Ecologia e comportamento da raposa-do-campo Pseudalopex vetulus e do cachorro-do-mato Cerdocyon thous em áreas de fazendas no bioma Cerrado
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFU |
Texto Completo: | https://repositorio.ufu.br/handle/123456789/13426 |
Resumo: | Studies focusing syntopic species help to understand how they partition resources and coexist. The objective of this work was to describe the social system, habitat use and diet of the hoary fox (Pseudalopex vetulus) and the crab-eating fox (Cerdocyon thous), in an area of cattle farms in Central Brazil. It is also reported a confrontation between the two species, observed during a study on the behavioral repertory of the hoary fox. Social system and habitat use were studied by direct observation of foxes in the field and diet, through scat analysis. Crab-eating foxes were found in pairs in 34 (59%) of 58 encounters and hoary foxes were solitary in 58 (84.0%) of 69 encounters, with no seasonal variation in the group size of both species. During one encounter of a crab-eating fox couple, the male vocalized to call the female that had remained behind. Hoary foxes were sighted in grazed pasture in a higher proportion (84%) than crab-eating foxes (67%) and they were never found in forest neither in swamp. Besides, both species were rarely seen together, and the only encounter registered ended in a conflict, with the crab-eating fox driving the hoary fox out. Twenty-seven taxa were identified in the diet of the two canids, with the crab-eating fox (n = 32 scats) consumed fruits, insects (mainly Orthoptera and Coleoptera) and vertebrates (most Cricetidae and Squamata) and the hoary fox (n = 23 scats) ate primarily termites (Isoptera). Results indicate that crab-eating fox couples keep more tight bonds than hoary fox couples. The coexistence of both species may be related to the detected differences in habitat use and diet. |
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Ecologia e comportamento da raposa-do-campo Pseudalopex vetulus e do cachorro-do-mato Cerdocyon thous em áreas de fazendas no bioma CerradoEcology and behavior of the hoary fox, Pseudalopex vetulus, and the crab-eating fox, Cerdocyon thous, in areas of farms in the Cerrado BiomeCanídeosCompetição interespecíficaEcologia alimentarTamanho de grupoUso do habitatEcologia animalCanidsFeeding ecologyGroup sizeHabitat useInterspecific competitionCNPQ::CIENCIAS BIOLOGICAS::ECOLOGIAStudies focusing syntopic species help to understand how they partition resources and coexist. The objective of this work was to describe the social system, habitat use and diet of the hoary fox (Pseudalopex vetulus) and the crab-eating fox (Cerdocyon thous), in an area of cattle farms in Central Brazil. It is also reported a confrontation between the two species, observed during a study on the behavioral repertory of the hoary fox. Social system and habitat use were studied by direct observation of foxes in the field and diet, through scat analysis. Crab-eating foxes were found in pairs in 34 (59%) of 58 encounters and hoary foxes were solitary in 58 (84.0%) of 69 encounters, with no seasonal variation in the group size of both species. During one encounter of a crab-eating fox couple, the male vocalized to call the female that had remained behind. Hoary foxes were sighted in grazed pasture in a higher proportion (84%) than crab-eating foxes (67%) and they were never found in forest neither in swamp. Besides, both species were rarely seen together, and the only encounter registered ended in a conflict, with the crab-eating fox driving the hoary fox out. Twenty-seven taxa were identified in the diet of the two canids, with the crab-eating fox (n = 32 scats) consumed fruits, insects (mainly Orthoptera and Coleoptera) and vertebrates (most Cricetidae and Squamata) and the hoary fox (n = 23 scats) ate primarily termites (Isoptera). Results indicate that crab-eating fox couples keep more tight bonds than hoary fox couples. The coexistence of both species may be related to the detected differences in habitat use and diet.Mestre em Ecologia e Conservação de Recursos NaturaisEstudos enfocando espécies sintópicas ajudam a entender como elas partilham os recursos e coexistem. O objetivo deste trabalho foi descrever o sistema social, o uso do habitat e a dieta da raposa-do-campo (Pseudalopex vetulus) e do cachorro-do-mato (Cerdocyon thous), em uma área de fazendas de gado no Brasil Central. Também é relatado um confronto entre as duas espécies observado durante um estudo sobre o repertório comportamental da raposa-do-campo. O sistema social e o uso de habitat foram estudados a partir da observação direta dos animais no campo e a dieta, através da análise de fezes. Os cachorros-do-mato foram encontrados em duplas em 34 (59%) de 58 encontros e as raposas-do-campo estavam solitárias em 58 (84%) de 69 encontros, não havendo variação sazonal no tamanho de grupo das duas espécies. Durante um dos encontros de uma dupla de cachorro-do-mato, o macho vocalizou para chamar a fêmea que havia ficado para trás. As raposas-do-campo foram avistadas em pastagens em uma proporção maior (84%) que os cachorros-do-mato (67%) e nunca foram encontradas em florestas ou brejos. Além disso, as duas espécies raramente foram vistas juntas, sendo que o único encontro registrado terminou em conflito, com o cachorro-do-mato expulsando a raposa-do-campo. Vinte e sete táxons foram identificados na dieta dos dois canídeos. O cachorro-do-mato (n = 32 fezes) consumiu frutos, insetos (principalmente Orthoptera e Coleoptera) e vertebrados (a maioria Cricetidae e Squamata) e a raposa-do-campo (n = 23 fezes) se alimentou principalmente de cupins (Isoptera). Os resultados indicam que casais de cachorros-do-mato mantêm laços mais estreitos que casais de raposa-do-campo. A coexistência de ambas as espécies pode estar relacionada às diferenças detectadas no uso do habitat e na dieta.Universidade Federal de UberlândiaBRPrograma de Pós-graduação em Ecologia e Conservação de Recursos NaturaisCiências BiológicasUFUGiaretta, Kátia Gomes Facurehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4701725U6Rodrigues, Flávio Henrique Guimarãeshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4784752P5Vasconcelos, Heraldo Luís dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788572E9Pinese, José Fernandohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4702875A0Lemos, Frederico Gemesio2016-06-22T18:35:00Z2008-12-182016-06-22T18:35:00Z2007-02-27info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/pdfLEMOS, Frederico Gemesio. Ecology and behavior of the hoary fox, Pseudalopex vetulus, and the crab-eating fox, Cerdocyon thous, in areas of farms in the Cerrado Biome. 2007. 72 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de Uberlândia, Uberlândia, 2007.https://repositorio.ufu.br/handle/123456789/13426porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFU2016-06-23T06:22:03Zoai:repositorio.ufu.br:123456789/13426Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2016-06-23T06:22:03Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Ecologia e comportamento da raposa-do-campo Pseudalopex vetulus e do cachorro-do-mato Cerdocyon thous em áreas de fazendas no bioma Cerrado Ecology and behavior of the hoary fox, Pseudalopex vetulus, and the crab-eating fox, Cerdocyon thous, in areas of farms in the Cerrado Biome |
title |
Ecologia e comportamento da raposa-do-campo Pseudalopex vetulus e do cachorro-do-mato Cerdocyon thous em áreas de fazendas no bioma Cerrado |
spellingShingle |
Ecologia e comportamento da raposa-do-campo Pseudalopex vetulus e do cachorro-do-mato Cerdocyon thous em áreas de fazendas no bioma Cerrado Lemos, Frederico Gemesio Canídeos Competição interespecífica Ecologia alimentar Tamanho de grupo Uso do habitat Ecologia animal Canids Feeding ecology Group size Habitat use Interspecific competition CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
title_short |
Ecologia e comportamento da raposa-do-campo Pseudalopex vetulus e do cachorro-do-mato Cerdocyon thous em áreas de fazendas no bioma Cerrado |
title_full |
Ecologia e comportamento da raposa-do-campo Pseudalopex vetulus e do cachorro-do-mato Cerdocyon thous em áreas de fazendas no bioma Cerrado |
title_fullStr |
Ecologia e comportamento da raposa-do-campo Pseudalopex vetulus e do cachorro-do-mato Cerdocyon thous em áreas de fazendas no bioma Cerrado |
title_full_unstemmed |
Ecologia e comportamento da raposa-do-campo Pseudalopex vetulus e do cachorro-do-mato Cerdocyon thous em áreas de fazendas no bioma Cerrado |
title_sort |
Ecologia e comportamento da raposa-do-campo Pseudalopex vetulus e do cachorro-do-mato Cerdocyon thous em áreas de fazendas no bioma Cerrado |
author |
Lemos, Frederico Gemesio |
author_facet |
Lemos, Frederico Gemesio |
author_role |
author |
dc.contributor.none.fl_str_mv |
Giaretta, Kátia Gomes Facure http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4701725U6 Rodrigues, Flávio Henrique Guimarães http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4784752P5 Vasconcelos, Heraldo Luís de http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788572E9 Pinese, José Fernando http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4702875A0 |
dc.contributor.author.fl_str_mv |
Lemos, Frederico Gemesio |
dc.subject.por.fl_str_mv |
Canídeos Competição interespecífica Ecologia alimentar Tamanho de grupo Uso do habitat Ecologia animal Canids Feeding ecology Group size Habitat use Interspecific competition CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
topic |
Canídeos Competição interespecífica Ecologia alimentar Tamanho de grupo Uso do habitat Ecologia animal Canids Feeding ecology Group size Habitat use Interspecific competition CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
description |
Studies focusing syntopic species help to understand how they partition resources and coexist. The objective of this work was to describe the social system, habitat use and diet of the hoary fox (Pseudalopex vetulus) and the crab-eating fox (Cerdocyon thous), in an area of cattle farms in Central Brazil. It is also reported a confrontation between the two species, observed during a study on the behavioral repertory of the hoary fox. Social system and habitat use were studied by direct observation of foxes in the field and diet, through scat analysis. Crab-eating foxes were found in pairs in 34 (59%) of 58 encounters and hoary foxes were solitary in 58 (84.0%) of 69 encounters, with no seasonal variation in the group size of both species. During one encounter of a crab-eating fox couple, the male vocalized to call the female that had remained behind. Hoary foxes were sighted in grazed pasture in a higher proportion (84%) than crab-eating foxes (67%) and they were never found in forest neither in swamp. Besides, both species were rarely seen together, and the only encounter registered ended in a conflict, with the crab-eating fox driving the hoary fox out. Twenty-seven taxa were identified in the diet of the two canids, with the crab-eating fox (n = 32 scats) consumed fruits, insects (mainly Orthoptera and Coleoptera) and vertebrates (most Cricetidae and Squamata) and the hoary fox (n = 23 scats) ate primarily termites (Isoptera). Results indicate that crab-eating fox couples keep more tight bonds than hoary fox couples. The coexistence of both species may be related to the detected differences in habitat use and diet. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-02-27 2008-12-18 2016-06-22T18:35:00Z 2016-06-22T18:35:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
LEMOS, Frederico Gemesio. Ecology and behavior of the hoary fox, Pseudalopex vetulus, and the crab-eating fox, Cerdocyon thous, in areas of farms in the Cerrado Biome. 2007. 72 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de Uberlândia, Uberlândia, 2007. https://repositorio.ufu.br/handle/123456789/13426 |
identifier_str_mv |
LEMOS, Frederico Gemesio. Ecology and behavior of the hoary fox, Pseudalopex vetulus, and the crab-eating fox, Cerdocyon thous, in areas of farms in the Cerrado Biome. 2007. 72 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de Uberlândia, Uberlândia, 2007. |
url |
https://repositorio.ufu.br/handle/123456789/13426 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia BR Programa de Pós-graduação em Ecologia e Conservação de Recursos Naturais Ciências Biológicas UFU |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia BR Programa de Pós-graduação em Ecologia e Conservação de Recursos Naturais Ciências Biológicas UFU |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFU instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Repositório Institucional da UFU |
collection |
Repositório Institucional da UFU |
repository.name.fl_str_mv |
Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
diinf@dirbi.ufu.br |
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1805569563474001920 |