Data from: Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena)
Toothed whales use sonar to detect, locate, and track prey. They adjust emitted sound intensity, auditory sensitivity and click rate to target range, and terminate prey pursuits with high-repetition-rate, low-intensity buzzes. However, their narrow acoustic field of view (FOV) is considered stable t...
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Online Access: | https://doi.org/10.5061/dryad.11b0f |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::91ff321d26b5c4966ca477fc3e61c497 2023-05-15T17:59:10+02:00 Data from: Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena) Wisniewska, Danuta M. Ratcliffe, John M. Beedholm, Kristian Christensen, Christian B. Johnson, Mark Koblitz, Jens C. Wahlberg, Magnus Madsen, Peter M. Ratcliffe, John M Koblitz, Jens C Wisniewska, Danuta M Christensen, Christian B Madsen, Peter T 2015-01-01 https://doi.org/10.5061/dryad.11b0f undefined unknown http://dx.doi.org/10.5061/dryad.11b0f https://dx.doi.org/10.5061/dryad.11b0f lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:87752 oai:easy.dans.knaw.nl:easy-dataset:87752 10.5061/dryad.11b0f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Life sciences medicine and health care beam convergent evolution Phocoena phocoena directionality prey capture buzz biosonar info envir Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2015 fttriple https://doi.org/10.5061/dryad.11b0f 2023-01-22T17:23:41Z Toothed whales use sonar to detect, locate, and track prey. They adjust emitted sound intensity, auditory sensitivity and click rate to target range, and terminate prey pursuits with high-repetition-rate, low-intensity buzzes. However, their narrow acoustic field of view (FOV) is considered stable throughout target approach, which could facilitate prey escape at close-range. Here, we show that, like some bats, harbour porpoises can broaden their biosonar beam during the terminal phase of attack but, unlike bats, maintain the ability to change beamwidth within this phase. Based on video, MRI, and acoustic-tag recordings, we propose this flexibility is modulated by the melon and implemented to accommodate dynamic spatial relationships with prey and acoustic complexity of surroundings. Despite independent evolution and different means of sound generation and transmission, whales and bats adaptively change their FOV, suggesting that beamwidth flexibility has been an important driver in the evolution of echolocation for prey tracking. frame_hydro31102012a schematic showing the arrangement of individual hydrophones on the arrayframe more31102012an excel sheet linking the hydrophones id numbers to the channels in the recording systemdtag audio filedtag audio file for the 12th trial of the afternoon session on 31/10/2012, as well as matlab structures with outputs of click detectors, an echogram and an inter-click interval scatter plot (color-coded with relative apparent output level of the clicks)dtag.ziphydrophone relative calibration valuescalibration values (linear scale) of hydrophones relative to the hydrophone in the located in the centre of the array. each day a calibration was conducted to account for small differences int the array orientation or hydrophone placement between recording days. a short sweep was played from across the porpoise pool and recorded on all hydrophones. raw data available upon requestcalibrationValues.matfreja31102012_af12(ADpeak5.0V)_31-10-2012_14_01_52the folder contains recordings ... Dataset Phocoena phocoena toothed whales Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care beam convergent evolution Phocoena phocoena directionality prey capture buzz biosonar info envir |
spellingShingle |
Life sciences medicine and health care beam convergent evolution Phocoena phocoena directionality prey capture buzz biosonar info envir Wisniewska, Danuta M. Ratcliffe, John M. Beedholm, Kristian Christensen, Christian B. Johnson, Mark Koblitz, Jens C. Wahlberg, Magnus Madsen, Peter M. Ratcliffe, John M Koblitz, Jens C Wisniewska, Danuta M Christensen, Christian B Madsen, Peter T Data from: Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena) |
topic_facet |
Life sciences medicine and health care beam convergent evolution Phocoena phocoena directionality prey capture buzz biosonar info envir |
description |
Toothed whales use sonar to detect, locate, and track prey. They adjust emitted sound intensity, auditory sensitivity and click rate to target range, and terminate prey pursuits with high-repetition-rate, low-intensity buzzes. However, their narrow acoustic field of view (FOV) is considered stable throughout target approach, which could facilitate prey escape at close-range. Here, we show that, like some bats, harbour porpoises can broaden their biosonar beam during the terminal phase of attack but, unlike bats, maintain the ability to change beamwidth within this phase. Based on video, MRI, and acoustic-tag recordings, we propose this flexibility is modulated by the melon and implemented to accommodate dynamic spatial relationships with prey and acoustic complexity of surroundings. Despite independent evolution and different means of sound generation and transmission, whales and bats adaptively change their FOV, suggesting that beamwidth flexibility has been an important driver in the evolution of echolocation for prey tracking. frame_hydro31102012a schematic showing the arrangement of individual hydrophones on the arrayframe more31102012an excel sheet linking the hydrophones id numbers to the channels in the recording systemdtag audio filedtag audio file for the 12th trial of the afternoon session on 31/10/2012, as well as matlab structures with outputs of click detectors, an echogram and an inter-click interval scatter plot (color-coded with relative apparent output level of the clicks)dtag.ziphydrophone relative calibration valuescalibration values (linear scale) of hydrophones relative to the hydrophone in the located in the centre of the array. each day a calibration was conducted to account for small differences int the array orientation or hydrophone placement between recording days. a short sweep was played from across the porpoise pool and recorded on all hydrophones. raw data available upon requestcalibrationValues.matfreja31102012_af12(ADpeak5.0V)_31-10-2012_14_01_52the folder contains recordings ... |
format |
Dataset |
author |
Wisniewska, Danuta M. Ratcliffe, John M. Beedholm, Kristian Christensen, Christian B. Johnson, Mark Koblitz, Jens C. Wahlberg, Magnus Madsen, Peter M. Ratcliffe, John M Koblitz, Jens C Wisniewska, Danuta M Christensen, Christian B Madsen, Peter T |
author_facet |
Wisniewska, Danuta M. Ratcliffe, John M. Beedholm, Kristian Christensen, Christian B. Johnson, Mark Koblitz, Jens C. Wahlberg, Magnus Madsen, Peter M. Ratcliffe, John M Koblitz, Jens C Wisniewska, Danuta M Christensen, Christian B Madsen, Peter T |
author_sort |
Wisniewska, Danuta M. |
title |
Data from: Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena) |
title_short |
Data from: Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena) |
title_full |
Data from: Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena) |
title_fullStr |
Data from: Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena) |
title_full_unstemmed |
Data from: Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena) |
title_sort |
data from: range-dependent flexibility in the acoustic field of view of echolocating porpoises (phocoena phocoena) |
publishDate |
2015 |
url |
https://doi.org/10.5061/dryad.11b0f |
genre |
Phocoena phocoena toothed whales |
genre_facet |
Phocoena phocoena toothed whales |
op_source |
oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:87752 oai:easy.dans.knaw.nl:easy-dataset:87752 10.5061/dryad.11b0f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
http://dx.doi.org/10.5061/dryad.11b0f https://dx.doi.org/10.5061/dryad.11b0f |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.11b0f |
_version_ |
1766167925983543296 |