Space use by giant otter groups in the Brazilian Pantanal
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/16069 |
Resumo: | Giant otters (Pteronura brasiliensis) live in groups that seem to abandon their territories during the flooding season. We studied the spatial ecology of giant otter groups during dry and wet seasons in the Vermelho and Miranda rivers in the Brazilian Pantanal. We monitored visually or by radiotelemetry 10 giant otter groups monthly from June 2009 to June 2011.We estimated home-range size for all groups with the following methods: linear river length, considering the extreme locations of each group, and fixed kernel. For the radiotracked groups, we also used the k-LoCoh method. Spatial fidelity and habitat selection of giant otter groups were analyzed seasonally. On the basis of k-LoCoh (98%) method, home-range sizes during the wet season (3.6-7.9 km2) were 4 to 59 times larger than during the dry season (0.1-2.3 km2). Home-range fidelity between seasons varied among giant otter groups from 0% to 87%, and 2 radiotagged groups shifted to flooded areas during the wet seasons. Giant otter groups were selective in relation to the composition of the landscape available during the dry seasons, when the river was used more intensively than other landscape features. However, they seemed to be less selective in positioning activity ranges during the wet season. During this season, giant otters were frequently observed fishing in the areas adjacent to the river, such as flooded forest, grassland, and swamps. © 2013 American Society of Mammalogists. |
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Leuchtenberger, CarolineOliveira-Santos, Luiz Gustavo RodriguesMagnusson, William ErnestMourão, Guilherme2020-05-22T21:12:16Z2020-05-22T21:12:16Z2013https://repositorio.inpa.gov.br/handle/1/1606910.1644/12-MAMM-A-210.1Giant otters (Pteronura brasiliensis) live in groups that seem to abandon their territories during the flooding season. We studied the spatial ecology of giant otter groups during dry and wet seasons in the Vermelho and Miranda rivers in the Brazilian Pantanal. We monitored visually or by radiotelemetry 10 giant otter groups monthly from June 2009 to June 2011.We estimated home-range size for all groups with the following methods: linear river length, considering the extreme locations of each group, and fixed kernel. For the radiotracked groups, we also used the k-LoCoh method. Spatial fidelity and habitat selection of giant otter groups were analyzed seasonally. On the basis of k-LoCoh (98%) method, home-range sizes during the wet season (3.6-7.9 km2) were 4 to 59 times larger than during the dry season (0.1-2.3 km2). Home-range fidelity between seasons varied among giant otter groups from 0% to 87%, and 2 radiotagged groups shifted to flooded areas during the wet seasons. Giant otter groups were selective in relation to the composition of the landscape available during the dry seasons, when the river was used more intensively than other landscape features. However, they seemed to be less selective in positioning activity ranges during the wet season. During this season, giant otters were frequently observed fishing in the areas adjacent to the river, such as flooded forest, grassland, and swamps. © 2013 American Society of Mammalogists.Volume 94, Número 2, Pags. 320-330Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessFloodingHome RangeMustelidRadio TelemetrySite FidelitySpace UseBrasilPantanalPteronura BrasiliensisSpace use by giant otter groups in the Brazilian Pantanalinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleJournal of Mammalogyengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfartigo-inpa.pdfapplication/pdf351713https://repositorio.inpa.gov.br/bitstream/1/16069/1/artigo-inpa.pdf51a0e1cb8faa1689dd30625a441f9d00MD511/160692020-05-22 17:37:09.854oai:repositorio:1/16069Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-05-22T21:37:09Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.en.fl_str_mv |
Space use by giant otter groups in the Brazilian Pantanal |
title |
Space use by giant otter groups in the Brazilian Pantanal |
spellingShingle |
Space use by giant otter groups in the Brazilian Pantanal Leuchtenberger, Caroline Flooding Home Range Mustelid Radio Telemetry Site Fidelity Space Use Brasil Pantanal Pteronura Brasiliensis |
title_short |
Space use by giant otter groups in the Brazilian Pantanal |
title_full |
Space use by giant otter groups in the Brazilian Pantanal |
title_fullStr |
Space use by giant otter groups in the Brazilian Pantanal |
title_full_unstemmed |
Space use by giant otter groups in the Brazilian Pantanal |
title_sort |
Space use by giant otter groups in the Brazilian Pantanal |
author |
Leuchtenberger, Caroline |
author_facet |
Leuchtenberger, Caroline Oliveira-Santos, Luiz Gustavo Rodrigues Magnusson, William Ernest Mourão, Guilherme |
author_role |
author |
author2 |
Oliveira-Santos, Luiz Gustavo Rodrigues Magnusson, William Ernest Mourão, Guilherme |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Leuchtenberger, Caroline Oliveira-Santos, Luiz Gustavo Rodrigues Magnusson, William Ernest Mourão, Guilherme |
dc.subject.eng.fl_str_mv |
Flooding Home Range Mustelid Radio Telemetry Site Fidelity Space Use Brasil Pantanal Pteronura Brasiliensis |
topic |
Flooding Home Range Mustelid Radio Telemetry Site Fidelity Space Use Brasil Pantanal Pteronura Brasiliensis |
description |
Giant otters (Pteronura brasiliensis) live in groups that seem to abandon their territories during the flooding season. We studied the spatial ecology of giant otter groups during dry and wet seasons in the Vermelho and Miranda rivers in the Brazilian Pantanal. We monitored visually or by radiotelemetry 10 giant otter groups monthly from June 2009 to June 2011.We estimated home-range size for all groups with the following methods: linear river length, considering the extreme locations of each group, and fixed kernel. For the radiotracked groups, we also used the k-LoCoh method. Spatial fidelity and habitat selection of giant otter groups were analyzed seasonally. On the basis of k-LoCoh (98%) method, home-range sizes during the wet season (3.6-7.9 km2) were 4 to 59 times larger than during the dry season (0.1-2.3 km2). Home-range fidelity between seasons varied among giant otter groups from 0% to 87%, and 2 radiotagged groups shifted to flooded areas during the wet seasons. Giant otter groups were selective in relation to the composition of the landscape available during the dry seasons, when the river was used more intensively than other landscape features. However, they seemed to be less selective in positioning activity ranges during the wet season. During this season, giant otters were frequently observed fishing in the areas adjacent to the river, such as flooded forest, grassland, and swamps. © 2013 American Society of Mammalogists. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013 |
dc.date.accessioned.fl_str_mv |
2020-05-22T21:12:16Z |
dc.date.available.fl_str_mv |
2020-05-22T21:12:16Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://repositorio.inpa.gov.br/handle/1/16069 |
dc.identifier.doi.none.fl_str_mv |
10.1644/12-MAMM-A-210.1 |
url |
https://repositorio.inpa.gov.br/handle/1/16069 |
identifier_str_mv |
10.1644/12-MAMM-A-210.1 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 94, Número 2, Pags. 320-330 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Journal of Mammalogy |
publisher.none.fl_str_mv |
Journal of Mammalogy |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional do INPA instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
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Instituto Nacional de Pesquisas da Amazônia (INPA) |
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INPA |
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INPA |
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Repositório Institucional do INPA |
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Repositório Institucional do INPA |
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https://repositorio.inpa.gov.br/bitstream/1/16069/1/artigo-inpa.pdf |
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Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA) |
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