Diet and prey availability of terrestrial insectivorous birds prone to extinction in Amazonian forest fragments
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/16246 |
Resumo: | This study compared niche breath, prey size, and diet variability in two pairs of sympatric species of terrestrial insectivorous birds, each pair containing one species that can persist in small forest fragments and one that does not. The pairs were Myrmeciza ferruginea and Sclerurus rufigularis; and Formicarius colma and F. analis, respectively. The prey availability in forest fragments was also sampled and compared to the availability in continuous forests. Niche breath indices did not differ between pair members, but diet variability differed in the opposite direction from that hypothesized. Although the two bird species most vulnerable to fragmentation fed on larger prey than less vulnerable species, prey availability, including that based on prey size did not differ among fragmented versus continuous forest sites. Thus, diet per se appeared not to be an important cause of extinctionproneness in these species. The simplest explanation proposed, that vulnerability to fragmentation was directly related to territory size, requires testing. However, it was consistent with observations that the bird species feeding on larger prey also need larger territories. |
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Mestre, Luiz Augusto MacedoCohn-Haft, MarioDias, Manoel Martins2020-06-02T15:09:53Z2020-06-02T15:09:53Z2010https://repositorio.inpa.gov.br/handle/1/1624610.1590/S1516-89132010000600014This study compared niche breath, prey size, and diet variability in two pairs of sympatric species of terrestrial insectivorous birds, each pair containing one species that can persist in small forest fragments and one that does not. The pairs were Myrmeciza ferruginea and Sclerurus rufigularis; and Formicarius colma and F. analis, respectively. The prey availability in forest fragments was also sampled and compared to the availability in continuous forests. Niche breath indices did not differ between pair members, but diet variability differed in the opposite direction from that hypothesized. Although the two bird species most vulnerable to fragmentation fed on larger prey than less vulnerable species, prey availability, including that based on prey size did not differ among fragmented versus continuous forest sites. Thus, diet per se appeared not to be an important cause of extinctionproneness in these species. The simplest explanation proposed, that vulnerability to fragmentation was directly related to territory size, requires testing. However, it was consistent with observations that the bird species feeding on larger prey also need larger territories.Volume 53, Número 6, Pags. 1371-1381Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessAvesFormicarius AnalisFormicarius ColmaMyrmeciza FerrugineaSclerurus RufigularisDiet and prey availability of terrestrial insectivorous birds prone to extinction in Amazonian forest fragmentsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrazilian Archives of Biology and Technologyengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfartigo-inpa.pdfapplication/pdf266557https://repositorio.inpa.gov.br/bitstream/1/16246/1/artigo-inpa.pdf499bcaad13e2ae3ccc695f2d6c1b34c5MD511/162462020-06-02 11:48:12.896oai:repositorio:1/16246Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-06-02T15:48:12Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.en.fl_str_mv |
Diet and prey availability of terrestrial insectivorous birds prone to extinction in Amazonian forest fragments |
title |
Diet and prey availability of terrestrial insectivorous birds prone to extinction in Amazonian forest fragments |
spellingShingle |
Diet and prey availability of terrestrial insectivorous birds prone to extinction in Amazonian forest fragments Mestre, Luiz Augusto Macedo Aves Formicarius Analis Formicarius Colma Myrmeciza Ferruginea Sclerurus Rufigularis |
title_short |
Diet and prey availability of terrestrial insectivorous birds prone to extinction in Amazonian forest fragments |
title_full |
Diet and prey availability of terrestrial insectivorous birds prone to extinction in Amazonian forest fragments |
title_fullStr |
Diet and prey availability of terrestrial insectivorous birds prone to extinction in Amazonian forest fragments |
title_full_unstemmed |
Diet and prey availability of terrestrial insectivorous birds prone to extinction in Amazonian forest fragments |
title_sort |
Diet and prey availability of terrestrial insectivorous birds prone to extinction in Amazonian forest fragments |
author |
Mestre, Luiz Augusto Macedo |
author_facet |
Mestre, Luiz Augusto Macedo Cohn-Haft, Mario Dias, Manoel Martins |
author_role |
author |
author2 |
Cohn-Haft, Mario Dias, Manoel Martins |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Mestre, Luiz Augusto Macedo Cohn-Haft, Mario Dias, Manoel Martins |
dc.subject.eng.fl_str_mv |
Aves Formicarius Analis Formicarius Colma Myrmeciza Ferruginea Sclerurus Rufigularis |
topic |
Aves Formicarius Analis Formicarius Colma Myrmeciza Ferruginea Sclerurus Rufigularis |
description |
This study compared niche breath, prey size, and diet variability in two pairs of sympatric species of terrestrial insectivorous birds, each pair containing one species that can persist in small forest fragments and one that does not. The pairs were Myrmeciza ferruginea and Sclerurus rufigularis; and Formicarius colma and F. analis, respectively. The prey availability in forest fragments was also sampled and compared to the availability in continuous forests. Niche breath indices did not differ between pair members, but diet variability differed in the opposite direction from that hypothesized. Although the two bird species most vulnerable to fragmentation fed on larger prey than less vulnerable species, prey availability, including that based on prey size did not differ among fragmented versus continuous forest sites. Thus, diet per se appeared not to be an important cause of extinctionproneness in these species. The simplest explanation proposed, that vulnerability to fragmentation was directly related to territory size, requires testing. However, it was consistent with observations that the bird species feeding on larger prey also need larger territories. |
publishDate |
2010 |
dc.date.issued.fl_str_mv |
2010 |
dc.date.accessioned.fl_str_mv |
2020-06-02T15:09:53Z |
dc.date.available.fl_str_mv |
2020-06-02T15:09:53Z |
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/1/16246 |
dc.identifier.doi.none.fl_str_mv |
10.1590/S1516-89132010000600014 |
url |
https://repositorio.inpa.gov.br/handle/1/16246 |
identifier_str_mv |
10.1590/S1516-89132010000600014 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 53, Número 6, Pags. 1371-1381 |
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 |
Brazilian Archives of Biology and Technology |
publisher.none.fl_str_mv |
Brazilian Archives of Biology and Technology |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional do INPA instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
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Instituto Nacional de Pesquisas da Amazônia (INPA) |
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INPA |
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INPA |
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Repositório Institucional do INPA |
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Repositório Institucional do INPA |
bitstream.url.fl_str_mv |
https://repositorio.inpa.gov.br/bitstream/1/16246/1/artigo-inpa.pdf |
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499bcaad13e2ae3ccc695f2d6c1b34c5 |
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Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA) |
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1809928893233102849 |