Impacto humano afeta negativamente a dispersão de sementes de frutos ornitocóricos: Uma perspectiva global
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.ararajuba.org.br/sbo/ararajuba/artigos/Volume152/volume152.htm http://hdl.handle.net/11449/69698 |
Resumo: | Ornithochorous fruits make up an important part of the diet of birds and many studies have related the different morphological types of fruits with the choice by birds. We analyzed the intrinsic characteristics of plants and how human impact can affect this choice. Through analyses of covariance we related the degree of human pressure in each study site (high or low) and the morphological characteristics of 57 ornithochorous species with visiting rates and consumption of fruits by birds. We did not find any intrinsic plant characteristic (life form, size and type of diaspore) that explains the rates of consumption and visit by birds. On the other hand, the degree of human impact affected directly the mutualism between plants and birds. Plant species located in areas that suffer high human pressure had number of visits and consumption rates 3,3 and 3,5 lower than plants located in pristine areas, respectively. The negative consequences of the reduction of consumption of fruits in areas with high human pressures may directly affects the interactions between birds and plants and the regeneration of the ornithochorous species. |
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Impacto humano afeta negativamente a dispersão de sementes de frutos ornitocóricos: Uma perspectiva globalHuman impact affects negatively the seed dispersal in ornithochorous fruits: A global perspectiveExtinctionFragmentationFrugivoryFruit choiceMorphology of fruitOrnithochoryanthropogenic effectbirdextinctionflower visitingfrugivoryfruithabitat fragmentationmorphologymutualismpristine environmentseed dispersalAvesOrnithochorous fruits make up an important part of the diet of birds and many studies have related the different morphological types of fruits with the choice by birds. We analyzed the intrinsic characteristics of plants and how human impact can affect this choice. Through analyses of covariance we related the degree of human pressure in each study site (high or low) and the morphological characteristics of 57 ornithochorous species with visiting rates and consumption of fruits by birds. We did not find any intrinsic plant characteristic (life form, size and type of diaspore) that explains the rates of consumption and visit by birds. On the other hand, the degree of human impact affected directly the mutualism between plants and birds. Plant species located in areas that suffer high human pressure had number of visits and consumption rates 3,3 and 3,5 lower than plants located in pristine areas, respectively. The negative consequences of the reduction of consumption of fruits in areas with high human pressures may directly affects the interactions between birds and plants and the regeneration of the ornithochorous species.Grupo de Fenologia e Dispersão de Sementes Laboratório de Biologia da Conservação Universidade Estadual Paulista (UNESP), C. P. 199, CEP 13506-900, Rio Claro, SPGrupo de Fenologia e Dispersão de Sementes Laboratório de Biologia da Conservação Universidade Estadual Paulista (UNESP), C. P. 199, CEP 13506-900, Rio Claro, SPUniversidade Estadual Paulista (Unesp)Staggemeier, Vanessa Graziele [UNESP]Galetti, Mauro [UNESP]2014-05-27T11:22:29Z2014-05-27T11:22:29Z2007-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article281-287application/pdfhttp://www.ararajuba.org.br/sbo/ararajuba/artigos/Volume152/volume152.htmRevista Brasileira de Ornitologia, v. 15, n. 2, p. 281-287, 2007.0103-5657http://hdl.handle.net/11449/69698WOS:0002585760000132-s2.0-518491095782-s2.0-51849109578.pdf3431375174670630Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Ornitologia0.5650,329info:eu-repo/semantics/openAccess2023-12-15T06:16:02Zoai:repositorio.unesp.br:11449/69698Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:22:50.610130Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Impacto humano afeta negativamente a dispersão de sementes de frutos ornitocóricos: Uma perspectiva global Human impact affects negatively the seed dispersal in ornithochorous fruits: A global perspective |
title |
Impacto humano afeta negativamente a dispersão de sementes de frutos ornitocóricos: Uma perspectiva global |
spellingShingle |
Impacto humano afeta negativamente a dispersão de sementes de frutos ornitocóricos: Uma perspectiva global Staggemeier, Vanessa Graziele [UNESP] Extinction Fragmentation Frugivory Fruit choice Morphology of fruit Ornithochory anthropogenic effect bird extinction flower visiting frugivory fruit habitat fragmentation morphology mutualism pristine environment seed dispersal Aves |
title_short |
Impacto humano afeta negativamente a dispersão de sementes de frutos ornitocóricos: Uma perspectiva global |
title_full |
Impacto humano afeta negativamente a dispersão de sementes de frutos ornitocóricos: Uma perspectiva global |
title_fullStr |
Impacto humano afeta negativamente a dispersão de sementes de frutos ornitocóricos: Uma perspectiva global |
title_full_unstemmed |
Impacto humano afeta negativamente a dispersão de sementes de frutos ornitocóricos: Uma perspectiva global |
title_sort |
Impacto humano afeta negativamente a dispersão de sementes de frutos ornitocóricos: Uma perspectiva global |
author |
Staggemeier, Vanessa Graziele [UNESP] |
author_facet |
Staggemeier, Vanessa Graziele [UNESP] Galetti, Mauro [UNESP] |
author_role |
author |
author2 |
Galetti, Mauro [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Staggemeier, Vanessa Graziele [UNESP] Galetti, Mauro [UNESP] |
dc.subject.por.fl_str_mv |
Extinction Fragmentation Frugivory Fruit choice Morphology of fruit Ornithochory anthropogenic effect bird extinction flower visiting frugivory fruit habitat fragmentation morphology mutualism pristine environment seed dispersal Aves |
topic |
Extinction Fragmentation Frugivory Fruit choice Morphology of fruit Ornithochory anthropogenic effect bird extinction flower visiting frugivory fruit habitat fragmentation morphology mutualism pristine environment seed dispersal Aves |
description |
Ornithochorous fruits make up an important part of the diet of birds and many studies have related the different morphological types of fruits with the choice by birds. We analyzed the intrinsic characteristics of plants and how human impact can affect this choice. Through analyses of covariance we related the degree of human pressure in each study site (high or low) and the morphological characteristics of 57 ornithochorous species with visiting rates and consumption of fruits by birds. We did not find any intrinsic plant characteristic (life form, size and type of diaspore) that explains the rates of consumption and visit by birds. On the other hand, the degree of human impact affected directly the mutualism between plants and birds. Plant species located in areas that suffer high human pressure had number of visits and consumption rates 3,3 and 3,5 lower than plants located in pristine areas, respectively. The negative consequences of the reduction of consumption of fruits in areas with high human pressures may directly affects the interactions between birds and plants and the regeneration of the ornithochorous species. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-06-01 2014-05-27T11:22:29Z 2014-05-27T11:22:29Z |
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 |
http://www.ararajuba.org.br/sbo/ararajuba/artigos/Volume152/volume152.htm Revista Brasileira de Ornitologia, v. 15, n. 2, p. 281-287, 2007. 0103-5657 http://hdl.handle.net/11449/69698 WOS:000258576000013 2-s2.0-51849109578 2-s2.0-51849109578.pdf 3431375174670630 |
url |
http://www.ararajuba.org.br/sbo/ararajuba/artigos/Volume152/volume152.htm http://hdl.handle.net/11449/69698 |
identifier_str_mv |
Revista Brasileira de Ornitologia, v. 15, n. 2, p. 281-287, 2007. 0103-5657 WOS:000258576000013 2-s2.0-51849109578 2-s2.0-51849109578.pdf 3431375174670630 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira de Ornitologia 0.565 0,329 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
281-287 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129195423825920 |