spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by FOSTER, J. A.
Right arrow Articles by ROBERTSON, R. M.
Right arrow Search for Related Content
PubMed
Right arrow Articles by FOSTER, J. A.
Right arrow Articles by ROBERTSON, R. M.
Journal of Experimental Biology 162,295-312 (1992)
Published by Company of Biologists 1992

Temperature Dependency of Wing-Beat Frequency in Intact and Deafferented Locusts

JANE A. FOSTER 1 and R. MELDRUM ROBERTSON 1

1 Department of Biology, Queen's University, Kingston, Ontario, Canada, K7L 3N6

To whom reprint requests should be addressed.

Locusts do not regulate thoracic temperature during flight and as a result the thoracic temperature of a flying locust generally exceeds ambient temperature by 5-8 °C. Elevated thoracic temperatures were shown to affect wing-beat frequency in intact and deafferented Locusta migratoria. Tethered locusts were flown in a wind tunnel. Temperature was elevated by increasing the ambient temperature of the apparatus and by exposing flying animals to heat pulses. Electromyographic (EMG) recordings were made in deafferented locusts perfused with salines at different temperatures. Wing-beat frequency was shown to vary with thoracic temperature in both the intact and the deafferented situation. The slope of the rise in wing-beat frequency with experimental increases in thoracic temperature was similar in intact and deafferented animals. These experiments demonstrate an effect of temperature on the central flight circuitry. Further intracellular investigationsare needed to determine the neural basis of these effects.

Key words: locust, flight, temperature, electromyogram, Locusta migratoria

Accepted on September 11, 1991




This article has been cited by other articles:


Home page
 Integr. Comp. Biol.Home page
R. M. Robertson
Modulation of Neural Circuit Operation by Prior Environmental Stress
Integr. Comp. Biol., February 1, 2004; 44(1): 21 - 27.
[Abstract] [Full Text] [PDF]


© The Company of Biologists Ltd 1992