Space use by giant otter groups in the Brazilian Pantanal

Detalhes bibliográficos
Autor(a) principal: Leuchtenberger, Caroline
Data de Publicação: 2013
Outros Autores: Oliveira-Santos, Luiz Gustavo Rodrigues, Magnusson, William Ernest, Mourão, Guilherme
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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spelling 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
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instname_str Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron_str INPA
institution INPA
reponame_str Repositório Institucional do INPA
collection Repositório Institucional do INPA
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