NDLI: The effectiveness of katydid (Neoconocephalus ensiger) song cessation as antipredator defence against the gleaning bat Myotis septentrionalis

Content Provider	Springer Nature Link
Author	ter Hofstede, Hannah M. Ratcliffe, John M. Fullard, James H.
Copyright Year	2008
Abstract	Many nocturnal katydids (Orthoptera: Tettigoniidae) produce intense calling songs, and some bat species use these songs to detect and locate prey. One Nearctic katydid species, Neoconocephalus ensiger, ceases or pauses singing in response to bat echolocation calls. We tested the hypothesis that song cessation is an effective defence against gleaning bats (i.e., bats that take prey from surfaces). We observed Myotis septentrionalis, a sympatric bat species that uses prey-generated sounds when gleaning, attack and feed on singing N. ensiger in an outdoor flight room. These bats demonstrated a preference for the calling song of N. ensiger over a novel cricket calling song when they were broadcast from a speaker in the flight room. Bats attacked speakers broadcasting N. ensiger calling song as long as the song was continuous and aborted their attack if the sound stopped as they approached, regardless of whether a katydid was present as a physical target on the speaker. Echolocation calls were recorded during attacks and no significant differences were found between continuous and interrupted song approaches for four call parameters, suggesting that M. septentrionalis may not use echolocation to locate silent prey. Therefore, song cessation by katydids in response to ultrasound is an effective defence against gleaning bats.
Starting Page	217
Ending Page	226
Page Count	10
File Format	PDF
ISSN	03405443
Journal	Behavioral Ecology and Sociobiology
Volume Number	63
Issue Number	2
e-ISSN	14320762
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-09-16
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Antipredator behaviour Echolocation Gleaning Tettigoniidae Chiroptera Behavioural Sciences Zoology
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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