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Alarm signal


Alarm signal: In the field of animal communication, an alarm signal is an antipredator adaptation referring to various signals emitted by social animals in response to danger. Many primates and birds have elaborate alarm calls for warning conspecifics of approaching predators. For example, the characteristic alarm call of the blackbird is a familiar sound in many gardens. Other animals, like fish and insects, may use other non-auditory signals, such as chemical messages. While visual signs have been suggested as alarm signals, they are easier to pinpoint by predators and less likely to be received by conspecifics, so have tended to be treated as a signal to the predator instead. An animal who signals an alarm is called an alarmer.

  • also known as Alarm call

Printed dictionaries and other books with definitions for Alarm signal

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Google previewThe Handbook for School Safety and Security (2014)

Best Practices and Procedures by Lawrence Fennelly, Marianna Perry

An alarm signal is a signal indicating an emergency requiring immediate action initiated from automatic or manual detection of an alarm condition from a device such as a manual pull station, water flow alarm, smoke detector, or some other ...

Google previewThe Extended Organism (2009)

The Physiology of Animal-Built Structures by J Scott Turner

Often, the alarm signal is a volatile chemical, an alarm pheromone, released from specialized glands in the worker's body.4 When another bee senses the alarm pheromone, this triggers an alarm reflex in it, which initiates the reflex in yet ...

Google previewAutomatic Telephone (1921)

Alarm Signal. — An alarm signal is a sound producing device for attracting attention to cither a supervisory or ...

Google previewFocal Illustrated Dictionary of Telecommunications (2013)

by Xerxes Mazda, Fraidoon Mazda

alarm signal: A signal which indicates an abnormal operation and is intended to draw the attention of an operator. a-law: In digital telephony the analogue voice signal is converted to a digital signal within an ...

Google previewNFPA's Illustrated Dictionary of Electrical Terms (2004)

by H. Brooke Stauffer

Fire Alarm Signal. Signal initiated by a fire alarm-initiating device, such as a manual fire alarm box, automatic fire detector, waterflow switch, or other device. Fire Alarm System. Components and circuits arranged to monitor and annunciate the ...

Google previewCommunications Standard Dictionary (2012)

by Martin Weik

alarm signal: 1.

Google previewMongolian English Dictionary (2013)

by Bawden,

зогсох ~ brakelight, түгшүүрийн ~ alarm signal, danger signal, эргэх ~( эргэлтийн дохионы гэрэл) direction indicator, дохионы бичиг TibetanMongol bilingual dictionary (a/so даяг), ~зангаа gesture, ~өгөх to signal, ~ санаа авахto getthe ...

Google previewA Dictionary of Psychology (2015)

by Andrew M. Colman

A vocal *alarm signal. alarm pheromone n. A *pheromone that is released by an animal as an *alarm signal and that induces a fear or fright response in members of the same species. alarm reaction n. The first stage of the *general adaptation ...

Google previewAmerican Revisions and Additions to the Encyclopaedia Britannica (1892)

a bell in the street station to indicate the reception by the station house of an alarm signal, or to announce to the patrolman that the station house desires to speak to him by telephone. The telephones are inductively connected with the circuit, ...

Google previewThe Encyclopaedia Britannica (1896)

A Dictionary of Arts, Sciences, and General Literature

a bell in the street station to indicate the reception by the station house of an alarm signal, or to announce to the patrolman that the station house desires to speak to him by telephone. The telephones are inductively connected with the circuit, ...

Google previewInternational Encyclopedia of Ergonomics and Human Factors, Second Edition - 3 Volume Set (2006)

by Waldemar Karwowski

sound changes Decreasing of RPM Decreasing of turning moment Pressure drop in gas system Decreasing of exhaust gases temperature Lighting of signal bulb (alarm signal) about engine failure Pressure drop in oil system RUBINSHTEIN ...

Google previewA Dictionary of Biology (2015)

by Robert Hine

alarm signal A warning signal given by an animal to other members of its population in response to perceived danger, usually the approach of a predator. This is a form of *altruism, since the animal that has ...

Google previewEncyclopedia of Computer Science and Technology (1998)

Volume 38 - Supplement 23: Algorithms for Designing Multimedia Storage Servers to Models and Architectures by Allen Kent, James G. Williams

Public Applications For relaying a civil alarm signal to a deaf user, the following information channels can be used: • A dedicated radio frequency • A subcarrier or RDS code of the local FM station (83) • The short message service (SMS) of the ...

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Alarm Signal

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Dada was not a school of artists, but an alarm signal against declining values, routine and speculations, a desperate appeal, on behalf of all forms of art, for a creative basis on which to build a new and universal consciousness of art. (Hugo Ball)
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