Mosquitoes are stronger in autumn? Who is the old ancestor of the mosquito?

That said, the weather has cooled a little bit recently, and the whole person is much more spiritual than before.
However, jun's most hated mosquito seems to have come to the spirit, more desperately suck my blood! As the saying goes, "Autumn mosquitoes are as fierce as tigers", why do mosquitoes in autumn as if added to the buff? Mosquitoes themselves prefer autumn mosquitoes are also afraid of heat, but in order to survive, had to withstand the high temperature "work", so look almost the same as us.
in fact, the most suitable for mosquito survival and reproduction of the temperature is 20 to 30 degrees Celsius, the most suitable humidity is about 70%, so after a few autumn rains, the temperature dropped to twenty or thirty degrees, and then with the humid air after the rain, mosquitoes live more moist, bite people to naturally also more energetic.
because there will be large amounts of water after the rain, the more water, the more places where mosquitoes lay their eggs.
, and in the summer, the accumulation of water in autumn is more suitable for mosquitoes to hatch the next generation, because of the summer heavy rain, rain flow fast, mosquito larvae swimming skills are poor, so the survival rate is lower.
the fall rain is reduced, the water is basically no flow, and the bacteria, naturally become a hotbed of mosquito hatching.
breeding season, the appetite is also precisely because of the temperature and humidity suitable, after the fall into the mosquitobreeding peak of the year, like our human spawning, mosquitoes spawning also need more nutrition.
only after a full meal of blood-sucking, the female mosquito's ovaries developed, can successfully lay eggs.
, therefore, due to the need for species survival and reproduction, mosquitoes will seize every opportunity to desperately "undertheed".
on the one hand, female mosquitoes in order to survive the eggs can survive crazy "complement", on the other hand, the Earth's climate is warming, it is also possible to create an army of autumn mosquitoes.
an ecologist at Oregon State University in the United States, a study of "climate and mosquito hibernating habits" found that the Earth's increasingly warm autumn means that mosquitoes begin to hibernate later.
researchers have been collecting data on animals' winters since the early 1970s.
found that today's mosquitoes waitans for an average of about 10 days more than the 1972 mosquitoes before they begin to hibernate.
mosquito blood-sucking is not terrible, terrible is that it also spits some people will feel that the autumn mosquito bite sniping more itch, because the mosquito in the blood-sucking at the same time, but also spit at you.
generally, it takes ten seconds for a mosquito to make a successful bite.
in order to avoid the blood-sucking process, the host's blood will solidify, female mosquitoes in the blood-sucking at the same time, but also from the saliva glands in the mouth to the wound constantly inject saliva, is saliva.
mosquitoes' saliva contains anticoagulant and anaesthetic ingredients that prevent blood clotting from being inhaled and make it invisible to the person who has been bitten.
anticoagulant components stimulate my immune system to release a substance called histamine, which stimulates the nerve endings of the skin, causing redness and itching.
because the mosquito appetite is large, sucking more blood, spitting more, the natural immune system release shisamine is also more, so we will feel more itchy package.
of course, itching is only a slight negative effect, and the real trouble is the pathogen in mosquito saliva.
scientists at Brook University Research Center say that if mosquitoes carry mosquito-borne pathogens such as malaria parasites and dengue viruses, the pathogens will quietly mix into the host's body with saliva.
in the face of ferocious autumn mosquitoes, we certainly will not "allow mosquitoes to cut."
the most effective way to repellent or the use of mosquito incense, mosquito repellent water and other classic mosquito repellent products.
but now circulating on the Internet such a saying, "people stay in the burning mosquito-scented house for a long time will be poisoned", supplemented by the real case;
time, the mosquito fragrance seems to no longer be anti-mosquito weapon, but become a poison.
so, is mosquito incense really poisonous? One type of mosquito incense is really toxic, that is, poor mosquito incense that does not meet safety standards.
this mosquito fragrance with 666 powder, 223 pesticides and DDT and other chemicals as insecticides, because these substances themselves are toxic, ignited after a long time of inhalation will appear dizziness and nausea phenomenon, and this mosquito fragrance can only play a role in dispersing mosquitoes, and did not kill.
for this unqualified toxic mosquito incense, quality supervision department is resolutely combating, consumers should also pay attention to buy fake and inferior products.
and meet safety standards, the market allows the sale of mosquito incense, mostly in pyrethroids as insecticides.
pyrethroids are synthetic insecticides that simulate natural pyrethroids.
so, is the pyrethroid mosquito poisonous? The deworming chrysanthemum, which plays the main anti-mosquito role in mosquito incense, has a strong attack effect on insects, which can disrupt the nervous system of mosquitoes and cause their death, which is truly low-toxic and efficient.
pyrethroids are very low in mosquito incense, are not highly toxic to humans, and have no carcinogenic teratogenic effects.
and chrysanthemum substances are recommended by the World Health Organization can be used to control health pests of pesticides, the production of its dosage has been strictly regulated, manufacturers before production will do toxicology experiments, to ensure that the safety of registration number for production.
, despite the low toxicity, but the smoke from the burning of mosquito incense on the human respiratory tract is irritating.
when there are infants, pregnant women, the elderly or asthma patients, it is best to use physical mosquito prevention methods, such as mosquito nets, screens, screen doors and so on.
we can also use electric mosquito incense tablets, electric liquid mosquito incense, they are effective ingredients and plate mosquito incense, but will not produce smoke, less irritating.
of course, the use of electrical safety should also be taken into note. Who are the ancestors of mosquitoes
? Presumably many people have had a hard time falling asleep and being woken up by the hum of mosquitoes, at which point you might think, "Where did these annoying mosquitoes come from?" How good it would be if there were no mosquitoes in the world! "Unfortunately, the evolution of nature has created the mosquito species.
as to when the history of the mosquito family began, there is no complete unity of the argument. there are two mainstream views
: one is that the ancestors of mosquitoes first appeared in the Jurassic period, while the true sense of mosquitoes first appeared in Cretaceous South America, prehistoric mosquitoes are similar in size to red slugs, three times the size of modern mosquitoes, in kinship close to the mosquito family.
the other theory that the mosquitoes also appeared in the Cretaceous period, but the origin of their ancestors has advanced by more than 300 million years, is considered to be with trilobites, nautilus and other species of the same age, and did not initially suck blood for a living, until the appearance of mammals, these little guys (in fact, only female mosquitoes) became ferocious.
for both of these statements, we might as well analyze them to see who is more accurate.
according to biological classification, mosquitoes belong to the long-horned sub-eye in the insect's winged eyes, which is a more primitive type of winged eye.
Fossil evidence unearthed suggests that the earliest biplegic insects appeared 250 million years ago at the end of the Triassic period, which coincided with the last period of trilobites.
since the general law of biological evolution evolved from low to high, we might as well venture to speculate that there were mosquito ancestors in the earliest species.
, however, even if this inference is correct, at best, we can determine when the ancestors of mosquitoes appeared, and we are not sure which creature was the ancestor of mosquitoes, and there is no uniform argument about which generation the ancestors of so-called creatures should be traced back to.
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