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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
17/06/2015 |
Data da última atualização: |
10/05/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LEUCHTENBERGER, C.; MAGNUSSON, W. E.; MOURAO, G. |
Afiliação: |
CAROLINE LEUCHTENBERGER, INPA; WILLIAM E. MAGNUSSON, INPA; GUILHERME DE MIRANDA MOURAO, CPAP. |
Título: |
Territoriality of giant otter groups in an area with seasonal flooding. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Plos One, v.10, n.5, p.1-13, 2015. |
DOI: |
10.1371/journal.pone.0126073 |
Idioma: |
Inglês |
Conteúdo: |
Territoriality carries costs and benefits, which are commonly affected by the spatial and temporal abundance and predictability of food, and by intruder pressure. Giant otters (Pteronura brasiliensis) live in groups that defend territories along river channels during the dry season using chemical signals, loud vocalizations and agonistic encounters. However, little is known about the territoriality of giant otters during the rainy season, when groups leave their dry season territories and follow fish dispersing into flooded areas. The objective of this study was to analyze long-term territoriality of giant otter groups in a seasonal environment. The linear extensions of the territories of 10 giant otter groups were determined based on locations of active dens, latrines and scent marks in each season. Some groups overlapped the limits of neighboring territories. The total territory extent of giant otters was correlated with group size in both seasons. The extent of exclusive territories of giant otter groups was negatively related to the number of adults present in adjacent groups. Territory fidelity ranged from 0 to 100%between seasons. Some groupsmaintained their territory for long periods, which demanded constant effort in marking and re-establishing their territories during the wet season. These results indicate that the defense capacity of groups had an important role in the maintenance of giant otter territories across seasons, which may also affect the reproductive success of alpha pairs. MenosTerritoriality carries costs and benefits, which are commonly affected by the spatial and temporal abundance and predictability of food, and by intruder pressure. Giant otters (Pteronura brasiliensis) live in groups that defend territories along river channels during the dry season using chemical signals, loud vocalizations and agonistic encounters. However, little is known about the territoriality of giant otters during the rainy season, when groups leave their dry season territories and follow fish dispersing into flooded areas. The objective of this study was to analyze long-term territoriality of giant otter groups in a seasonal environment. The linear extensions of the territories of 10 giant otter groups were determined based on locations of active dens, latrines and scent marks in each season. Some groups overlapped the limits of neighboring territories. The total territory extent of giant otters was correlated with group size in both seasons. The extent of exclusive territories of giant otter groups was negatively related to the number of adults present in adjacent groups. Territory fidelity ranged from 0 to 100%between seasons. Some groupsmaintained their territory for long periods, which demanded constant effort in marking and re-establishing their territories during the wet season. These results indicate that the defense capacity of groups had an important role in the maintenance of giant otter territories across seasons, which may also affect the reproductive suc... Mostrar Tudo |
Palavras-Chave: |
Ariranhas; Inundação sazonal. |
Thesaurus Nal: |
Pteronura brasiliensis. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/125591/1/journal.pone.giant.otter.territory1.pdf
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Marc: |
LEADER 02064naa a2200193 a 4500 001 2017949 005 2018-05-10 008 2015 bl uuuu u00u1 u #d 024 7 $a10.1371/journal.pone.0126073$2DOI 100 1 $aLEUCHTENBERGER, C. 245 $aTerritoriality of giant otter groups in an area with seasonal flooding. 260 $c2015 520 $aTerritoriality carries costs and benefits, which are commonly affected by the spatial and temporal abundance and predictability of food, and by intruder pressure. Giant otters (Pteronura brasiliensis) live in groups that defend territories along river channels during the dry season using chemical signals, loud vocalizations and agonistic encounters. However, little is known about the territoriality of giant otters during the rainy season, when groups leave their dry season territories and follow fish dispersing into flooded areas. The objective of this study was to analyze long-term territoriality of giant otter groups in a seasonal environment. The linear extensions of the territories of 10 giant otter groups were determined based on locations of active dens, latrines and scent marks in each season. Some groups overlapped the limits of neighboring territories. The total territory extent of giant otters was correlated with group size in both seasons. The extent of exclusive territories of giant otter groups was negatively related to the number of adults present in adjacent groups. Territory fidelity ranged from 0 to 100%between seasons. Some groupsmaintained their territory for long periods, which demanded constant effort in marking and re-establishing their territories during the wet season. These results indicate that the defense capacity of groups had an important role in the maintenance of giant otter territories across seasons, which may also affect the reproductive success of alpha pairs. 650 $aPteronura brasiliensis 653 $aAriranhas 653 $aInundação sazonal 700 1 $aMAGNUSSON, W. E. 700 1 $aMOURAO, G. 773 $tPlos One$gv.10, n.5, p.1-13, 2015.
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Embrapa Pantanal (CPAP) |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
27/10/2014 |
Data da última atualização: |
27/10/2014 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
CORREA, E. B.; DUARTE, R. D.; MORAIS, S. L.; TRENTIN, G.; PEREZ, N. B.; SILVEIRA, M. C. T. da. |
Afiliação: |
EMANUELLE BARBOSA CORREA; RENATA DILL DUARTE; SILVANA LOPES MORAIS; GUSTAVO TRENTIN, CPPSUL; NAYLOR BASTIANI PEREZ, CPPSUL; MARCIA CRISTINA T DA SILVEIRA, CPPSUL. |
Título: |
Dinâmica de perfilhamento em capim annoni sob crescimento livre. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
In: JORNADA DE PÓS-GRADUAÇÃO E PESQUISA, 12.; MOSTRA DE INICIAÇÃO CIENTÍFICA, 12.; MOSTRA DE INICIAÇÃO CIENTÍFICA JÚNIOR, 10.; MOSTRA INTERNACIONAL DE FOTOGRAFIA, 2., 2014, Bagé. Anais... Bagé: Ediurcamp, 2014. |
Idioma: |
Português |
Notas: |
CONGREGA. |
Thesagro: |
Erva daninha. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/110650/1/DINAMICA-DE-PERFILHAMENTO.pdf
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Marc: |
LEADER 00705nam a2200181 a 4500 001 1998574 005 2014-10-27 008 2014 bl uuuu u00u1 u #d 100 1 $aCORREA, E. B. 245 $aDinâmica de perfilhamento em capim annoni sob crescimento livre.$h[electronic resource] 260 $aIn: JORNADA DE PÓS-GRADUAÇÃO E PESQUISA, 12.; MOSTRA DE INICIAÇÃO CIENTÍFICA, 12.; MOSTRA DE INICIAÇÃO CIENTÍFICA JÚNIOR, 10.; MOSTRA INTERNACIONAL DE FOTOGRAFIA, 2., 2014, Bagé. Anais... Bagé: Ediurcamp$c2014 500 $aCONGREGA. 650 $aErva daninha 700 1 $aDUARTE, R. D. 700 1 $aMORAIS, S. L. 700 1 $aTRENTIN, G. 700 1 $aPEREZ, N. B. 700 1 $aSILVEIRA, M. C. T. da
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