Presentation Details
| Characterizing multimodal communication in gladiator meadow katydids (Orchelimum gladiator) Thalia León Rodríguez1, Chante Jacobs1, Jared Swensen1, Flavia Barbosa1, Jennifer A.Hamel2. 1Lake Forest College, Lake Forest, Illinois, USA.2Elon University, Elon, North Carolina, USA |
Abstract
Animals can communicate using multiple sensory modalities, a phenomenon known as multimodal communication. Katydids (Orthoptera: Tettigoniidae) produce acoustic signals, but many species can also produce tremulations, which are substrate-borne vibrations. The acoustic calls of the gladiator meadow katydid, Orchelimum gladiator, have been previously studied; however, it was unknown whether they also produce tremulations. We tested the hypothesis that this species engages in multimodal signaling where calls and tremulations contain different information and are used in different social contexts. We exposed field-collected males to three treatments: with another male, with a female, and solitary. We video-recorded behavior and recorded acoustic calls and plant-borne vibrations under these three conditions. Tremulations were observed by both males and females in all contexts except the solitary condition, which is to the best of our knowledge the first record of this behavior in this species. These results indicate that tremulations are associated with social interactions rather than occurring in isolation, while acoustic signals vary by social context.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.
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