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First published online August 4, 2005
Journal of Experimental Biology 208, 3103-3107 (2005)
Published by The Company of Biologists 2005
doi: 10.1242/jeb.01735
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*Disaster Preparation and Recovery
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Shaken, not stirred: a serendipitous study of ants and earthquakes

John R. B. Lighton1,* and Frances D. Duncan2

1 Department of Biology, University of Nevada at Las Vegas, NV 89154-4004, USA
2 School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, PO Wits 2050, South Africa

* Author for correspondence (e-mail: jrlighton{at}aol.com)

Accepted 6 June 2005

There is anecdotal evidence for profound behavioral changes prior to and during earthquakes in many organisms, including arthropods such as ants. Behavioral or physiological analysis has often, in light of these reports, been proposed as a means of earthquake prediction. We report here a serendipitous study of the effect of the powerful Landers earthquake in the Mojave Desert, USA (Richter magnitude 7.4) on ant trail dynamics and aerobic catabolism in the desert harvester ant Messor pergandei. We monitored trail traffic rates to and from the colony, trail speed, worker mass distributions, rates of aerobic catabolism and temperature at ant height before and during the earthquake, and for 3 days after the earthquake. Contrary to anecdotal reports of earthquake effects on ant behavior, the Landers earthquake had no effect on any measured aspect of the physiology or behavior of M. pergandei. We conclude that anecdotal accounts of the effects of earthquakes or their precursors on insect behavior should be interpreted with caution.

Key words: ant behavior, earthquake prediction, Messor pergande


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Related articles in JEB:

CAN ANTS PREDICT EARTHQUAKES?
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JEB 2005 208: i. [Full Text]  



This article has been cited by other articles:


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CAN ANTS PREDICT EARTHQUAKES?
J. Exp. Biol., August 15, 2005; 208(16): i - i.
[Full Text] [PDF]


© The Company of Biologists Ltd 2005