Traditional Culture Encyclopedia - Weather inquiry - Why did the dragonfly know it would rain?

Why did the dragonfly know it would rain?

Question 1: How do dragonflies judge that it is going to rain based on air humidity and air pressure? Before it rains, the air humidity will be very high and the air pressure will be reduced. At this time, you can identify the dragonfly. Will fly very low.

Question 2: How do dragonflies predict rainfall? Dragonflies have special wings and can feel the change of air pressure. The air pressure will change before it rains. Generally, the air pressure will increase, so the dragonfly is going to rain.

Question 3: Is the dragonfly a symbol of rain? Before it rains, the air humidity is very high, and the wings of flying insects in the air will be wet, so they can't fly high. At this time, the ducklings will come to prey on flying insects, so they will always see many flying insects before it rains.

Question 4: Why do dragonflies fly so low that it's going to rain? Odonata members of this order are mostly large and medium-sized insects with large heads and flexible rotation. The two pairs of wings have transparent membranes and many transverse veins, and there are often wing moles near the top of the wings. They are distributed all over the world, especially in the tropics. About 5000 species are known, and about 350 species and subspecies are recorded in China. Many dragonflies have no ovipositors. They hover over the pond, or fly back and forth along the stream, scattering eggs during the flight. Some species fly close to the water surface and lay eggs in the water with their tails. Adults catch insects of the right size as food in flight.

Odonata insects often fly over open fields. Odonata insects often come out at dusk to prey on mosquitoes, moths, leafhoppers and so on. , is an important beneficial insect. The phenomenon that the weather turns bad and insects often fly on the ground can only show that the air pressure is low and sometimes it doesn't rain.

Question 5: Why do dragonflies fly at low altitude on rainy days? Before it rained, the air was full of water droplets. Many small flying insects (very small, difficult to catch with the naked eye) are covered with small water droplets, making it difficult to fly high. Dragonflies fly low to catch small flying insects for food, so the low flight of dragonflies also indicates that it will rain or the air is very humid.

Question 6: Why do two dragonflies get together when it rains? Dragonfly eggs and hatched larvae are in the water. Dragonflies usually mate, but they are all on the water.

When it rains, two dragonflies will mate together, so the chances of survival of larvae will be much greater, which is also a long-term survival habit of species.

Question 7: I also know that dragonflies (spiders) fly low before it rains.

Question 8: Why do dragonflies fly low when preparing for rain? When it is about to rain, the air humidity is so high that the wings of insects that dragonflies want to prey on are stained with water. Insects can't fly high because their wings are stained with water, and dragonflies also take the opportunity to hunt. So dragonflies fly very low when it rains. I hope it helps you.

Question 9: There are many dragonflies. Why does it rain? It is not because there are many dragonflies that it will rain, but because the empty storage before rain is wet and there is more water. The thin wings of dragonflies are affected by water in the air, so they can't fly high. At this time, small flying insects will also fly at low altitude, and dragonflies will mainly feed.