Eat lotus root, cigu, cocoon... Punching holes to break dikes
Several times larger than a mouse ...
Recently
In Shanghai Jinshan, Fengxian, Songjiang, Pudong and other districts
Continuous discovery of this alien species -
nutria
And it continues to spread
Many people are worried that beaver rats feed in large quantities
Lotus root, cocoon, reed, etc
Directly harms plantations and coastal landscape plants
And may carry a variety of germs
Pose a hidden danger to public health security
It is recommended that relevant departments pay attention to it
Growers:
Beaver rats eat young shoots and eat lotus root, and are very troubled
Jiang Qixin, a lotus root farmer in Xingda Village, Songjiang Yexie Town, has a 100-acre lotus root pond, and in the past two years he has been plagued by beaver rats, which eat lotus buds in spring and lotus roots in autumn and winter. "When I am hungry, I eat everything, but when there is nothing on the ground, I go to the water to eat lotus root, and I still pick the lotus root to eat, and I don't eat the bad one."
Where did the village beaver rats come from? Jiang Qixin said that the agricultural farmers in the village all inferred that they came from nearby, "In the past, the economic benefits of raising beaver rats were very good, so there used to be artificial breeding nearby, but now it is not valuable, so they all let it go." ”
Jinshan, Qingpu, Pudong, Fengxian
Beaver rats are found in many places
Not only in Xingda Village, Songjiang Yexie Town, but also in Shanghai environmental protection volunteers, in recent years, they have successively found beaver rats in rural rivers, park landscape rivers, lotus root ponds, Zhubai ponds, Zhubai ponds, etc. in Jinshan Luxiang Town, Fengjing Town, Fengxian Bay Area, Jinhai Street, Pudong Luchaogang and Nanhui New Town, Qingpu and other places, and the population has a tendency to spread.
According to Professor Wang Zhenghuan of the School of Life Sciences of East China Normal University, the harm of beavers is mainly due to digging holes to cause dikes to burst, eating crops and vegetation, and destroying crops and greenery. If the density is low, it will not pose a threat to the security of the local ecosystem for the time being. But as alien species, they should not be present in open environments, regardless of whether they cause invasive species.
The reporter found that the beaver rat is only an alien species, and has not been listed as an invasive alien species by the mainland for the time being.
"For us in Shanghai, beaver rats are alien species, and their impact on the local ecological environment is worth paying attention to." Citizen volunteers said that according to the data, beaver rats can also carry pneumococcus, tuberculosis bacillus, Y. pestis, etc., which may have certain hidden dangers to public health safety, and hope that forestry, agriculture, water affairs, disease control and other departments will strengthen the investigation and research on the spread and impact of the species in Shanghai, and formulate corresponding disposal processes and plans for population monitoring and early warning, animal disease prevention and testing, capture control, and harmless disposal.
My home is South America
In China, it is forbidden to eat wild animals
△Beaver rats raised in Shanghai Zoo. In their native areas, the habitat of beaver rats is threatened by degradation due to overgrazing.
Professor Wang Zhenghuan introduced that the beaver rat is native to South America and is a rodent. Now it is cultivated in many countries around the world, with high fur, meat and medicinal value. Occasional escapes breed naturally in the right environment.
A few years ago,
Beaver rats have been used in the United States and Italy
and other countries flooded.
According to the data, the beaver rat was introduced to the mainland in the 80s of last century, and soon set off a breeding boom, which became a project for many farmers to become rich. However, due to the deterioration of fur quality after breeding in the south, coupled with the lack of standardized and orderly development of the market, beaver rat breeding later cooled down, and the originally very expensive beaver rat market plummeted. In unmanaged farms, beaver rats release their animals, run away, and reproduce themselves in the wild and gradually spread.
See here,
Some "foodies" may want to ask:
Can you use food against beaver rats? No!
On September 30, 2020, the State Forestry and Grassland Administration issued a notice clarifying the categorical management of 64 species of wild animals in the cultivation of prohibited food, of which the beaver rat is "prohibited from breeding for the purpose of food, and is allowed to be used for non-food practical purposes such as medicinal, display, and scientific research".
Wang Zhenghuan stressed that with the improvement of people's living standards, there will be more and more foreign animals (pets, furs, meat, medicinal uses), and strengthening source management is the key. As individuals, we must have environmental awareness, whether it is alien species or native species, we must not abandon them in the suburbs at will.
From: Shanghai TV Station - News Square Comprehensive from Morning News - Zhou to Shanghai, Xinmin Evening News, Shanghai News Broadcast
Source: Hangzhou Jiaotong 918