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


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

First published online August 31, 2007
Journal of Experimental Biology 210, 3160-3164 (2007)
Published by The Company of Biologists 2007
doi: 10.1242/jeb.008136
This Article
Right arrow Figures Only
Right arrow Full Text
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 Related articles in JEB
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
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 Pollack, G. S.
Right arrow Articles by Martins, R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Pollack, G. S.
Right arrow Articles by Martins, R.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Flight and hearing: ultrasound sensitivity differs between flight-capable and flight-incapable morphs of a wing-dimorphic cricket species

Gerald S. Pollack* and Ruben Martins

Department of Biology, McGill University, 1205 Avenue Docteur Penfield, Montreal, QC, H3A 1B1, Canada

* Author for correspondence (e-mail: gerald.pollack{at}mcgill.ca)

Accepted 11 July 2007

We studied frequency sensitivity of flight-capable and flight-incapable forms of the wing-dimorphic cricket Gryllus texensis, using both behavioral and neurophysiological measurements. Behavioral thresholds for negative phonotaxis in response to ultrasound stimuli are lower for long-winged (i.e. flight-capable) crickets than for short-winged (flight-incapable) individuals, whereas thresholds for positive phonotaxis in response to a calling-song model do not differ. Similarly, thresholds of the identified interneurons ON1 and AN2 differ between flight morphs for high sound frequencies but not for the frequency of calling song. Our results show that sensitivity to ultrasound is closely linked to flight ability, and thus to the risk of predation from aerially hawking bats. We suggest that sensitivity to ultrasound is one of a suite of flight-associated characteristics, the development of which may be under common hormonal regulation.

Key words: bat predation, phonotaxis, juvenile hormone


Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?

Related articles in JEB:

FLYING CRICKETS HEAR ULTRASOUND BETTER

JEB 2007 210: i. [Full Text]  



This article has been cited by other articles:


Home page
 J. Exp. Biol.Home page
FLYING CRICKETS HEAR ULTRASOUND BETTER
J. Exp. Biol., September 15, 2007; 210(18): i - i.
[Full Text] [PDF]


© The Company of Biologists Ltd 2007