There are a large number of ephemera in Hunan, and the bodies are piled up more than ten centimeters. What is the reason for this phenomenon?
It happened on the evening of September 4th, and a large number of Mayflies appeared near Huangmaozhou Bridge in Yuanjiang City. When the vehicle passed by, the front windshield was covered with white ephemera, which had reached the level of blocking the line of sight. At the same time, when passing the Huangmaozhou Bridge, because the dead bodies of flying insects have accumulated to more than ten centimeters, the tires will slip when the vehicles pass by. As a direct result, vehicles pass by here, and they all walk very slowly, otherwise a car accident will happen carelessly.
There are so many Mayflies, mainly because of the high temperature in 2022. In the summer of 2022, the temperature has been high and there is little precipitation. The water source that directly leads to the survival of Mayflies shrinks and the temperature under the sun rises. The increase of temperature accelerates the metabolism of Mayfly larvae in water, accelerates the maturity of Mayfly, and leads to the maturity of Mayfly which should be matured in batches in almost the same time. Mature adults fly into the air to mate and give birth to more offspring.
The survival time of this insect adult is very short, ranging from a few hours to 1-3 days. So when they appear in large numbers, they will die together, and such a tall body is piled on the bridge. You can imagine how horrible the number of mayflies is. At the same time, Mayflies are the most primitive winged insects, which are distributed anywhere except the north and south poles. They have higher requirements on the water quality of their living environment, and only live in fresh water with relatively clean water quality, which also shows that the water quality environment in Hunan is good. Hundreds of millions of Mayflies appear at the same time mainly because of the high temperature.