Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/371 |
Resumo: | The aim of this study was to determine the diet of coypu (Myocastor coypus) in two areas (Santa Isabel do Sul wetlands – Area 1, and Santa Marta Farm – Area 2) in the Southern region of Brazil, using microhistological analyses of feces. Twenty-four plant species were identified from collected feces samples. Among the identified species, nine are common in the animals’ diet in both areas; the presence of Oriza sativa was not detected in any of the samples. Among the identified species, 84% and 54% of the coypu’s diet from Areas 1 and 2, respectively, are aquatic plants. Poaceae family was most common, being found in 82% of the samples from both areas. Paspalum disthichum (Area 1) and Panicum tricholaenoides (Area 2) were the most frequent species on the coypu’s diet. The diet comparison for both areas indicates that feeding habits vary depending on the type of habitat, environmental conditions and food availability. The absence of rice in our analysis may be an indication for the preservation of native areas around watercourses, so as to prevent coypu from invading irrigated crops. |
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Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of BrazilCoypuDietFood selectionHerbivoreRatão-do-banhadoDietaSeleção de alimentoHerbivoriaThe aim of this study was to determine the diet of coypu (Myocastor coypus) in two areas (Santa Isabel do Sul wetlands – Area 1, and Santa Marta Farm – Area 2) in the Southern region of Brazil, using microhistological analyses of feces. Twenty-four plant species were identified from collected feces samples. Among the identified species, nine are common in the animals’ diet in both areas; the presence of Oriza sativa was not detected in any of the samples. Among the identified species, 84% and 54% of the coypu’s diet from Areas 1 and 2, respectively, are aquatic plants. Poaceae family was most common, being found in 82% of the samples from both areas. Paspalum disthichum (Area 1) and Panicum tricholaenoides (Area 2) were the most frequent species on the coypu’s diet. The diet comparison for both areas indicates that feeding habits vary depending on the type of habitat, environmental conditions and food availability. The absence of rice in our analysis may be an indication for the preservation of native areas around watercourses, so as to prevent coypu from invading irrigated crops.O objetivo deste estudo foi determinar a dieta do ratão-dobanhado (Myocastor coypus), em duas regiões (áreas alagadas em Santa Isabel do Sul – área 1 e Fazenda Santa Marta – área 2), na região sul do Brasil, utilizando microhistological análises de fezes. Foram identificadas 24 espécies de plantas nas amostras de fezes coletadas. Entre as espécies identificadas, nove são comuns a dieta dos animais de ambas as áreas, não sendo detectada a presença de Oriza sativa em nenhuma das amostras. Entre as espécies identificadas, 84% e 54% da dieta do ratão-do-banhado, nas áreas 1 e 2 respectivamente, são plantas aquáticas. A família Poaceae foi a mais abundante, sendo encontrada em 82% das amostras de ambas as áreas. Paspalum disthichum (área 1) e Panicum tricholaenoides (área 2), foram as espécies mais frequentes na dieta do ratão-do-banhado. A comparação da dieta de ambas as áreas mostrou que a alimentação varia dependendo do tipo de habitat, condições ambientais e de disponibilidade alimentar. A ausência de arroz na nossa análise pode ser um indicativo de que a preservação de áreas nativas ao redor de cursos d’água, evita que o ratão-do-banhado utilize as culturas de arroz.2011-01-12T19:52:50Z2011-01-12T19:52:50Z2010info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfCOLARES, I. C. et al. Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 82, n. 3, p. 671-678, 2010. Disponível em: <http://www.scielo.br/pdf/aabc/v82n3/15.pdf >. Acesso em: 12 jan. 2011.0001-3765http://repositorio.furg.br/handle/1/371engColares, Ioni GonçalvesOliveira, Raquel Nunes Vidart deOliveira, Rafael M.Colares, Elton Pintoinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2011-09-13T17:06:33Zoai:repositorio.furg.br:1/371Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2011-09-13T17:06:33Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil |
title |
Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil |
spellingShingle |
Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil Colares, Ioni Gonçalves Coypu Diet Food selection Herbivore Ratão-do-banhado Dieta Seleção de alimento Herbivoria |
title_short |
Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil |
title_full |
Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil |
title_fullStr |
Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil |
title_full_unstemmed |
Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil |
title_sort |
Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil |
author |
Colares, Ioni Gonçalves |
author_facet |
Colares, Ioni Gonçalves Oliveira, Raquel Nunes Vidart de Oliveira, Rafael M. Colares, Elton Pinto |
author_role |
author |
author2 |
Oliveira, Raquel Nunes Vidart de Oliveira, Rafael M. Colares, Elton Pinto |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Colares, Ioni Gonçalves Oliveira, Raquel Nunes Vidart de Oliveira, Rafael M. Colares, Elton Pinto |
dc.subject.por.fl_str_mv |
Coypu Diet Food selection Herbivore Ratão-do-banhado Dieta Seleção de alimento Herbivoria |
topic |
Coypu Diet Food selection Herbivore Ratão-do-banhado Dieta Seleção de alimento Herbivoria |
description |
The aim of this study was to determine the diet of coypu (Myocastor coypus) in two areas (Santa Isabel do Sul wetlands – Area 1, and Santa Marta Farm – Area 2) in the Southern region of Brazil, using microhistological analyses of feces. Twenty-four plant species were identified from collected feces samples. Among the identified species, nine are common in the animals’ diet in both areas; the presence of Oriza sativa was not detected in any of the samples. Among the identified species, 84% and 54% of the coypu’s diet from Areas 1 and 2, respectively, are aquatic plants. Poaceae family was most common, being found in 82% of the samples from both areas. Paspalum disthichum (Area 1) and Panicum tricholaenoides (Area 2) were the most frequent species on the coypu’s diet. The diet comparison for both areas indicates that feeding habits vary depending on the type of habitat, environmental conditions and food availability. The absence of rice in our analysis may be an indication for the preservation of native areas around watercourses, so as to prevent coypu from invading irrigated crops. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010 2011-01-12T19:52:50Z 2011-01-12T19:52:50Z |
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 |
COLARES, I. C. et al. Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 82, n. 3, p. 671-678, 2010. Disponível em: <http://www.scielo.br/pdf/aabc/v82n3/15.pdf >. Acesso em: 12 jan. 2011. 0001-3765 http://repositorio.furg.br/handle/1/371 |
identifier_str_mv |
COLARES, I. C. et al. Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 82, n. 3, p. 671-678, 2010. Disponível em: <http://www.scielo.br/pdf/aabc/v82n3/15.pdf >. Acesso em: 12 jan. 2011. 0001-3765 |
url |
http://repositorio.furg.br/handle/1/371 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
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FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
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