Geographic variation in the time‐frequency characteristics of high‐frequency whistles produced by killer whales ( Orcinus orca )
Abstract Investigating intraspecific variation in acoustic signals can indicate the extent of isolation and divergence between populations and adaptations to local environments. Here we analyze the variation in killer whale high‐frequency (>17 kH z) whistles recorded off Norway, Iceland, and...
Published in: | Marine Mammal Science |
---|---|
Main Authors: | , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2014
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/mms.12195 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12195 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12195 |
id |
crwiley:10.1111/mms.12195 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/mms.12195 2023-12-03T10:24:41+01:00 Geographic variation in the time‐frequency characteristics of high‐frequency whistles produced by killer whales ( Orcinus orca ) Samarra, Filipa I. P. Deecke, Volker B. Simonis, Anne E. Miller, Patrick J. O. Office of Naval Research Fundação para a Ciência e a Tecnologia Ocean Foundation Pacific Life Russell Trust Award (U. St Andrews) US Navy Living Marine Resources US Pacific Fleet 2014 http://dx.doi.org/10.1111/mms.12195 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12195 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12195 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 31, issue 2, page 688-706 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2014 crwiley https://doi.org/10.1111/mms.12195 2023-11-09T14:02:57Z Abstract Investigating intraspecific variation in acoustic signals can indicate the extent of isolation and divergence between populations and adaptations to local environments. Here we analyze the variation in killer whale high‐frequency (>17 kH z) whistles recorded off Norway, Iceland, and in the North Pacific. We used a combination of methods including multivariate comparisons of spectral and temporal parameters and categorization of contours to types. Our results show that spectral and temporal characteristics of high‐frequency whistles recorded in the North Pacific show significant differences from whistles recorded in the Northeast Atlantic, being generally stereotyped, lower in frequency, and slightly longer in duration. Most high‐frequency whistles from the North Pacific were downsweeps, whereas this was one of the least common types recorded in the Northeast Atlantic. The repertoire of whistles recorded in Norway was similar to Iceland, but whistles produced in Norway had significantly lower maximum frequency and frequency range. Most methods were able to discriminate between whistles of the North Pacific and the Northeast Atlantic, but were unable to consistently distinguish whistles from Iceland and Norway. This suggests that macro‐ and microgeographic differences in high‐frequency whistles of killer whales may reflect historical geographic isolation between ocean basins and more recent divergence between adjacent populations. Article in Journal/Newspaper Iceland Killer Whale Northeast Atlantic Orca Orcinus orca Killer whale Wiley Online Library (via Crossref) Pacific Norway Marine Mammal Science 31 2 688 706 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Samarra, Filipa I. P. Deecke, Volker B. Simonis, Anne E. Miller, Patrick J. O. Geographic variation in the time‐frequency characteristics of high‐frequency whistles produced by killer whales ( Orcinus orca ) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Investigating intraspecific variation in acoustic signals can indicate the extent of isolation and divergence between populations and adaptations to local environments. Here we analyze the variation in killer whale high‐frequency (>17 kH z) whistles recorded off Norway, Iceland, and in the North Pacific. We used a combination of methods including multivariate comparisons of spectral and temporal parameters and categorization of contours to types. Our results show that spectral and temporal characteristics of high‐frequency whistles recorded in the North Pacific show significant differences from whistles recorded in the Northeast Atlantic, being generally stereotyped, lower in frequency, and slightly longer in duration. Most high‐frequency whistles from the North Pacific were downsweeps, whereas this was one of the least common types recorded in the Northeast Atlantic. The repertoire of whistles recorded in Norway was similar to Iceland, but whistles produced in Norway had significantly lower maximum frequency and frequency range. Most methods were able to discriminate between whistles of the North Pacific and the Northeast Atlantic, but were unable to consistently distinguish whistles from Iceland and Norway. This suggests that macro‐ and microgeographic differences in high‐frequency whistles of killer whales may reflect historical geographic isolation between ocean basins and more recent divergence between adjacent populations. |
author2 |
Office of Naval Research Fundação para a Ciência e a Tecnologia Ocean Foundation Pacific Life Russell Trust Award (U. St Andrews) US Navy Living Marine Resources US Pacific Fleet |
format |
Article in Journal/Newspaper |
author |
Samarra, Filipa I. P. Deecke, Volker B. Simonis, Anne E. Miller, Patrick J. O. |
author_facet |
Samarra, Filipa I. P. Deecke, Volker B. Simonis, Anne E. Miller, Patrick J. O. |
author_sort |
Samarra, Filipa I. P. |
title |
Geographic variation in the time‐frequency characteristics of high‐frequency whistles produced by killer whales ( Orcinus orca ) |
title_short |
Geographic variation in the time‐frequency characteristics of high‐frequency whistles produced by killer whales ( Orcinus orca ) |
title_full |
Geographic variation in the time‐frequency characteristics of high‐frequency whistles produced by killer whales ( Orcinus orca ) |
title_fullStr |
Geographic variation in the time‐frequency characteristics of high‐frequency whistles produced by killer whales ( Orcinus orca ) |
title_full_unstemmed |
Geographic variation in the time‐frequency characteristics of high‐frequency whistles produced by killer whales ( Orcinus orca ) |
title_sort |
geographic variation in the time‐frequency characteristics of high‐frequency whistles produced by killer whales ( orcinus orca ) |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/mms.12195 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12195 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12195 |
geographic |
Pacific Norway |
geographic_facet |
Pacific Norway |
genre |
Iceland Killer Whale Northeast Atlantic Orca Orcinus orca Killer whale |
genre_facet |
Iceland Killer Whale Northeast Atlantic Orca Orcinus orca Killer whale |
op_source |
Marine Mammal Science volume 31, issue 2, page 688-706 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mms.12195 |
container_title |
Marine Mammal Science |
container_volume |
31 |
container_issue |
2 |
container_start_page |
688 |
op_container_end_page |
706 |
_version_ |
1784273190749470720 |