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Vibrational signaling in the Cook Strait giant weta (Deinacrida rugosa)

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Vibrational signaling in the Cook Strait giant weta (Deinacrida rugosa)

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Title	Vibrational signaling in the Cook Strait giant weta (Deinacrida rugosa)
Author	Schmidt, Ashley P.
Co-authors	Bestul, Claire E.; Moore, Courtney L.; Mason, Andrew C. Mason; Hall, Carrie L.; Howard, Daniel R.
Subject (LC)	Insect sounds--New Zealand Giant wetas
Abstract	Recently there has been a growing interdisciplinary interest in understanding the functional mechanisms and evolutionary origins of animal communication through substrate-borne vibration1,2,3, but few studies have successfully assembled a comprehensive understanding of vibrational communication within and across a related group. The genus Deinacrida (giant weta) is a clade of nocturnal, herbivorous, apterous Orthoptera belonging to the family Anosostomatidae4. They are of Gondwanan lineage with eleven endemic species found in New Zealand (Fig. 1a,b)5,6. Until now, the primary mechanism of intraspecific communication in this terrestrial group remained a mystery. The purpose of this study was to test the hypothesis that the Deinacrida utilize substrate-borne vibrational signals in communication. We look first at D. rugosa, the Cook Strait giant weta (Fig. 2). We sought to: 1) determine if the species uses vibrational signals, and if so 2) describe how the signal is produced, 3) describe the bioacoustic structure of the signal, 4) test the hypothesis that vibrational signaling is related to social context, and 5) determine the function of the vibrational signal.
Research affiliation	BRIN (Biomedical Research Infrastructure Network)
Collection	Augustana Student Research
Date	2013
Rights	This image may not be reproduced without the express written consent of Augustana University, Sioux Falls, South Dakota, USA.
Type	Poster
Medium	Image
Format - Digital	pdf