Staff View: Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil

Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil

Behavior of humpback whales was observed during the reproductive period off the northern coast of the state of Bahia (NB, n = 378 groups) and at the Abrolhos Bank (AB, n = 919) to compare patterns and group composition between the two locations. Alone individuals and dyads were most often encountere...

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Main Authors:	Lunardi, Diana G., Engel, Márcia H., Macedo, Regina H. F.
Format:	Artigo
Language:	English
Published:	Sociedade Brasileira de Zoologia 2017
Subjects:	Abrolhos Bank Bahia Bayesian networks Occidental South Atlantic reproductive season Atlântico Sul Ocidental Banco dos Abrolhos estação reprodutiva Rede Bayesiana
Online Access:	http://repositorio.unb.br/handle/10482/27222
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id	ir-10482-27222
recordtype	dspace
spelling	ir-10482-272222019-03-28T14:09:07Z Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil Comportamento de baleias jubarte, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparação entre duas áreas de concentração na costa do Brasil Lunardi, Diana G. Engel, Márcia H. Macedo, Regina H. F. Abrolhos Bank Bahia Bayesian networks Occidental South Atlantic reproductive season Atlântico Sul Ocidental Bahia Banco dos Abrolhos estação reprodutiva Rede Bayesiana Behavior of humpback whales was observed during the reproductive period off the northern coast of the state of Bahia (NB, n = 378 groups) and at the Abrolhos Bank (AB, n = 919) to compare patterns and group composition between the two locations. Alone individuals and dyads were most often encountered in both areas, although mother-calf pairs were more common in AB. While these two regions comprise distinct concentrations of humpback whales, with intrinsic environmental differences, behavior patterns were quite similar. The only behavioral differences found where for "tail up" and "resting". The patterns found here may reflect differences in the protection status of the areas or intrinsic environmental differences. Eventos e estados comportamentais de baleias jubarte durante a temporada reprodutiva foram observados no Litoral Norte da Bahia (LNB) e no Banco dos Abrolhos (BA), para identificar possíveis diferenças nos padrões comportamentais específicos a determinadas composições de grupo. Foram analisados 378 grupos de baleias jubarte no LNB e 919 no BA. Obteve-se uma predominância de duplas e animais solitários em ambas as áreas. No entanto, grupos de "fêmea e filhote" foram mais comumente observados no BA, quando comparados ao LNB. Apesar das duas áreas serem distintas quanto à concentração de baleias jubarte, com diferenças ambientais intrínsecas, obtiveram-se probabilidades de ocorrência das condutas bastante similares para ambas as áreas. Diferenças significativas na probabilidade de ocorrência foram obtidas apenas para as condutas "exposição da caudal" e "repouso". As diferenças obtidas neste estudo, comparando-se as duas regiões amostradas, possivelmente refletem diferenças no status de proteção da área e/ou características ambientais intrínsecas a cada área. 2017-12-07T04:49:31Z 2017-12-07T04:49:31Z 2008 Artigo Rev. Bras. Zool.,v.25,n.2,p.159-164,2008 0101-8175 http://repositorio.unb.br/handle/10482/27222 10.1590/S0101-81752008000200001 en Acesso Aberto application/pdf Sociedade Brasileira de Zoologia http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200001&lng=en&nrm=iso http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0101-81752008000200001&lng=en&nrm=iso http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0101-81752008000200001&lng=en&nrm=iso
institution	REPOSITORIO UNB
collection	REPOSITORIO UNB
language	English
topic	Abrolhos Bank Bahia Bayesian networks Occidental South Atlantic reproductive season Atlântico Sul Ocidental Bahia Banco dos Abrolhos estação reprodutiva Rede Bayesiana
spellingShingle	Abrolhos Bank Bahia Bayesian networks Occidental South Atlantic reproductive season Atlântico Sul Ocidental Bahia Banco dos Abrolhos estação reprodutiva Rede Bayesiana Lunardi, Diana G. Engel, Márcia H. Macedo, Regina H. F. Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil
description	Behavior of humpback whales was observed during the reproductive period off the northern coast of the state of Bahia (NB, n = 378 groups) and at the Abrolhos Bank (AB, n = 919) to compare patterns and group composition between the two locations. Alone individuals and dyads were most often encountered in both areas, although mother-calf pairs were more common in AB. While these two regions comprise distinct concentrations of humpback whales, with intrinsic environmental differences, behavior patterns were quite similar. The only behavioral differences found where for "tail up" and "resting". The patterns found here may reflect differences in the protection status of the areas or intrinsic environmental differences.
format	Artigo
author	Lunardi, Diana G. Engel, Márcia H. Macedo, Regina H. F.
author_sort	Lunardi, Diana G.
title	Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil
title_short	Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil
title_full	Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil
title_fullStr	Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil
title_full_unstemmed	Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil
title_sort	behavior of humpback whales, megaptera novaeangliae (cetacea: balaenopteridae): comparisons between two coastal areas of brazil
publisher	Sociedade Brasileira de Zoologia
publishDate	2017
url	http://repositorio.unb.br/handle/10482/27222
_version_	1641988631915659264
score	13.657419

Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil

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