About 176 species of mosquitoes are found in the U.S., and over 3,000 species are known worldwide. In the United States, only some of the 176 species of mosquitoes are important as carriers of disease, but many others are important nuisance species, which greatly impact the quality of life for individuals. Of the 200 different species of mosquitoes found in the U.S., the majority of them reside in areas that are wetlands or have a seasonal pools and pools.
There are approximately 200 different species of mosquitoes that live in the United States, they inhabit a particular habitat, they have a unique behavior, and they bite a variety of types of animals. While all mosquitoes require standing water in order to reproduce, the various species of mosquitoes are found in a variety of habitats. While mosquitoes love water, you will find more living around standing water than in lakes and streams.
Mosquitoes thrive in areas of slow-moving or stagnant water, and also in forests, swamps, and tall grasses. Mosquito populations can be controlled, in part, by eliminating sources of standing water that offer perfect mosquito breeding sites.
The probability of transmission can be reduced by using mosquito repellent, long clothes covering arms and legs, screens on doors and windows, and insecticide-treated mosquito nets. There are a number of ways to prevent mosquito bites, including using mosquito repellent and wearing proper clothes when outdoors.
Not all mosquitoes spread disease, and you will not be ill with each mosquito bite, but it is important to be sure that you are aware of mosquitoes, the diseases that they can spread, and how to prevent a mosquito bite from occurring in the first place. It only takes a few infected mosquitoes to cause a community-wide outbreak, and you and your family are at risk for getting sick.
More countries are becoming malaria-free, a blood disease contracted by biting on an infected mosquito. Malaria, one of the best-known diseases that is exclusive to mosquitoes, killed about 438,000 people worldwide in 2015. Bites from these insects are more dangerous to humans than any other animal; mosquitoes kill hundreds of thousands of people every year around the world, while infecting millions of others.
Because mosquitoes can live inside, they eat the blood of humans and animals, so they are everywhere you go. Although they do eat the blood of their hosts, mosquitoes do not live in the hosts body like, say, lice. Only adult female mosquitoes bite people and other animals for a blood meal, at which point they lay eggs in or around water, starting the cycle all over again.
Female mosquitoes are the ones who bite, as they require blood proteins for their eggs to develop. In many species, a female needs the nutrients in the blood meal before she produces eggs, while in many other species, getting nutrients in the blood meal allows a mosquito to produce multiple eggs. For most species, a pupa must bypass vertebrate physiological responses in order to get a blood meal.
A technique called spiking means the mosquito does not simply siphon off as much blood as needed from one source — it takes several meals from several sources. While male mosquitoes eat nectar alone, females require a meal of blood in order to make viable eggs to hatch. Only female mosquitoes bite because they require blood meals in order to produce eggs, however, both male and female mosquitoes eat plant saps for their overall nutrition needs.
Male mosquitoes only survive 6 to 7 days on average, feed mostly on plant nectar, and will not eat a blood meal. Adult mosquitoes will live for approximately 2 to 4 weeks, depending on species, humidity, temperature, and other factors. Once the mosquito hatches, it may survive anywhere between two to four weeks, depending on conditions.
In other cases, like yellow fever and dengue, a virus gets into a mosquito when it feeds on an infected person, and is transmitted through mosquito saliva to the next victim. Entomologists check several samples of insects for viruses. Mosquitoes can not only transmit diseases affecting humans, they also can spread a number of diseases and parasites to which dogs and horses are highly susceptible.
Mosquitoes are considered vectors, meaning that they can carry disease-causing organisms from human to animal. Mosquitoes can live indoors and outdoors, and they may bite during the day or at night, depending on the mosquito species. Male mosquitoes do not bite people, but when the females drink our blood to develop eggs, they can carry viruses and parasites that cause diseases such as West Nile, malaria, dengue fever, and Zika.
Typically, male and female mosquitoes both feed on nectar, the sweet dew from an aphid, and plant juices, but in many species, females have mouthparts adapted for puncturing animal hosts skins and sucking out their blood as ectoparasites. Pupae in most species, like all arthropods that feed on blood, have mechanisms for efficiently blocking the haemostasis system using their saliva, which contains a mix of secreted proteins.
After engorgement is complete, the mosquitoes pull back the oral parts of the artificial blood meal, often remaining stationary for some time to expel excess fluid. We noted that full engorgement (significant abdominal swelling from imbibing blood) occurs only in female mosquitoes feeding on blood, while in female nectar-feeding mosquitoes imbibe much less (volume of typical nectar vs. blood meal Ae.
A more severe consequence of certain mosquito bites can be the transmission of severe diseases and viruses, such as malaria, dengue, Zika, and West Nile viruses, that may cause disabling and possibly fatal effects (such as encephalitis, meningitis, and microcephaly).