Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in Southeastern Brazil

Detalhes bibliográficos
Autor(a) principal: Deus,C. P.
Data de Publicação: 2003
Outros Autores: Petrere-Junior,M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000400005
Resumo: We analyzed the stomach contents of 116 individuals belonging to seven fishes species in order to investigate seasonal changes in feeding strategy and how trophic interactions between species affect community structure in an Atlantic rainforest stream in Southeastern Brazil. Oligosarcus hepsetus and Pimelodus sp. consumed fewer items during the winter. Phalloceros caudimaculatus switched feeding habits from detritus during summer to algae during winter. These examples are related to variations in food availability and species feeding selectivity. The highest diet overlap values, for most species, as measured using Schoener's index, were observed in summer, along with a species tendency to be more generalist. Feeding pattern variation may influence the fish community structure.
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spelling Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in Southeastern BrazilAtlantic rainforestdiet overlapfeeding variabilityspecialistgeneralistWe analyzed the stomach contents of 116 individuals belonging to seven fishes species in order to investigate seasonal changes in feeding strategy and how trophic interactions between species affect community structure in an Atlantic rainforest stream in Southeastern Brazil. Oligosarcus hepsetus and Pimelodus sp. consumed fewer items during the winter. Phalloceros caudimaculatus switched feeding habits from detritus during summer to algae during winter. These examples are related to variations in food availability and species feeding selectivity. The highest diet overlap values, for most species, as measured using Schoener's index, were observed in summer, along with a species tendency to be more generalist. Feeding pattern variation may influence the fish community structure.Instituto Internacional de Ecologia2003-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000400005Brazilian Journal of Biology v.63 n.4 2003reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/S1519-69842003000400005info:eu-repo/semantics/openAccessDeus,C. P.Petrere-Junior,M.eng2004-03-15T00:00:00Zoai:scielo:S1519-69842003000400005Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2004-03-15T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false
dc.title.none.fl_str_mv Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in Southeastern Brazil
title Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in Southeastern Brazil
spellingShingle Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in Southeastern Brazil
Deus,C. P.
Atlantic rainforest
diet overlap
feeding variability
specialist
generalist
title_short Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in Southeastern Brazil
title_full Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in Southeastern Brazil
title_fullStr Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in Southeastern Brazil
title_full_unstemmed Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in Southeastern Brazil
title_sort Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in Southeastern Brazil
author Deus,C. P.
author_facet Deus,C. P.
Petrere-Junior,M.
author_role author
author2 Petrere-Junior,M.
author2_role author
dc.contributor.author.fl_str_mv Deus,C. P.
Petrere-Junior,M.
dc.subject.por.fl_str_mv Atlantic rainforest
diet overlap
feeding variability
specialist
generalist
topic Atlantic rainforest
diet overlap
feeding variability
specialist
generalist
description We analyzed the stomach contents of 116 individuals belonging to seven fishes species in order to investigate seasonal changes in feeding strategy and how trophic interactions between species affect community structure in an Atlantic rainforest stream in Southeastern Brazil. Oligosarcus hepsetus and Pimelodus sp. consumed fewer items during the winter. Phalloceros caudimaculatus switched feeding habits from detritus during summer to algae during winter. These examples are related to variations in food availability and species feeding selectivity. The highest diet overlap values, for most species, as measured using Schoener's index, were observed in summer, along with a species tendency to be more generalist. Feeding pattern variation may influence the fish community structure.
publishDate 2003
dc.date.none.fl_str_mv 2003-11-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000400005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000400005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1519-69842003000400005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto Internacional de Ecologia
publisher.none.fl_str_mv Instituto Internacional de Ecologia
dc.source.none.fl_str_mv Brazilian Journal of Biology v.63 n.4 2003
reponame:Brazilian Journal of Biology
instname:Instituto Internacional de Ecologia (IIE)
instacron:IIE
instname_str Instituto Internacional de Ecologia (IIE)
instacron_str IIE
institution IIE
reponame_str Brazilian Journal of Biology
collection Brazilian Journal of Biology
repository.name.fl_str_mv Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)
repository.mail.fl_str_mv bjb@bjb.com.br||bjb@bjb.com.br
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