Audio_1_Changes in humpback whale song structure and complexity reveal a rapid evolution on a feeding ground in Northern Norway.wav

Singing behaviour by male humpback whales (Megaptera novaeangliae) has traditionally been associated with low-latitude breeding grounds. However, in recent years, this vocal behaviour has been increasingly reported outside these areas. All singers in a given population sing the same version of a son...

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Bibliographic Details
Main Authors: Saskia C. Tyarks (14239100), Ana S. Aniceto (10860987), Heidi Ahonen (10860990), Geir Pedersen (412604), Ulf Lindstrøm (641757)
Format: Dataset
Language:unknown
Published: 2022
Subjects:
Online Access:https://doi.org/10.3389/fmars.2022.862794.s001
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spelling ftunivfreestate:oai:figshare.com:article/21700439 2023-05-15T16:35:56+02:00 Audio_1_Changes in humpback whale song structure and complexity reveal a rapid evolution on a feeding ground in Northern Norway.wav Saskia C. Tyarks (14239100) Ana S. Aniceto (10860987) Heidi Ahonen (10860990) Geir Pedersen (412604) Ulf Lindstrøm (641757) 2022-12-09T04:38:26Z https://doi.org/10.3389/fmars.2022.862794.s001 unknown https://figshare.com/articles/media/Audio_1_Changes_in_humpback_whale_song_structure_and_complexity_reveal_a_rapid_evolution_on_a_feeding_ground_in_Northern_Norway_wav/21700439 doi:10.3389/fmars.2022.862794.s001 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering passive acoustic monitoring singing Megaptera novaeangliae North Atlantic vocal behavior song progression Dataset Media 2022 ftunivfreestate https://doi.org/10.3389/fmars.2022.862794.s001 2022-12-16T00:41:12Z Singing behaviour by male humpback whales (Megaptera novaeangliae) has traditionally been associated with low-latitude breeding grounds. However, in recent years, this vocal behaviour has been increasingly reported outside these areas. All singers in a given population sing the same version of a song and this song is continually evolving over time with modifications on different levels within the song structure. Tracing changes in whale song will help to undercover the drivers underlying this vocal display and contribute to the understanding of animal culture and its evolution. To determine the progressive changes in songs found on a subarctic feeding ground and migratory stopover, a detailed analysis of humpback whale song recordings from Northern Norway was conducted. Passive acoustic data from the Lofoten-Vesterålen Ocean Observatory (LoVe), collected using a bottom-moored underwater hydrophone, were used from January - April 2018 and January 2019. Two measures of the song structure were examined: (1) sequence similarities using the Levenshtein distance and (2) song complexity using a principal component analysis (PCA). In total, 21 distinct themes were identified which presented highly directional, structural changes over time. Two themes from 2018 reoccurred in 2019, whereas all other themes in 2019 appeared to be evolved versions of 2018 themes. All songs grouped into three general clusters, reflecting the rapid evolution over the study period. With all sampled animals singing the same version of the song, this might indicate that the singers are either from the same breeding population or that song learning occurred before the study period. Song complexity appeared to follow the trend of song progression; songs became more complex as they evolved over the months in 2018 and decreased in complexity between the years, returning to a more simplified song in 2019. The results confirm that humpback whale song exhibits a rapid progression on a shared subarctic feeding ground, with strong potential for song ... Dataset Humpback Whale Lofoten Megaptera novaeangliae North Atlantic Northern Norway Subarctic Vesterålen KovsieScholar Repository (University of the Free State - UFS UV) Lofoten Norway Vesterålen ENVELOPE(14.939,14.939,68.754,68.754)
institution Open Polar
collection KovsieScholar Repository (University of the Free State - UFS UV)
op_collection_id ftunivfreestate
language unknown
topic Oceanography
Marine Biology
Marine Geoscience
Biological Oceanography
Chemical Oceanography
Physical Oceanography
Marine Engineering
passive acoustic monitoring
singing
Megaptera novaeangliae
North Atlantic
vocal behavior
song progression
spellingShingle Oceanography
Marine Biology
Marine Geoscience
Biological Oceanography
Chemical Oceanography
Physical Oceanography
Marine Engineering
passive acoustic monitoring
singing
Megaptera novaeangliae
North Atlantic
vocal behavior
song progression
Saskia C. Tyarks (14239100)
Ana S. Aniceto (10860987)
Heidi Ahonen (10860990)
Geir Pedersen (412604)
Ulf Lindstrøm (641757)
Audio_1_Changes in humpback whale song structure and complexity reveal a rapid evolution on a feeding ground in Northern Norway.wav
topic_facet Oceanography
Marine Biology
Marine Geoscience
Biological Oceanography
Chemical Oceanography
Physical Oceanography
Marine Engineering
passive acoustic monitoring
singing
Megaptera novaeangliae
North Atlantic
vocal behavior
song progression
description Singing behaviour by male humpback whales (Megaptera novaeangliae) has traditionally been associated with low-latitude breeding grounds. However, in recent years, this vocal behaviour has been increasingly reported outside these areas. All singers in a given population sing the same version of a song and this song is continually evolving over time with modifications on different levels within the song structure. Tracing changes in whale song will help to undercover the drivers underlying this vocal display and contribute to the understanding of animal culture and its evolution. To determine the progressive changes in songs found on a subarctic feeding ground and migratory stopover, a detailed analysis of humpback whale song recordings from Northern Norway was conducted. Passive acoustic data from the Lofoten-Vesterålen Ocean Observatory (LoVe), collected using a bottom-moored underwater hydrophone, were used from January - April 2018 and January 2019. Two measures of the song structure were examined: (1) sequence similarities using the Levenshtein distance and (2) song complexity using a principal component analysis (PCA). In total, 21 distinct themes were identified which presented highly directional, structural changes over time. Two themes from 2018 reoccurred in 2019, whereas all other themes in 2019 appeared to be evolved versions of 2018 themes. All songs grouped into three general clusters, reflecting the rapid evolution over the study period. With all sampled animals singing the same version of the song, this might indicate that the singers are either from the same breeding population or that song learning occurred before the study period. Song complexity appeared to follow the trend of song progression; songs became more complex as they evolved over the months in 2018 and decreased in complexity between the years, returning to a more simplified song in 2019. The results confirm that humpback whale song exhibits a rapid progression on a shared subarctic feeding ground, with strong potential for song ...
format Dataset
author Saskia C. Tyarks (14239100)
Ana S. Aniceto (10860987)
Heidi Ahonen (10860990)
Geir Pedersen (412604)
Ulf Lindstrøm (641757)
author_facet Saskia C. Tyarks (14239100)
Ana S. Aniceto (10860987)
Heidi Ahonen (10860990)
Geir Pedersen (412604)
Ulf Lindstrøm (641757)
author_sort Saskia C. Tyarks (14239100)
title Audio_1_Changes in humpback whale song structure and complexity reveal a rapid evolution on a feeding ground in Northern Norway.wav
title_short Audio_1_Changes in humpback whale song structure and complexity reveal a rapid evolution on a feeding ground in Northern Norway.wav
title_full Audio_1_Changes in humpback whale song structure and complexity reveal a rapid evolution on a feeding ground in Northern Norway.wav
title_fullStr Audio_1_Changes in humpback whale song structure and complexity reveal a rapid evolution on a feeding ground in Northern Norway.wav
title_full_unstemmed Audio_1_Changes in humpback whale song structure and complexity reveal a rapid evolution on a feeding ground in Northern Norway.wav
title_sort audio_1_changes in humpback whale song structure and complexity reveal a rapid evolution on a feeding ground in northern norway.wav
publishDate 2022
url https://doi.org/10.3389/fmars.2022.862794.s001
long_lat ENVELOPE(14.939,14.939,68.754,68.754)
geographic Lofoten
Norway
Vesterålen
geographic_facet Lofoten
Norway
Vesterålen
genre Humpback Whale
Lofoten
Megaptera novaeangliae
North Atlantic
Northern Norway
Subarctic
Vesterålen
genre_facet Humpback Whale
Lofoten
Megaptera novaeangliae
North Atlantic
Northern Norway
Subarctic
Vesterålen
op_relation https://figshare.com/articles/media/Audio_1_Changes_in_humpback_whale_song_structure_and_complexity_reveal_a_rapid_evolution_on_a_feeding_ground_in_Northern_Norway_wav/21700439
doi:10.3389/fmars.2022.862794.s001
op_rights CC BY 4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.3389/fmars.2022.862794.s001
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