Behavioural strategies in humpback whales, Megaptera novaeangliae , in a coastal region of Brazil
The behavioural patterns of humpback whales are known to vary according to the social function of individuals in a group. To identify behavioural patterns related to specific group compositions, we observed events and behavioural states of humpback whales during research cruises in the Abrolhos Bank...
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Cambridge University Press (CUP)
2010
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Online Access: | http://dx.doi.org/10.1017/s0025315410000421 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315410000421 |
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crcambridgeupr:10.1017/s0025315410000421 2024-03-03T08:46:26+00:00 Behavioural strategies in humpback whales, Megaptera novaeangliae , in a coastal region of Brazil Lunardi, Diana G. Engel, Márcia H. Marciano, João L.P. Macedo, Regina H. 2010 http://dx.doi.org/10.1017/s0025315410000421 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315410000421 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 90, issue 8, page 1693-1699 ISSN 0025-3154 1469-7769 Aquatic Science journal-article 2010 crcambridgeupr https://doi.org/10.1017/s0025315410000421 2024-02-08T08:39:48Z The behavioural patterns of humpback whales are known to vary according to the social function of individuals in a group. To identify behavioural patterns related to specific group compositions, we observed events and behavioural states of humpback whales during research cruises in the Abrolhos Bank, Brazil, in the reproductive seasons from 1992 to 2003. We monitored 3022 groups and found a predominance of competitive groups without calves, when compared to competitive groups with calves. A Bayesian network analysis supplied occurrence probabilities for the behaviours analysed, indicating higher probabilities of occurrence for the behavioural patterns designated travelling and socializing. The model, generated from a binomial logistic regression, was able to predict competitive groups in association with the occurrence of the following aggressive behaviours: head-lunging, trumpet and bubblestreams. This study suggests the existence of behavioural patterns associated with specific group compositions and reinforces the concept that there is a clear-cut relation between competitive groups and the occurrence of aggressive behaviours. The preferential association of males to females with high reproductive potential for the following year (i.e. females without a calf) was also identified. Article in Journal/Newspaper Megaptera novaeangliae Cambridge University Press Journal of the Marine Biological Association of the United Kingdom 90 8 1693 1699 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Aquatic Science |
spellingShingle |
Aquatic Science Lunardi, Diana G. Engel, Márcia H. Marciano, João L.P. Macedo, Regina H. Behavioural strategies in humpback whales, Megaptera novaeangliae , in a coastal region of Brazil |
topic_facet |
Aquatic Science |
description |
The behavioural patterns of humpback whales are known to vary according to the social function of individuals in a group. To identify behavioural patterns related to specific group compositions, we observed events and behavioural states of humpback whales during research cruises in the Abrolhos Bank, Brazil, in the reproductive seasons from 1992 to 2003. We monitored 3022 groups and found a predominance of competitive groups without calves, when compared to competitive groups with calves. A Bayesian network analysis supplied occurrence probabilities for the behaviours analysed, indicating higher probabilities of occurrence for the behavioural patterns designated travelling and socializing. The model, generated from a binomial logistic regression, was able to predict competitive groups in association with the occurrence of the following aggressive behaviours: head-lunging, trumpet and bubblestreams. This study suggests the existence of behavioural patterns associated with specific group compositions and reinforces the concept that there is a clear-cut relation between competitive groups and the occurrence of aggressive behaviours. The preferential association of males to females with high reproductive potential for the following year (i.e. females without a calf) was also identified. |
format |
Article in Journal/Newspaper |
author |
Lunardi, Diana G. Engel, Márcia H. Marciano, João L.P. Macedo, Regina H. |
author_facet |
Lunardi, Diana G. Engel, Márcia H. Marciano, João L.P. Macedo, Regina H. |
author_sort |
Lunardi, Diana G. |
title |
Behavioural strategies in humpback whales, Megaptera novaeangliae , in a coastal region of Brazil |
title_short |
Behavioural strategies in humpback whales, Megaptera novaeangliae , in a coastal region of Brazil |
title_full |
Behavioural strategies in humpback whales, Megaptera novaeangliae , in a coastal region of Brazil |
title_fullStr |
Behavioural strategies in humpback whales, Megaptera novaeangliae , in a coastal region of Brazil |
title_full_unstemmed |
Behavioural strategies in humpback whales, Megaptera novaeangliae , in a coastal region of Brazil |
title_sort |
behavioural strategies in humpback whales, megaptera novaeangliae , in a coastal region of brazil |
publisher |
Cambridge University Press (CUP) |
publishDate |
2010 |
url |
http://dx.doi.org/10.1017/s0025315410000421 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315410000421 |
genre |
Megaptera novaeangliae |
genre_facet |
Megaptera novaeangliae |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 90, issue 8, page 1693-1699 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315410000421 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
90 |
container_issue |
8 |
container_start_page |
1693 |
op_container_end_page |
1699 |
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1792502461288677376 |