© the Mammalogical Society of Japan Songs of humpback whales Megaptera novaeangliae
Abstract. Changes in the songs of humpback whales Megaptera novaeangliae in the Ryukyu and Bonin regions of Japan were examined, and songs from the two regions were compared. Eighty-four song sessions in the Ryukyu region, from 1991 to 1997, and eleven song sessions in the Bonin region, from 1992 to...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.524.4211 2023-05-15T17:10:46+02:00 © the Mammalogical Society of Japan Songs of humpback whales Megaptera novaeangliae In The Ryukyu Bonin Regions Hidemasa Maedal Naoto Higashp Senzou Uchida Fumihiko Sato Takashi Koido Akira Takemura The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.524.4211 http://naosite.lb.nagasaki-u.ac.jp/dspace/bitstream/10069/20147/1/mamst25_1_59.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.524.4211 http://naosite.lb.nagasaki-u.ac.jp/dspace/bitstream/10069/20147/1/mamst25_1_59.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://naosite.lb.nagasaki-u.ac.jp/dspace/bitstream/10069/20147/1/mamst25_1_59.pdf text ftciteseerx 2016-01-08T10:17:24Z Abstract. Changes in the songs of humpback whales Megaptera novaeangliae in the Ryukyu and Bonin regions of Japan were examined, and songs from the two regions were compared. Eighty-four song sessions in the Ryukyu region, from 1991 to 1997, and eleven song sessions in the Bonin region, from 1992 to 1995, were analyzed. The mean number of theme types was 6.9 for the Ryukyu samples and 7.6 for the Bonin samples. Song similarities were higher within winter than between winters and similarity declined as the number of intervening years increased, indicating that in these regions songs change with time. Song similarities for consecutive years varied, suggesting that the rate of change varies annually. Songs in the same year were very similar in both the Ryukyu and Bonin samples, furthermore site-specific theme types were not found. These results suggest there may be acoustic contact between animals using the two regions, supporting a previous photographic study which indicated that humpback whales migrate between these two regions. Key words: acoustic contact, Megaptera novaeangliae, migration, song similarity. Humpback whales Megaptera novaeangliae migrate between high-latitude summer feeding regions and low-latitude wintering regions where calving and mating take place (Baker and Text Megaptera novaeangliae Unknown |
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English |
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Abstract. Changes in the songs of humpback whales Megaptera novaeangliae in the Ryukyu and Bonin regions of Japan were examined, and songs from the two regions were compared. Eighty-four song sessions in the Ryukyu region, from 1991 to 1997, and eleven song sessions in the Bonin region, from 1992 to 1995, were analyzed. The mean number of theme types was 6.9 for the Ryukyu samples and 7.6 for the Bonin samples. Song similarities were higher within winter than between winters and similarity declined as the number of intervening years increased, indicating that in these regions songs change with time. Song similarities for consecutive years varied, suggesting that the rate of change varies annually. Songs in the same year were very similar in both the Ryukyu and Bonin samples, furthermore site-specific theme types were not found. These results suggest there may be acoustic contact between animals using the two regions, supporting a previous photographic study which indicated that humpback whales migrate between these two regions. Key words: acoustic contact, Megaptera novaeangliae, migration, song similarity. Humpback whales Megaptera novaeangliae migrate between high-latitude summer feeding regions and low-latitude wintering regions where calving and mating take place (Baker and |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
In The Ryukyu Bonin Regions Hidemasa Maedal Naoto Higashp Senzou Uchida Fumihiko Sato Takashi Koido Akira Takemura |
spellingShingle |
In The Ryukyu Bonin Regions Hidemasa Maedal Naoto Higashp Senzou Uchida Fumihiko Sato Takashi Koido Akira Takemura © the Mammalogical Society of Japan Songs of humpback whales Megaptera novaeangliae |
author_facet |
In The Ryukyu Bonin Regions Hidemasa Maedal Naoto Higashp Senzou Uchida Fumihiko Sato Takashi Koido Akira Takemura |
author_sort |
In The Ryukyu |
title |
© the Mammalogical Society of Japan Songs of humpback whales Megaptera novaeangliae |
title_short |
© the Mammalogical Society of Japan Songs of humpback whales Megaptera novaeangliae |
title_full |
© the Mammalogical Society of Japan Songs of humpback whales Megaptera novaeangliae |
title_fullStr |
© the Mammalogical Society of Japan Songs of humpback whales Megaptera novaeangliae |
title_full_unstemmed |
© the Mammalogical Society of Japan Songs of humpback whales Megaptera novaeangliae |
title_sort |
© the mammalogical society of japan songs of humpback whales megaptera novaeangliae |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.524.4211 http://naosite.lb.nagasaki-u.ac.jp/dspace/bitstream/10069/20147/1/mamst25_1_59.pdf |
genre |
Megaptera novaeangliae |
genre_facet |
Megaptera novaeangliae |
op_source |
http://naosite.lb.nagasaki-u.ac.jp/dspace/bitstream/10069/20147/1/mamst25_1_59.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.524.4211 http://naosite.lb.nagasaki-u.ac.jp/dspace/bitstream/10069/20147/1/mamst25_1_59.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766067421676830720 |