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In-air hearing of the great cormorant (Phalacrocorax carbo)

Many aquatic birds use sounds extensively for in-air communication. Regardless of this, we know very little about their hearing abilities. The in-air audiogram of a male adult great cormorant (Phalacrocorax carbo) was determined using psychophysical methods (method of constants). Hearing thresholds...

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Detalles Bibliográficos
Autores principales: Maxwell, Alyssa, Hansen, Kirstin Anderson, Ortiz, Sara Torres, Larsen, Ole Næsbye, Siebert, Ursula, Wahlberg, Magnus
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Company of Biologists Ltd 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5399558/
https://www.ncbi.nlm.nih.gov/pubmed/28288967
http://dx.doi.org/10.1242/bio.023879
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author Maxwell, Alyssa
Hansen, Kirstin Anderson
Ortiz, Sara Torres
Larsen, Ole Næsbye
Siebert, Ursula
Wahlberg, Magnus
author_facet Maxwell, Alyssa
Hansen, Kirstin Anderson
Ortiz, Sara Torres
Larsen, Ole Næsbye
Siebert, Ursula
Wahlberg, Magnus
author_sort Maxwell, Alyssa
collection PubMed
description Many aquatic birds use sounds extensively for in-air communication. Regardless of this, we know very little about their hearing abilities. The in-air audiogram of a male adult great cormorant (Phalacrocorax carbo) was determined using psychophysical methods (method of constants). Hearing thresholds were derived using pure tones of five different frequencies. The lowest threshold was at 2 kHz: 18 dB re 20 µPa rms. Thresholds derived using signal detection theory were within 2 dB of the ones derived using classical psychophysics. The great cormorant is more sensitive to in-air sounds than previously believed and its hearing abilities are comparable to several other species of birds of similar size. This knowledge is important for our understanding of the hearing abilities of other species of sea birds. It can also be used to develop cormorant deterrent devices for fisheries, as well as to assess the impact of increasing in-air anthropogenic noise levels on cormorants and other aquatic birds.
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spelling pubmed-53995582017-05-02 In-air hearing of the great cormorant (Phalacrocorax carbo) Maxwell, Alyssa Hansen, Kirstin Anderson Ortiz, Sara Torres Larsen, Ole Næsbye Siebert, Ursula Wahlberg, Magnus Biol Open Research Article Many aquatic birds use sounds extensively for in-air communication. Regardless of this, we know very little about their hearing abilities. The in-air audiogram of a male adult great cormorant (Phalacrocorax carbo) was determined using psychophysical methods (method of constants). Hearing thresholds were derived using pure tones of five different frequencies. The lowest threshold was at 2 kHz: 18 dB re 20 µPa rms. Thresholds derived using signal detection theory were within 2 dB of the ones derived using classical psychophysics. The great cormorant is more sensitive to in-air sounds than previously believed and its hearing abilities are comparable to several other species of birds of similar size. This knowledge is important for our understanding of the hearing abilities of other species of sea birds. It can also be used to develop cormorant deterrent devices for fisheries, as well as to assess the impact of increasing in-air anthropogenic noise levels on cormorants and other aquatic birds. The Company of Biologists Ltd 2017-03-13 /pmc/articles/PMC5399558/ /pubmed/28288967 http://dx.doi.org/10.1242/bio.023879 Text en © 2017. Published by The Company of Biologists Ltd http://creativecommons.org/licenses/by/3.0This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.
spellingShingle Research Article
Maxwell, Alyssa
Hansen, Kirstin Anderson
Ortiz, Sara Torres
Larsen, Ole Næsbye
Siebert, Ursula
Wahlberg, Magnus
In-air hearing of the great cormorant (Phalacrocorax carbo)
title In-air hearing of the great cormorant (Phalacrocorax carbo)
title_full In-air hearing of the great cormorant (Phalacrocorax carbo)
title_fullStr In-air hearing of the great cormorant (Phalacrocorax carbo)
title_full_unstemmed In-air hearing of the great cormorant (Phalacrocorax carbo)
title_short In-air hearing of the great cormorant (Phalacrocorax carbo)
title_sort in-air hearing of the great cormorant (phalacrocorax carbo)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5399558/
https://www.ncbi.nlm.nih.gov/pubmed/28288967
http://dx.doi.org/10.1242/bio.023879
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