1. A large number of mayflies like termites are flying all over the sky
Recently in In Yuanjiang, Yiyang, Hunan, a large number of mayflies appeared in many places. They were flying densely all over the sky. Places with light sources were occupied by mayflies. For example, in street lamps and shop lights, there were layers of mayflies, just like Termites were flying everywhere.
The sudden appearance of such large-scale mayflies has made netizens worried that there will be abnormal weather. Some netizens said: the appearance of these mayflies is very likely to indicate that a heavy rainstorm is coming, and preventive measures must be taken in advance. Staff from the local agricultural bureau responded: Mayflies flying all over the sky happen every year because during the breeding season of the mayfly population, they will fly ashore to find their mates, which is more obvious near rivers and lakes. Such a number of mayflies are also common in the local area. A large number of mayflies appear every year. This year it is not particularly serious and it is a normal natural phenomenon.
During the breeding period, mayflies will fly everywhere, and the number seems to be very large. They have almost no impact on humans and no damage to crops, because the eating organs of these adult mayflies have degenerated and will no longer eat anything. Things, they spend almost all their time and energy on reproduction, mating, etc.
Such a large number of mayflies will also bring certain dangers, although they do not attack They do not attack or bite humans, but swarms of mayflies fly around street lights and fly in front of car lights, which can easily block the light and reduce visibility. In addition, there are too many mayfly swarms, and the death time is very concentrated. It is easy to pile up into a thick layer on the road surface, causing vehicles to skid and cause traffic accidents. It is said that the mayfly insect corpses that appeared this time have been piled up on the road more than ten centimeters high . In order to avoid a car accident, the staff also dealt with them in time.
2. The "live and die" of the mayfly population
The idiom "live and die" of the mayfly population is said to come from the animal mayfly. The idiom means that it is born in the morning and dies in the evening; describes the very short life of things , and the mayfly's Life is very short, you can only survive for a few hours, or at most a few days.
The mayfly is a very small insect. The mayfly larvae are long. At about 3 mm, the adult mayfly is about 2 cm. With its thin and small body, it is almost difficult to spot a single mayfly with the naked eye. However, when mayflies appear in groups, you will feel that " is sending mayflies to the sky and the earth, and the vast sea is vast." A drop of ".
Mayflies are an important link in the ecological chain. They are highly sensitive to water pollution such as eutrophication, acidification, harmful algal blooms and pesticides. Therefore, if the water body is polluted in any way, they will not appear, and the existence of mayflies will not occur. It can be used as one of the important standards for identifying water quality. Mayfly adults do not eat crops and are harmless to crops, while mayfly larvae and adults are food sources for fish and frogs. The large number of mayflies appears in large numbers, which indicates that the surrounding water quality is very good.
Mayflies may seem very tiny and fragile, but Mayflies also belong to an ancient species that appeared as early as more than 320 million years ago , because they rely on the genes of the entire group to reproduce. During this period of reproduction, the adult mayfly does not drink or eat. The only thing the mayfly cares about is to find a mate, mate, and lay eggs. Then the mayfly will lay the eggs in In the water, the life of a mayfly is completed after giving birth to offspring, allowing them to adapt to nature and allowing the population to continue to reproduce without being affected by other influences.
Pay attention to the six-dimensional nature, let nature take its course and understand nature !
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