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Revisiting adaptations of neotropical katydids (Orthoptera: Tettigoniidae) to gleaning bat predation

All animals have defenses against predators, but assessing the effectiveness of such traits is challenging. Neotropical katydids (Orthoptera: Tettigoniidae) are an abundant, ubiquitous, and diverse group of large insects eaten by a variety of predators, including substrate-gleaning bats. Gleaning ba...

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Autores principales: ter Hofstede, Hannah, Voigt-Heucke, Silke, Lang, Alexander, Römer, Heinrich, Page, Rachel, Faure, Paul, Dechmann, Dina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Taylor & Francis 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5312797/
https://www.ncbi.nlm.nih.gov/pubmed/28261664
http://dx.doi.org/10.1080/23766808.2016.1272314
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author ter Hofstede, Hannah
Voigt-Heucke, Silke
Lang, Alexander
Römer, Heinrich
Page, Rachel
Faure, Paul
Dechmann, Dina
author_facet ter Hofstede, Hannah
Voigt-Heucke, Silke
Lang, Alexander
Römer, Heinrich
Page, Rachel
Faure, Paul
Dechmann, Dina
author_sort ter Hofstede, Hannah
collection PubMed
description All animals have defenses against predators, but assessing the effectiveness of such traits is challenging. Neotropical katydids (Orthoptera: Tettigoniidae) are an abundant, ubiquitous, and diverse group of large insects eaten by a variety of predators, including substrate-gleaning bats. Gleaning bats capture food from surfaces and usually use prey-generated sounds to detect and locate prey. A number of Neotropical katydid signaling traits, such as the emission of ultrasonic frequencies, substrate vibration communication, infrequent calling, and ultrasound-evoked song cessation are thought to have evolved as defenses against substrate-gleaning bats. We collected insect remains from hairy big-eared bat (Micronycteris hirsuta) roosts in Panama. We identified insect remains to order, species, or genus and quantified the proportion of prey with defenses against predatory bats based on defenses described in the literature. Most remains were from katydids and half of those were from species with documented defenses against substrate-gleaning bats. Many culled remains were from insects that do not emit mate-calling songs (e.g. beetles, dragonflies, cockroaches, and female katydids), indicating that eavesdropping on prey signals is not the only prey-finding strategy used by this bat. Our results show that substrate-gleaning bats can occasionally overcome katydid defenses.
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spelling pubmed-53127972017-03-02 Revisiting adaptations of neotropical katydids (Orthoptera: Tettigoniidae) to gleaning bat predation ter Hofstede, Hannah Voigt-Heucke, Silke Lang, Alexander Römer, Heinrich Page, Rachel Faure, Paul Dechmann, Dina Neotrop Biodivers Original Articles All animals have defenses against predators, but assessing the effectiveness of such traits is challenging. Neotropical katydids (Orthoptera: Tettigoniidae) are an abundant, ubiquitous, and diverse group of large insects eaten by a variety of predators, including substrate-gleaning bats. Gleaning bats capture food from surfaces and usually use prey-generated sounds to detect and locate prey. A number of Neotropical katydid signaling traits, such as the emission of ultrasonic frequencies, substrate vibration communication, infrequent calling, and ultrasound-evoked song cessation are thought to have evolved as defenses against substrate-gleaning bats. We collected insect remains from hairy big-eared bat (Micronycteris hirsuta) roosts in Panama. We identified insect remains to order, species, or genus and quantified the proportion of prey with defenses against predatory bats based on defenses described in the literature. Most remains were from katydids and half of those were from species with documented defenses against substrate-gleaning bats. Many culled remains were from insects that do not emit mate-calling songs (e.g. beetles, dragonflies, cockroaches, and female katydids), indicating that eavesdropping on prey signals is not the only prey-finding strategy used by this bat. Our results show that substrate-gleaning bats can occasionally overcome katydid defenses. Taylor & Francis 2017-01-01 2017-01-24 /pmc/articles/PMC5312797/ /pubmed/28261664 http://dx.doi.org/10.1080/23766808.2016.1272314 Text en © 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
ter Hofstede, Hannah
Voigt-Heucke, Silke
Lang, Alexander
Römer, Heinrich
Page, Rachel
Faure, Paul
Dechmann, Dina
Revisiting adaptations of neotropical katydids (Orthoptera: Tettigoniidae) to gleaning bat predation
title Revisiting adaptations of neotropical katydids (Orthoptera: Tettigoniidae) to gleaning bat predation
title_full Revisiting adaptations of neotropical katydids (Orthoptera: Tettigoniidae) to gleaning bat predation
title_fullStr Revisiting adaptations of neotropical katydids (Orthoptera: Tettigoniidae) to gleaning bat predation
title_full_unstemmed Revisiting adaptations of neotropical katydids (Orthoptera: Tettigoniidae) to gleaning bat predation
title_short Revisiting adaptations of neotropical katydids (Orthoptera: Tettigoniidae) to gleaning bat predation
title_sort revisiting adaptations of neotropical katydids (orthoptera: tettigoniidae) to gleaning bat predation
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5312797/
https://www.ncbi.nlm.nih.gov/pubmed/28261664
http://dx.doi.org/10.1080/23766808.2016.1272314
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