Recently, China Customs intercepted a package sent from the United States, the package was found by the staff when passing the Qingdao Customs X-ray, the package was clearly written on the clothes, but after opening it, there was a smell of putrefaction.
There was a piece of clothing on the top and bottom of the package, but 66 pipes were entrained in the middle of the clothes, and these 66 pipes contained more than 7,000 larvae, adult worms and eggs of the black-bellied fruit fly, and Qingdao Customs immediately confiscated the package according to China's regulations prohibiting the illegal entry of alien species.
So why did someone send so many black-bellied fruit flies from the United States? Like friends can like and follow, your support is my motivation to move forward.
Before answering the above question, let's first understand what is Drosophila Black-
Female drosophila black-bellied flies can lay 5 eggs at a time, and each female black-bellied drosophila can lay an average of 400 larvae in her lifetime, and the larval development rate is mainly affected by the ambient temperature, at 25 °C.
22 hours the larvae will break out of the shell, the temperature is too high or too low will affect the speed of larval development, female fruit flies will put the larvae on the fruit, so the food source of the larvae is on the fruit with high sugar content.
Such as cherries, pears, apples, etc. Fruit flies also get their name from the fact that they like to eat fruit.
Human research on fruit flies can be traced back to 1901, and in 1901 geneticist William Ernst Castor learned about the phenomenon of multi-generational inbreeding of fruit flies through the study of fruit flies. In 1910 Thomas Hunter Morgan began a systematic study of fruit flies, which found that there were four pairs of chromosomes in the black-bellied fruit fly.
These include one pair of sex chromosomes and three pairs of autosomals, the latter usually being recorded as the second, third, and fourth pairs of chromosomes.
It also became one of the most thoroughly studied creatures by humans. Seeing this, you may ask why it appeared at Qingdao Customs, and Ogawa speculated that there should be a possibility that Chinese researchers need to use the black-bellied fruit fly to do experiments.
But researchers can do experiments through formal approval channels to obtain black-bellied fruit flies, why sneak in?
So this statement is not feasible. There is also the biological invasion of the enemy country in order to defeat our country, let the spies drop the invasive alien species in the designated place, and launch biological warfare to reduce the combat effectiveness of the other side, but who is this country?
So that doesn't work either. But you should know that our country has always banned foreign species, but in fact, the time of foreign live parcels has appeared more than once, and in May 2021, Hangzhou Customs also found a large number of live insects from the incoming parcels.
There are 58 live insects of 8 species, including the Sumatran spade shell and the woolly elephant, which were in a parcel called a toy box, but still did not escape the customs X-ray inspection. So why does China ban the entry of alien species?
Our territory is large and has five climatic zones, so it is easy for invasive alien species in our country to find suitable habitats.
It is precisely because these invasive alien species have no natural enemies in our country, so they are easy to flood, and because of the large number, they will cause harm to our country. How did these alien species enter our country and what are the harms?
In fact, there are three ways to invade these alien species, natural invasion, unintentional introduction and intentional introduction. Natural invasion refers to the migration of these species through these natural phenomena such as wind and water.
Unintentional introduction refers to the alien species that are brought back unconsciously by people who lack the ability to distinguish, and intentional introduction refers to the illegal behavior of countries that intentionally introduce good crops in order to cope with the development of agriculture and forestry, but there are also criminals who profit from the transportation of alien species.
When an alien species invades, because there is no natural enemy in the local biological system, it will cause the flooding of alien species, resulting in blockage of waterways, affecting drainage, affecting agricultural development, etc.
Alien species will seize local ecological resources to cause indelible damage to local ecological species or even disappear, crowd out native organisms, nibble on plants, eat fish eggs exclusively, and some will release harmful substances.
Alien species will destroy local biodiversity, such as water hyacinth also known as the wind swallow orchid, if the living environment is suitable for its growth, its growth rate will be very fast, will soon cover the entire river surface, large areas of water hyacinth will block the river, affecting shipping.
Moreover, the water hyacinth will sink to the bottom of the river after death, and a large number of water hyacinths will sink to the bottom of the sea, resulting in the compression of the living space of fish, resulting in the destruction of the ecological environment.
Water hyacinth is also called wind swallow orchid, if the living environment is suitable for its growth, its growth rate will be very fast, will soon cover the entire river surface, large pieces of water hyacinth will block the river, affecting shipping.
Moreover, the water hyacinth will sink to the bottom of the river after death, and a large number of water hyacinths will sink to the bottom of the sea, resulting in the compression of the living space of fish, resulting in the destruction of the ecological environment. In fact, there are scavengers in alien species, and scavengers can be said to be very tenacious in life force.
As long as there is water, it can live, initially it was introduced to The country because it can clean the bathtub, but after flowing into the Yangtze River, it began to flood in the south of China, which seriously compressed the living space of fish, so the invasion of alien species is very large.
According to the "List of Animals and Plants and Their Products Prohibited from Carrying and Mailing by the People's Republic of China", live insects are prohibited from carrying and mailing into the country, and it is forbidden to carry and mail them into the country, so as not to cause harm to domestic agricultural and forestry production. In order to protect our homeland, we need to say no to species invasion together, what do you think about this, welcome to leave a message in the comment area.