Composition of mixed-species bird flocks in forest fragments of southern Brazil

Detalhes bibliográficos
Autor(a) principal: Brandt, Cláudia Sabrine
Data de Publicação: 2009
Outros Autores: Hasenack, Heinrich, Laps, Rudi R., Hartz, Sandra Maria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/107601
Resumo: The present study aimed to evaluate the composition of mixed-species bird flocks in a fragmented landscape of the Atlantic Forest in southern Brazil. We recorded 117 species in 218 mixed-species flocks. The correspondence analysis showed two distinct groups of fragments according to degree of connectivity with other fragments. The percentage of original cover surrounding a sampled fragment area up to a ratio of 2.5 and 1 km was the variable that presented highest correlation with the formation of different composition of mixed-species bird flocks, followed by altitude. Based on these results, we concluded that, in landscapes with low levels of fragmentation, the composition of mixed flocks reflects the local species pool. Thus, future studies comparing composition of mixed-specie flocks should concentrate their efforts in areas where some of these variables remain constant, as for example where fragments are at similar altitudes.
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spelling Brandt, Cláudia SabrineHasenack, HeinrichLaps, Rudi R.Hartz, Sandra Maria2014-11-29T02:21:11Z20091984-4670http://hdl.handle.net/10183/107601000722668The present study aimed to evaluate the composition of mixed-species bird flocks in a fragmented landscape of the Atlantic Forest in southern Brazil. We recorded 117 species in 218 mixed-species flocks. The correspondence analysis showed two distinct groups of fragments according to degree of connectivity with other fragments. The percentage of original cover surrounding a sampled fragment area up to a ratio of 2.5 and 1 km was the variable that presented highest correlation with the formation of different composition of mixed-species bird flocks, followed by altitude. Based on these results, we concluded that, in landscapes with low levels of fragmentation, the composition of mixed flocks reflects the local species pool. Thus, future studies comparing composition of mixed-specie flocks should concentrate their efforts in areas where some of these variables remain constant, as for example where fragments are at similar altitudes.application/pdfengZoologia. Curitiba. Vol. 26, n. 3 (Sept. 2009), p. 488-498AvifaunaItajaí, Rio, Bacia (SC)Atlantic forestBird communityEcological interactionsFragmentationMixed-species flocksComposition of mixed-species bird flocks in forest fragments of southern Brazilinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000722668.pdf000722668.pdfTexto completo (inglês)application/pdf190913http://www.lume.ufrgs.br/bitstream/10183/107601/1/000722668.pdf6ad451ccc4d263951241ae9ce74123a1MD51TEXT000722668.pdf.txt000722668.pdf.txtExtracted Texttext/plain41255http://www.lume.ufrgs.br/bitstream/10183/107601/2/000722668.pdf.txt950f8415d342d4355a6f8dab230f691eMD52THUMBNAIL000722668.pdf.jpg000722668.pdf.jpgGenerated Thumbnailimage/jpeg1941http://www.lume.ufrgs.br/bitstream/10183/107601/3/000722668.pdf.jpgb13dff6b9d4cd5104c703615e1bb6308MD5310183/1076012019-10-26 03:50:19.475255oai:www.lume.ufrgs.br:10183/107601Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2019-10-26T06:50:19Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Composition of mixed-species bird flocks in forest fragments of southern Brazil
title Composition of mixed-species bird flocks in forest fragments of southern Brazil
spellingShingle Composition of mixed-species bird flocks in forest fragments of southern Brazil
Brandt, Cláudia Sabrine
Avifauna
Itajaí, Rio, Bacia (SC)
Atlantic forest
Bird community
Ecological interactions
Fragmentation
Mixed-species flocks
title_short Composition of mixed-species bird flocks in forest fragments of southern Brazil
title_full Composition of mixed-species bird flocks in forest fragments of southern Brazil
title_fullStr Composition of mixed-species bird flocks in forest fragments of southern Brazil
title_full_unstemmed Composition of mixed-species bird flocks in forest fragments of southern Brazil
title_sort Composition of mixed-species bird flocks in forest fragments of southern Brazil
author Brandt, Cláudia Sabrine
author_facet Brandt, Cláudia Sabrine
Hasenack, Heinrich
Laps, Rudi R.
Hartz, Sandra Maria
author_role author
author2 Hasenack, Heinrich
Laps, Rudi R.
Hartz, Sandra Maria
author2_role author
author
author
dc.contributor.author.fl_str_mv Brandt, Cláudia Sabrine
Hasenack, Heinrich
Laps, Rudi R.
Hartz, Sandra Maria
dc.subject.por.fl_str_mv Avifauna
Itajaí, Rio, Bacia (SC)
topic Avifauna
Itajaí, Rio, Bacia (SC)
Atlantic forest
Bird community
Ecological interactions
Fragmentation
Mixed-species flocks
dc.subject.eng.fl_str_mv Atlantic forest
Bird community
Ecological interactions
Fragmentation
Mixed-species flocks
description The present study aimed to evaluate the composition of mixed-species bird flocks in a fragmented landscape of the Atlantic Forest in southern Brazil. We recorded 117 species in 218 mixed-species flocks. The correspondence analysis showed two distinct groups of fragments according to degree of connectivity with other fragments. The percentage of original cover surrounding a sampled fragment area up to a ratio of 2.5 and 1 km was the variable that presented highest correlation with the formation of different composition of mixed-species bird flocks, followed by altitude. Based on these results, we concluded that, in landscapes with low levels of fragmentation, the composition of mixed flocks reflects the local species pool. Thus, future studies comparing composition of mixed-specie flocks should concentrate their efforts in areas where some of these variables remain constant, as for example where fragments are at similar altitudes.
publishDate 2009
dc.date.issued.fl_str_mv 2009
dc.date.accessioned.fl_str_mv 2014-11-29T02:21:11Z
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dc.identifier.issn.pt_BR.fl_str_mv 1984-4670
dc.identifier.nrb.pt_BR.fl_str_mv 000722668
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dc.relation.ispartof.pt_BR.fl_str_mv Zoologia. Curitiba. Vol. 26, n. 3 (Sept. 2009), p. 488-498
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