Results 111 to 120 of about 281 (148)
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Journal of Chemical Education, 1972
The chemistry behind the bombardier beetle's chemical defenses illustrates the principles of reaction rates, catalysis, and laboratory safety.
Robert C Plumb
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The chemistry behind the bombardier beetle's chemical defenses illustrates the principles of reaction rates, catalysis, and laboratory safety.
Robert C Plumb
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Nonlinear Dynamics of the Bombardier Beetle
Volume 7B: 17th Biennial Conference on Mechanical Vibration and Noise, 1999 Abstract This work investigates the dynamics by which the bombardier beetle releases a pulsed jet of fluid as a defense mechanism. A mathematical model is proposed which takes the form of a pair of piece wise continuous differential equations with dependent variables as fluid pressure and quantity of reactant.
Richard H. Rand +2 more
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Effect of bombardier beetle spray on a wolf spider: repellency and leg autotomy
Chemoecology, 2006Data are presented on the repellency of the spray of a bombardier beetle (Pheropsophus aequinoctialis) to a lycosid spider (Lycosa ceratiola). The secretion is shown to cause the spider to desist from its assault on the beetle within, on average, 58 ms of onset of the beetle’s secretory emission, a reaction time that is at a par with latencies ...
Thomas Eisner +2 more
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Arthropod Structure & Development, 2015 This paper provides the first comparative anatomical study of the explosive pygidial defensive system of bombardier beetles in species classified in three brachinine subtribes: Brachinus (Brachinina), Pheropsophus (Pheropsophina) and Aptinus (Aptinina).
Andrea, Di Giulio +2 more
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The protective role of the spray mechanism of the bombardier beetle, Brachynus ballistarius Lec.
Journal of Insect Physiology, 1958Abstract Bombardier beetles, Brachynus ballistarius Lec., subjected to controlled traumatic stimuli or to predator attacks, always responded instantly by ejecting a spray from the tips of their abdomens. The spray was not directed at random, but through rotation of the end of the abdomen was always aimed accurately toward the particular appendage or ...
T Eisner
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Defense of bombardier beetles against avian predators
The Science of Nature, 2020Bombardier beetles (Coleoptera, Carabidae, Brachininae) possess a remarkable defense mechanism where a hot chemical spray is released from the tip of their abdomen, with an audible explosive sound. To date, the repellent properties of these chemicals have been tested against a limited number of taxa, such as amphibians and insects.
Wataru Kojima, Ryo Yamamoto
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Spray Technologies Inspired by Bombardier Beetle
, 2016 Alexander Booth +5 more
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Defensive Spray of the Bombardier Beetle: a Biological Pulse Jet
Science, 1990The defensive spray of the bombardier beetle Stenaptinus insignis is ejected in quick pulses (at about 500 pulses per second) rather than as a continuous stream. The pulsation may be a consequence of intermittency in the explosive chemical process that generates the spray.
J, Dean +3 more
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