Seasonal variation in the fate of seeds under contrasting logging regimes
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1371/journal.pone.0090060 http://hdl.handle.net/11449/111275 |
Resumo: | Seed predators and dispersers may drive the speed and structure of forest regeneration in natural ecosystems. Rodents and ants prey upon and disperse seeds, yet empirical studies on the magnitude of these effects are lacking. Here, we examined the role of ants and rodents on seed predation in 4 plant species in a successional gradient on a tropical rainforest island. We found that (1) seeds are mostly consumed rather than dispersed; (2) rates of seed predation vary by habitat, season, and species; (3) seed size, shape, and hardness do not affect the probability of being depredated. Rodents were responsible for 70% of seed predation and were negligible (0.14%) seed dispersers, whereas ants were responsible for only 2% of seed predation and for no dispersal. We detected seasonal and habitat effects on seed loss, with higher seed predation occurring during the wet season and in old-growth forests. In the absence of predators regulating seed-consumer populations, the densities of these resilient animals explode to the detriment of natural regeneration and may reduce diversity and carrying capacity for consumers and eventually lead to ecological meltdown. |
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Repositório Institucional da UNESP |
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Seasonal variation in the fate of seeds under contrasting logging regimesSeed predators and dispersers may drive the speed and structure of forest regeneration in natural ecosystems. Rodents and ants prey upon and disperse seeds, yet empirical studies on the magnitude of these effects are lacking. Here, we examined the role of ants and rodents on seed predation in 4 plant species in a successional gradient on a tropical rainforest island. We found that (1) seeds are mostly consumed rather than dispersed; (2) rates of seed predation vary by habitat, season, and species; (3) seed size, shape, and hardness do not affect the probability of being depredated. Rodents were responsible for 70% of seed predation and were negligible (0.14%) seed dispersers, whereas ants were responsible for only 2% of seed predation and for no dispersal. We detected seasonal and habitat effects on seed loss, with higher seed predation occurring during the wet season and in old-growth forests. In the absence of predators regulating seed-consumer populations, the densities of these resilient animals explode to the detriment of natural regeneration and may reduce diversity and carrying capacity for consumers and eventually lead to ecological meltdown.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista, Dept Ecol, Sao Paulo, BrazilUniv Sao Paulo, USP ESALQ, Dept Ciencias Biol, Lab Ecol & Restauracao Florestal, Sao Paulo, BrazilUSP ESALQ, Dept Ciencias Florestais, Lab Metodos Quantitat, Sao Paulo, BrazilUniv Estadual Paulista, Dept Ecol, Sao Paulo, BrazilFAPESP: 2004/13230-5FAPESP: 2005/55093-7Public Library ScienceUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Fleury, Marina [UNESP]Rodrigues, Ricardo R.Couto, Hilton T. Z. doGaletti, Mauro [UNESP]2014-12-03T13:07:08Z2014-12-03T13:07:08Z2014-03-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8application/pdfhttp://dx.doi.org/10.1371/journal.pone.0090060Plos One. San Francisco: Public Library Science, v. 9, n. 3, 8 p., 2014.1932-6203http://hdl.handle.net/11449/11127510.1371/journal.pone.0090060WOS:000332839300016WOS000332839300016.pdf3431375174670630Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPLOS ONE2.7661,164info:eu-repo/semantics/openAccess2023-10-16T06:05:45Zoai:repositorio.unesp.br:11449/111275Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:05:47.287577Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Seasonal variation in the fate of seeds under contrasting logging regimes |
title |
Seasonal variation in the fate of seeds under contrasting logging regimes |
spellingShingle |
Seasonal variation in the fate of seeds under contrasting logging regimes Fleury, Marina [UNESP] |
title_short |
Seasonal variation in the fate of seeds under contrasting logging regimes |
title_full |
Seasonal variation in the fate of seeds under contrasting logging regimes |
title_fullStr |
Seasonal variation in the fate of seeds under contrasting logging regimes |
title_full_unstemmed |
Seasonal variation in the fate of seeds under contrasting logging regimes |
title_sort |
Seasonal variation in the fate of seeds under contrasting logging regimes |
author |
Fleury, Marina [UNESP] |
author_facet |
Fleury, Marina [UNESP] Rodrigues, Ricardo R. Couto, Hilton T. Z. do Galetti, Mauro [UNESP] |
author_role |
author |
author2 |
Rodrigues, Ricardo R. Couto, Hilton T. Z. do Galetti, Mauro [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Fleury, Marina [UNESP] Rodrigues, Ricardo R. Couto, Hilton T. Z. do Galetti, Mauro [UNESP] |
description |
Seed predators and dispersers may drive the speed and structure of forest regeneration in natural ecosystems. Rodents and ants prey upon and disperse seeds, yet empirical studies on the magnitude of these effects are lacking. Here, we examined the role of ants and rodents on seed predation in 4 plant species in a successional gradient on a tropical rainforest island. We found that (1) seeds are mostly consumed rather than dispersed; (2) rates of seed predation vary by habitat, season, and species; (3) seed size, shape, and hardness do not affect the probability of being depredated. Rodents were responsible for 70% of seed predation and were negligible (0.14%) seed dispersers, whereas ants were responsible for only 2% of seed predation and for no dispersal. We detected seasonal and habitat effects on seed loss, with higher seed predation occurring during the wet season and in old-growth forests. In the absence of predators regulating seed-consumer populations, the densities of these resilient animals explode to the detriment of natural regeneration and may reduce diversity and carrying capacity for consumers and eventually lead to ecological meltdown. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-03T13:07:08Z 2014-12-03T13:07:08Z 2014-03-10 |
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://dx.doi.org/10.1371/journal.pone.0090060 Plos One. San Francisco: Public Library Science, v. 9, n. 3, 8 p., 2014. 1932-6203 http://hdl.handle.net/11449/111275 10.1371/journal.pone.0090060 WOS:000332839300016 WOS000332839300016.pdf 3431375174670630 |
url |
http://dx.doi.org/10.1371/journal.pone.0090060 http://hdl.handle.net/11449/111275 |
identifier_str_mv |
Plos One. San Francisco: Public Library Science, v. 9, n. 3, 8 p., 2014. 1932-6203 10.1371/journal.pone.0090060 WOS:000332839300016 WOS000332839300016.pdf 3431375174670630 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
PLOS ONE 2.766 1,164 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
8 application/pdf |
dc.publisher.none.fl_str_mv |
Public Library Science |
publisher.none.fl_str_mv |
Public Library Science |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1808128459369611264 |