Bioacoustics

bioacoustics

[¦bī·ō·ə′kü·stiks] (biology) The study of the relation between living organisms and sound.

Bioacoustics

the area of biology dealing with the voices and sound communication of animals. Bioacoustics is closely related to animal ecology and ethology, to the morphology and physiology of the organs which produce and receive sound signals, and to acoustics. The science of bioacoustics received official recognition in 1956 at the First International Bioacoustics Congress (USA). Work in bioacoustics touches on such general biological questions as formation, speciation, double species, and the direction and factors of evolution.

In the process of evolution, the complexity and reliability of sound communication increases among animals and a transition occurs from the “mechanical” voice (produced by the rubbing of various parts of the body) to the use of stream of air in the respiratory tract (“authentic” voice). Mechanical voice is characteristic of spiders, myriopods, lobsters and crabs, and insects (the vibrating membranes of the cicada, the vibration of beetles’ wings, and so on). The ability to reproduce sounds has been established in more than 1,000 species of fish (from 42 families); they emit sounds by means of their swim bladders, scales, mandibles, and so on. Terrestrial vertebrates use the respiratory system and vocal cords for the production of sounds. Sound communication is particularly developed in birds, and to a somewhat lesser degree in mammals and amphibians. Sound seems to play a small role in the life of reptiles (crocodiles and geckos have voices). The development of the sound-receiving system parallels the development of the voice in the course of evolution. However, there is no absolute correlation between them, since hearing makes contact possible between different groups of animals—often very distant from each other taxonomically—in addition to intraspecific communication.

Bioacoustics also has great practical importance. The behavior of animals is controlled with the help of artificially reproduced sounds (signals) if the outright destruction of harmful animals is not desirable (for example, in order to scare birds away from airports, where their presence threatens to cause aviation accidents). In the field of bionics, the echolocation systems of owls, bats, and dolphins hold great interest owing to their great powers of resolution, their high reliability, and their relatively small dimensions. A type of bioacoustics, biohydroacoustics, is devoted to the development of new methods of fishing and to navigation.

V. D. IL’ICHEV

单词	bioacoustics
释义	bioacoustics bi·o·a·cous·tics B0259900 (bī′ō-ə-ko͞o′stĭks)n. (used with a sing. verb) The study of sounds produced by and affecting living organisms, especially those sounds involved in communication. bioacoustics (ˌbaɪəʊəˈkuːstɪks) n (Zoology) the study of animals' use of sound bi•o•a•cous•tics (ˌbaɪ oʊ əˈku stɪks; esp. Brit. -əˈkaʊ-) n. (used with a sing. v.) a science dealing with the sounds produced by or affecting living organisms. [1955–60] bi`o•a•cous′ti•cal, adj. Bioacoustics bioacoustics [¦bī·ō·ə′kü·stiks] (biology) The study of the relation between living organisms and sound. Bioacoustics the area of biology dealing with the voices and sound communication of animals. Bioacoustics is closely related to animal ecology and ethology, to the morphology and physiology of the organs which produce and receive sound signals, and to acoustics. The science of bioacoustics received official recognition in 1956 at the First International Bioacoustics Congress (USA). Work in bioacoustics touches on such general biological questions as formation, speciation, double species, and the direction and factors of evolution. In the process of evolution, the complexity and reliability of sound communication increases among animals and a transition occurs from the “mechanical” voice (produced by the rubbing of various parts of the body) to the use of stream of air in the respiratory tract (“authentic” voice). Mechanical voice is characteristic of spiders, myriopods, lobsters and crabs, and insects (the vibrating membranes of the cicada, the vibration of beetles’ wings, and so on). The ability to reproduce sounds has been established in more than 1,000 species of fish (from 42 families); they emit sounds by means of their swim bladders, scales, mandibles, and so on. Terrestrial vertebrates use the respiratory system and vocal cords for the production of sounds. Sound communication is particularly developed in birds, and to a somewhat lesser degree in mammals and amphibians. Sound seems to play a small role in the life of reptiles (crocodiles and geckos have voices). The development of the sound-receiving system parallels the development of the voice in the course of evolution. However, there is no absolute correlation between them, since hearing makes contact possible between different groups of animals—often very distant from each other taxonomically—in addition to intraspecific communication. Bioacoustics also has great practical importance. The behavior of animals is controlled with the help of artificially reproduced sounds (signals) if the outright destruction of harmful animals is not desirable (for example, in order to scare birds away from airports, where their presence threatens to cause aviation accidents). In the field of bionics, the echolocation systems of owls, bats, and dolphins hold great interest owing to their great powers of resolution, their high reliability, and their relatively small dimensions. A type of bioacoustics, biohydroacoustics, is devoted to the development of new methods of fishing and to navigation. V. D. IL’ICHEV bioacoustics bi·o·a·cous·tics (bī'ō-ă-kūs'tiks), The science dealing with the effects of sound fields or mechanical vibrations on living organisms. bioacoustics (bī′ō-ə-ko͞o′stĭks)n. (used with a sing. verb) The study of sounds produced by and affecting living organisms, especially those sounds involved in communication. bioacoustics The study of the production and reception of sounds by animals, and the physical and behavioural effects induced by sounds. bi·o·a·cous·tics (bī'ō-ă-kūs'tiks) The science dealing with the effects of sound or vibration on living organisms.
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bioacoustics

bi·o·a·cous·tics

bioacoustics

bi•o•a•cous•tics

Bioacoustics

bioacoustics

Bioacoustics

bioacoustics

bi·o·a·cous·tics

bioacoustics

bioacoustics

bi·o·a·cous·tics