No evidence for spectral jamming avoidance in echolocation behavior of foraging pipistrelle bats
Frequency shifts in signals of bats flying near conspecifics have been interpreted as a spectral jamming avoidance response (JAR). However, several prerequisites supporting a JAR hypothesis have not been controlled for in previous studies. We recorded flight and echolocation behavior of foraging Pip...
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ftpubmed:oai:pubmedcentral.nih.gov:4977515 2023-05-15T17:59:54+02:00 No evidence for spectral jamming avoidance in echolocation behavior of foraging pipistrelle bats Götze, Simone Koblitz, Jens C. Denzinger, Annette Schnitzler, Hans-Ulrich 2016-08-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4977515/ http://www.ncbi.nlm.nih.gov/pubmed/27502900 https://doi.org/10.1038/srep30978 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4977515/ http://www.ncbi.nlm.nih.gov/pubmed/27502900 http://dx.doi.org/10.1038/srep30978 Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2016 ftpubmed https://doi.org/10.1038/srep30978 2016-08-28T00:06:38Z Frequency shifts in signals of bats flying near conspecifics have been interpreted as a spectral jamming avoidance response (JAR). However, several prerequisites supporting a JAR hypothesis have not been controlled for in previous studies. We recorded flight and echolocation behavior of foraging Pipistrellus pipistrellus while flying alone and with a conspecific and tested whether frequency changes were due to a spectral JAR with an increased frequency difference, or whether changes could be explained by other reactions. P. pipistrellus reacted to conspecifics with a reduction of sound duration and often also pulse interval, accompanied by an increase in terminal frequency. This reaction is typical of behavioral situations where targets of interest have captured the bat’s attention and initiated a more detailed exploration. All observed frequency changes were predicted by the attention reaction alone, and do not support the JAR hypothesis of increased frequency separation. Reaction distances of 1–11 m suggest that the attention response may be elicited either by detection of the conspecific by short range active echolocation or by long range passive acoustic detection of echolocation calls. Text Pipistrellus pipistrellus PubMed Central (PMC) Scientific Reports 6 1 |
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Article Götze, Simone Koblitz, Jens C. Denzinger, Annette Schnitzler, Hans-Ulrich No evidence for spectral jamming avoidance in echolocation behavior of foraging pipistrelle bats |
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Article |
description |
Frequency shifts in signals of bats flying near conspecifics have been interpreted as a spectral jamming avoidance response (JAR). However, several prerequisites supporting a JAR hypothesis have not been controlled for in previous studies. We recorded flight and echolocation behavior of foraging Pipistrellus pipistrellus while flying alone and with a conspecific and tested whether frequency changes were due to a spectral JAR with an increased frequency difference, or whether changes could be explained by other reactions. P. pipistrellus reacted to conspecifics with a reduction of sound duration and often also pulse interval, accompanied by an increase in terminal frequency. This reaction is typical of behavioral situations where targets of interest have captured the bat’s attention and initiated a more detailed exploration. All observed frequency changes were predicted by the attention reaction alone, and do not support the JAR hypothesis of increased frequency separation. Reaction distances of 1–11 m suggest that the attention response may be elicited either by detection of the conspecific by short range active echolocation or by long range passive acoustic detection of echolocation calls. |
format |
Text |
author |
Götze, Simone Koblitz, Jens C. Denzinger, Annette Schnitzler, Hans-Ulrich |
author_facet |
Götze, Simone Koblitz, Jens C. Denzinger, Annette Schnitzler, Hans-Ulrich |
author_sort |
Götze, Simone |
title |
No evidence for spectral jamming avoidance in echolocation behavior of foraging pipistrelle bats |
title_short |
No evidence for spectral jamming avoidance in echolocation behavior of foraging pipistrelle bats |
title_full |
No evidence for spectral jamming avoidance in echolocation behavior of foraging pipistrelle bats |
title_fullStr |
No evidence for spectral jamming avoidance in echolocation behavior of foraging pipistrelle bats |
title_full_unstemmed |
No evidence for spectral jamming avoidance in echolocation behavior of foraging pipistrelle bats |
title_sort |
no evidence for spectral jamming avoidance in echolocation behavior of foraging pipistrelle bats |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4977515/ http://www.ncbi.nlm.nih.gov/pubmed/27502900 https://doi.org/10.1038/srep30978 |
genre |
Pipistrellus pipistrellus |
genre_facet |
Pipistrellus pipistrellus |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4977515/ http://www.ncbi.nlm.nih.gov/pubmed/27502900 http://dx.doi.org/10.1038/srep30978 |
op_rights |
Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
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https://doi.org/10.1038/srep30978 |
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