What are the benefits of birds?
Broadly speaking, birds are an important part of nature. Various birds play an irreplaceable role in the harmony and prosperity of nature. role. For example: some birds can eat insects, which is beneficial to plant growth; some birds eat carrion, which is beneficial to environmental hygiene; some birds pollinate flowers, which is beneficial to plant breeding; some birds prey on other species to inhibit their over-breeding, resulting in out of control. etc. In a world without birds, there is no telling what kind of catastrophic events would happen.
In a narrow sense, someone likes to raise birds. Birds are to him what music is to people who love music, food is to people who love food, and cars are to people who love cars. They are his favorite things. Of course, raising birds cannot interfere with other people's normal lives. Bird keepers should be given the necessary respect as long as they do not interfere with the normal lives of others.
What is the role of birds?
Broadly speaking, birds are an important part of nature. Various birds play an irreplaceable role in the harmony and prosperity of nature. role. For example: some birds can eat insects, which is beneficial to plant growth; some birds eat carrion, which is beneficial to environmental hygiene; some birds pollinate flowers, which is beneficial to plant breeding; some birds prey on other species to inhibit their over-breeding, resulting in out of control. etc. In a world without birds, there is no telling what kind of catastrophic events would happen.
In a narrow sense, someone likes to raise birds. Birds are to him what music is to people who love music, food is to people who love food, and cars are to people who love cars. They are his favorite things. Of course, raising birds cannot interfere with other people's normal lives. Bird keepers should be given the necessary respect as long as they do not interfere with the normal lives of others.
Hope it can be helpful to you.
What are the benefits of birds to humans (a few kinds)
1. Some birds have tender meat and delicious taste, which is a delicacy for people. Bird eggs are also rich in nutrients and can be eaten by humans.
2. Some birds are natural insect catchers and are good helpers for farmers. For example, an owl can kill 1,000 voles in one summer, which is equivalent to protecting a ton of food. A thousand purple-winged starlings roosting in a colony can destroy twenty tons of locusts during the breeding period. A swallow can eat 500,000 to 1 million mosquitoes, flies and aphids in a summer.
3. Birds are also forest guards. Birds play an important role in preying on many forest pests. Moreover, guano contains a large amount of nitrogen and phosphorus compounds and is a high-quality organic fertilizer.
4. Birds can help people fish and hunt.
5. Bird feathers can not only be used to make down jackets and duvets to protect people from the cold, but can also be made into badminton balls and beautiful decorations.
6. There are some birds with bright feathers or melodious chirps, which are popular as ornamental birds or caged birds.
7. Many birds, such as flowerpeckers and sunbirds, feed on nectar, thereby spreading pollen to flowers and trees.
8. Some birds can be used as medicinal materials, such as silky chicken, white chicken, clove chicken, etc. There are also top-quality bird's nest medicinal materials and supplements.
9. Bird chirping can cure diseases.
Moreover, the sounds of various birds have different effects: the nightingale’s call is melodious, sometimes loud, sometimes deep, making people excited and optimistic. It has a positive impact on the human body and can assist in the treatment of depression. and neurosis, relieve headaches; the oriole always repeats a tune, which has a calming effect on the nervous system, can lower blood pressure, relieve vasospasm, and is good for the heart; the even melody in the calls of canaries and chaffinches can help Treat arrhythmia; the clear, loud and energetic calls of oriole and red-fronted goldfinch can assist in the treatment of neurosis and psychopathy, and promote organ activity throughout the body; the amplitude of the sound emitted by redbreasted robin can relieve headaches and distress , joint pain, and relieves spasm of the liver, stomach, and blood vessels. Its cry at night can also make people have a good sleep.
10. The unique physiological structures and functions of birds provide bionic science research topics for the innovation of mechanical systems, instruments and equipment, building structures and technological processes. For example, "Pigeon Eye Radar System", "Hawkeye Eye System Missile" and so on.
Birds have so many benefits to people! We must protect the birds!
What are the uses of birds? 10 points
The role of birds in nature
The role of birds in nature refers to the role of birds in different ecosystems (such as Forest ecosystem, grassland ecosystem and farmland, lake, ocean and other ecosystems) status and role. Birds are important members of the ecosystem and, although they may not have a major impact on productivity, they have a density-limiting effect on the prey they eat. In addition, birds are responsible for transporting seeds and nutrients, participating in energy flow and inorganic material circulation within the system, and maintaining the stability of the ecosystem.
Birds prey on insects and small rodents, and their role in maintaining the ecological balance of nature is not directly perceptible because the environmental factors involved are very complex and must be rigorously designed and laborious. Only through field investigation, laboratory work and detailed analysis can more accurate results be obtained.
In recent years, quantitative research on bird predation and research on the characteristics of bird predation at home and abroad have more appropriately revealed the role of birds in the ecosystem, especially the status and role of insectivorous birds in the forest ecosystem.
1. The predation effect of birds
Birds have strong flying power, fast speed and large range of activities. Moreover, birds are migratory, territorial during the breeding season and after the breeding season. The clustering nature of birds makes the bird community structure very complex, with great fluctuations in species and quantity. This gathering and movement of bird populations can increase their numbers and "clear" or "eliminate" certain prey species in local areas.
Due to the large food intake and fast metabolism of birds, most insectivorous birds do not have cropping ears like grain-eating birds. The rate at which food passes through the digestive tube is also very different, which is different from physiological needs and feeding. The method, feeding season, age of the bird, condition of the bird and the nature of the food itself are all closely related. Differences in food digestibility may cause the ratio of certain foods to be over- or under-estimated during gastrotomy. To compensate for these differences, correction factors are applied when estimating food composition (Table 1). The species and quantity should be identified based on the characteristics of the insect body remains, the membrane on the head of the larvae, the shields on the thorax and buttocks, the fragments of the thoracic and ventral feet, and the remains of the palate.
Table 1 Estimated consumption of 5th to 6th instar spruce leaf moth by birds during the 20-day larval stage and 15-day pupal stage (birds/hectare)
(from Crawford et al., 1983)
Any kind of bird, even at the same time, will never feed on only the same kind of insect. Their food composition includes not only harmful insects, but also beneficial insects and some insects that have been parasitized by other insects, which increases the complexity of analyzing the inhibitory effect of birds on harmful insects. However, some recent findings suggest that birds tend to avoid parasitized insects. In this way, birds and parasitic insects may be complementary rather than competitive. There are also some birds that show a preference for eating certain pests or insect forms. For example, the cuckoo loves caterpillars of various sizes. Some birds like to eat adult insects, which is very important in controlling pests, because the death of the adult stage often has an important impact on the population size of the next generation
There are obvious seasons for the food that birds eat. sexual changes. When food is scarce in the winter, many insectivorous birds switch to plant foods. The types of food eaten by birds also change during different stages of their life history. During the fledgling stage, even grain-eating birds must feed their chicks animal food such as insects to ensure normal development and survival of the chicks. Generally speaking, the type, state and period of food that birds prey on are consistent with the food resources that nature can provide. This is the result of long-term evolutionary adaptation between birds and the environment.
Birds can affect the quantity and dynamics of insect populations. Similarly, insect species and density also have an important impact on bird predation. Most bird species have functional and quantitative responses to prey population density. The former refers to the behavioral changes that occur when predators attempt to attack more prey when prey density increases. The latter is a change in the number of predators caused by an increase in prey density. Changes in numbers can be caused by reproduction or by "invasion." The unique effects of birds' functional and quantitative responses to insect density can be attributed to the "direct effects of birds on insects." Birds can also affect insect populations indirectly, primarily by changing their prey's microhabitats to make them more susceptible to weather, parasitism and possibly diseases and viruses.
Identifying the predatory characteristics of birds and their interactions with prey populations is important for understanding the place and role of birds in ecosystems. Whether or to what extent the density of main prey is suppressed through the predation of birds is also a very necessary parameter for the comprehensive management of harmful insects.
2. The control effect of birds on forest pests
Birds play an important role in preying on many forest pests. Due to space limitations, we only give some more significant examples to illustrate birds...
What are the uses of birds?
The contribution of birds to mankind is well known. Birds also have a special role, which is that they inspire human wisdom and provide principles and blueprints for humans to explore ideal technical devices or means of transportation. It can be said that birds are human teachers in terms of structure, function, communication, etc., and scientists often need to consult birds for many modern scientific and technological issues.
Eagles soar into the sky, doves soar thousands of miles, and birds can fly freely in the air. What a great attraction and inspiration to humans! Legend has it that more than 2,000 years ago, Lu Ban, a famous craftsman in my country, studied and made wooden birds. According to historical documents, more than 1,900 years ago, some people in our country tied bird feathers together to make wings that could glide hundreds of steps away. More than 400 years ago, Italian Leonardo da Vinci designed an ornithopter based on his observations and research on birds, trying to use the movement of his pedals to flapping his wings. Later, after many scientists' experiments, people figured out the mechanism of fixed-wing gliding of birds, and realized that the wings must have a thick leading edge and a thin trailing edge like a bird's wing to form a curved surface to generate lift. In addition, industry provided lightweight Using high-quality metal materials and high-power engines, the airplane was finally invented in 1903, realizing the human dream of flying into the sky for thousands of years.
Ever since humans invented airplanes and took to the sky, they have been constantly innovating and transforming airplanes. They have quickly surpassed birds in terms of size, load, and speed. Modern airplanes can fly faster, farther, and higher than any bird. Especially the various aircraft that have appeared in recent years can travel among the stars, which is beyond the reach of birds. Despite this, man-made aircraft are still not as complete and sophisticated as birds in terms of certain flight technologies and aircraft structures, not to mention the energy consumption. For example, the Golden Plover can continuously fly over the ocean for more than 4,000 kilometers while only losing 60 grams in weight. If the aircraft can fly with this efficiency, it will save a lot of fuel.
The wings of birds have many special functions and structures, making them not only good at flying, but also able to perform many "stunts" that are still difficult to achieve with current human technology. The little hummingbird is the "helicopter" among birds. It can take off and land vertically, and fly backwards. When sucking nectar, it does not sit on the flower like a bee, but hovers in the air. What a neat flight it was. Building a vertical take-off and landing aircraft with the flight characteristics of a hummingbird has become the dream of many aircraft designers.
The eagle's eyes are extremely sharp. The eagle soaring at an altitude of two to three thousand meters scans the ground with its eyes. It can detect rabbits and mice among many relatively moving scenery, and swoops down quickly to capture them in one fell swoop. Eagle Eye is also sensitive to moving targets and can adjust quickly. It can identify targets accurately. The development of modern electronic optical technology makes it possible for us to study a system similar to Hawkeye, which can help pilots identify ground targets and control missiles at the same time.
The migration distance of migratory birds can range from hundreds of kilometers to thousands of kilometers. However, they always arrive at the destination chosen for generations. This shows that migratory birds have excellent navigation skills. Scientists have already conducted research on these phenomena and believe that birds have good navigation skills because they have their own special sensory organs that can sense and analyze changes in environmental factors in different regions of nature, so as to identify directions and find migration routes. route. Some rely on identifying the position of the sun and use the sun as a directional guide; some rely on identifying the orientation of stars and use astrological navigation; some rely on sensing changes in the earth's magnetic field and use geomagnetic navigation; and some use the earth's gravity field to navigate. After understanding the principles of bird navigation, bionics scientists, inspired by penguins, designed a new type of car - the "Penguin Polar Off-Road Vehicle". This kind of car uses a wide bottom to stick to the snow and uses a wheel scoop to push forward. This not only solves the problem of polar transportation, but also can drive in muddy areas. In addition, the unique physiological structures and functions of birds also provide many bionics topics for the innovation of mechanical systems, instruments and equipment, architectural structures and technological processes. Therefore, birds are both friends and teachers of humans. For the future of science and the happiness of mankind, we should also protect birds. Birds have given mankind many priceless revelations: when people see flying birds in the sky, they think of a machine that can take us to the sky...an airplane; the firmness and stability of the mountain eagle at the moment it lands makes people feel like they are It can also fly down from the sky and land safely; the dragonfly in flight has inspired mankind to create helicopters; the dexterous and silent flight of the owl has transformed flying...
Birds What are the benefits of birds
Most of the birds are beneficial birds. They are natural enemies of pests and can protect crops and trees. Such as swallows, owls, sparrows, etc. Some birds have very beautiful feathers, and some have sweet and sweet songs, such as orioles and cuckoos. They are good friends of humans and can add infinite fun to our lives
Which birds are good for humans? i
The benefits of birds are considerable. A great tit can eat more than 200 pests in a day; a magpie can kill 15,000 pine caterpillars in a year; a pair of cuckoos can eat 180 poisonous moth larvae in a day. A woodpecker can kill more than 300 dry-boring pests in a day; a swallow can swallow more than 1 million mosquitoes, flies and other pests in a summer; an owl can prey on more than 1,000 mice in a year, which is equivalent to saving 1,000 kilogram of grain; one native swallow can eliminate 16,000 locusts per month during the brooding period.
What is the use of a bird's tail?
It maintains body balance and changes direction during flight. Males of some species, such as peacocks, have brightly colored tail feathers that they use to attract females during courtship.
In addition, the tail feathers of the woodpecker are short and stiff, which can play a supporting role when it stays on the trunk to feed! The tail functions of birds are many!