewer birds on the island.

In 1870, a hunter named William Elder missed the rabbit meat from his hometown, so he witnessed a few rabbits on the island.

Rabbit ran away.

Rabbit likes to eat grass. Rabbit was also eaten by cats, but he was particularly good at rabbit. The grass that was eaten caused the land to be barren, the ground was eroded, and the bird's nest (especially the penguin nest) on the ground was damaged.

Soon after, there were more cats, many rabbits, many rats and fewer birds on the island.

In 1880, the witty humans tried to control the rabbit, so they brought white Itachi to New Zealand and Macquarie Island.

The white hedor eats rabbits, but there are seabirds and seabird eggs lying on the ground everywhere. Don't be white.

Soon after, there were white heylins, cats, rabbits, mice and fewer birds on the island.

During the same period, witty humans found that New Zealand and other places were very suitable for rats as sources of fur and meat.

There are no natural enemies, and cats do not like to care.

At this point, there are negative rats, white Itachi, cats, rabbits, mice and few birds on the island.

Although there are a lot of human standards.

Around 1880, the introduction of rabbits caused a large number of cats. After the babies, many cats began to develop new food resources, such as the Machali parrot.

This is the close relative of the Macquari parrot in New Zealand, not its body, because the Macquarie parrot was destroyed in 1891.

In 1919, the behavior of whaling and seal catcher stopped. In 1933, Macquarie became a protected area.

At this time, Australian scientists are studying how to eliminate rabbits on the mainland, and witty humans are decided to copy on the island.

First, they introduced rabbit flea in 1968 and did not succeed, so in 1978, they used the rabbit mucopo tumor virus.

The good news was that the number of rabbits dropped from 130,000 to 10,000.

The bad news is that the remaining 10,000 are immune.

The ugly news is that there is no rabbit, and 500 cats on the island know what to do.

So 60,000 birds entered the cat's belly every year. There are fewer rabbits and fewer birds on the island.

In 1985, the Australian government's official cat hunting operation began. In 1997, the cats on the island began to annihilate a large scale. In the past 20 years, 2,450 cats were captured on the island, most of which were caught in the pit and then humanitarian destruction. At the end of the operation, the special training dog team scanned the whole island to find the fish leak.

By June 2000, the last cat on the island no longer exists.

But without cats, the remaining 10,000 rabbits on the island began to expand wildly again.

Dig the vegetation with all the holes.

These rabbits are immune to rabbit sticky tumors. Within 10 years, the number of rabbits has returned to nearly 100,000.

In 2007, the Australian government finally realized that all invasive species must be completely removed at the same time, and one cannot be kept. They carried out big actions to eliminate all rabbits, mice, and other invasive species on the island.

Smoked rabbit hole.

Rabbit dog.

Poisonous bait.

By the way, the budget of this project is A $ 24 million (about 150 million yuan).

In 2011, people discovered that many birds were eating poisonous rabbits and mouse bodies. 2190 birds died in the poison in the year.

It's much better than before, right.

In 2013, the Australian government announced that it has not found any rodent or rabbit in the past year. The number of wild birds seems to have begun to recover.

To this end, the Australian government issued a stamp to commemorate the dogs in Macquarie Island. Well, it is quite cute.

Well, witty humans finally finally succeeded.

But in any case, this is a stupid story about Macquarie and Wisdom humans.

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