Xinhua Full Media+丨 Jiangyuan Science Examination: "Insect Catcher" explores plateau biological diversity

Xinhua News Agency, Xining, July 27th (Reporter Tanaka Quan Chen Jie Li Jinfeng) During the day, they ran on the Qinghai -Tibet Plateau at an altitude of more than 4,000 meters. At the "black light", the alive moths that are active at night ... This is the normal work of the two female players in the Jiangyuan Science and Entrance Examination Team.

The comprehensive scientific investigation of Jiangyuan in the 2022 of the Yangtze River Academy of Sciences, led by the Yangtze River Conservation Committee, was launched in Qinghai. Biological diversity observation is one of the important contents of this scientific examination. The scientific research teams explore the biodiversity characteristics of the Yangtze River and Lancang River by capturing various types of insects.

"Hurry up, this locust is very characteristic and has no wings!" Near the Qitu Bridge in the Nanyuan Bridge of the Yangtze River, Zhang Guoyue, a scientific research team from the Yangtze River Civilization Museum captured a gray -green locust. The partner Fan Yadong came here, and the two were together to have a strong interest in the "rare object" in front of them.

On July 26, Zhang Guoyue (left) of Jiangyuan Scientific Examinations and Fan Yadong displayed the insect specimen collected. Xinhua News Agency reporter Xiao Yijiu Photo

"Locusts in the plateau area are not the same as us." Fan Yadong introduced that the locusts in the plain areas are large, their wings are relatively developed, and their flying ability is strong; In order to adapt to the environment and reproduce the interest, the locusts degenerate into a short -wing or wingless type. "

Xu Ping, chief engineer of the Yangtze River Academy of Sciences of the Yangtze River Water Conservancy Commissioner, introduced that in recent years, each time the Jiangyuan Science Examination will expand the research field and realize the mutual inspiration and cross -integration of different disciplines in the comprehensive scientific research. Further expand the perspective and dimension of Jiangyuan 'Physical Examination'. "

Jiangyuan's scientific examination is not easy. In order to obtain a richer type and more representative research information, scientific research players are greedy and grued in different positions every day in the Yangtze River source and Lancang River source areas at an altitude of more than 4,000 meters. Sometimes they go all day.

Leslie Cheung and Fan Yadong often went up the hillside net bugs on the help of their teammates to find insects on the riverbed. Due to the high altitude and thin air, each of them caught a insect, they were panting. For the captured insects, scientific research players only choose one of the most representative specimens of this category, and all of them are released, minimizing the impact on the unique ecosystem of the Jiangyuan area as much as possible.

On July 26, Zhang Guoyue (left), a member of Jiangyuan Scientific Examination, and Fan Yadong collected insects in the Yangtze River source area. Xinhua News Agency reporter Xiao Yijiu Photo

After night, their work has not ended. Many insects only came out at night, and the two of them specifically set up a 500 -watt "black light" to send out ultraviolet light waves to seduce insects such as moths to "self -throwing the net".

Moths in the plateau area have different biological characteristics from plain areas. The scientific examination found that many moths in the Jiangyuan area were thicker and the flight was relatively slow. Zhang Guoyue said, "The temperature difference between day and night in the plateau area is large, with a lot of fluff and slow flight, which is also the embodiment of the moth's cold resistance."

Insects are an important part of the ecosystem and are very sensitive to changes in the ecological environment. For two days, Zhang Guoyue and Fan Yadong have captured more than 100 insects with different sizes and different shapes, including scales, membrane wings, spleen, winged eyes, straight wings, half -winged eyes and other types. Essence

"Although the climate is harsh, the biological diversity is very rich and eye -catching." Fan Yadong said that there are still many Plateau -specific insects that need to be further explored and discovered by scientific research.

"Biological diversity is the most intuitive reflection of the ecological environment. If the ecological environment is destroyed, biological diversity will inevitably decrease." Zhang Guoyue said that they accumulated a lot of first -hand data in this scientific examination, which helps further grasp the Jiangyuan area in the area of ​​Jiangyuan area. Biological diversity characteristics will also hold science popularization activities such as the "Jiangyuan Insect Exhibition" to enhance the public's ecological and environmental awareness. (Participate in writing: Xiao Yijiu)

[Editor in charge: Shi Ge]

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