Extant fruit-eating birds promote genetically diverse seed rain, but disperse to fewer sites in defaunated tropical forests
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1111/1365-2745.13534 http://hdl.handle.net/11449/205554 |
Resumo: | The world-wide decline in populations of large-bodied vertebrates due to deforestation and poaching threatens the persistence of animal-dispersed plants by reducing long-distance seed dispersal and generating aggregated seed rain patterns. We evaluated whether the composition of maternal trees contributing to the seed rain is also impacted by the loss of large frugivores. By combining molecular tools with a thorough sampling of the frugivore-generated seed rain we quantified the number of seeds, richness of maternal progenies and number of maternal effective alleles in the seed rain of a tropical palm Euterpe edulis across ten Atlantic Forest remnants with varying levels of avian defaunation and density of palm conspecifics. Forest structure in defaunated areas was characterized by higher canopy openness. Defaunation did not affect the number of seeds dispersed or of effective alleles, but, together with palm density, was associated with higher numbers of maternal genotypes in the seed rain. This result suggests that medium-sized birds may play an important role in mixing maternal genotypes where large-sized frugivores have been extirpated. Defaunation, however, impacted the spatial distribution of seeds, with deposition sites in avian depauperated forests less likely to receive at least one seed. Synthesis. Our study suggests that medium-sized frugivores contribute to maintaining the quantitative component of seed dispersal and local genetic diversity of a threatened tropical palm in human degraded forests and, therefore, may be important for guaranteeing the persistence of remnant animal-dispersed plant populations under scenarios of rapid environmental change. The loss of large-bodied frugivores, however, can disrupt longer dispersal events and strengthen the dispersal spatial limitation, with consequences for plant spatial distribution and fine-scale genetic structure at the population level. |
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Extant fruit-eating birds promote genetically diverse seed rain, but disperse to fewer sites in defaunated tropical forestsallele diversityanthropogenic defaunationAtlantic forestEuterpe edulisfrugivorymaternal progenymicrohabitatthrushesThe world-wide decline in populations of large-bodied vertebrates due to deforestation and poaching threatens the persistence of animal-dispersed plants by reducing long-distance seed dispersal and generating aggregated seed rain patterns. We evaluated whether the composition of maternal trees contributing to the seed rain is also impacted by the loss of large frugivores. By combining molecular tools with a thorough sampling of the frugivore-generated seed rain we quantified the number of seeds, richness of maternal progenies and number of maternal effective alleles in the seed rain of a tropical palm Euterpe edulis across ten Atlantic Forest remnants with varying levels of avian defaunation and density of palm conspecifics. Forest structure in defaunated areas was characterized by higher canopy openness. Defaunation did not affect the number of seeds dispersed or of effective alleles, but, together with palm density, was associated with higher numbers of maternal genotypes in the seed rain. This result suggests that medium-sized birds may play an important role in mixing maternal genotypes where large-sized frugivores have been extirpated. Defaunation, however, impacted the spatial distribution of seeds, with deposition sites in avian depauperated forests less likely to receive at least one seed. Synthesis. Our study suggests that medium-sized frugivores contribute to maintaining the quantitative component of seed dispersal and local genetic diversity of a threatened tropical palm in human degraded forests and, therefore, may be important for guaranteeing the persistence of remnant animal-dispersed plant populations under scenarios of rapid environmental change. The loss of large-bodied frugivores, however, can disrupt longer dispersal events and strengthen the dispersal spatial limitation, with consequences for plant spatial distribution and fine-scale genetic structure at the population level.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação para a Ciência e a TecnologiaSão Paulo State University (UNESP) Institute of BiosciencesDepartamento de Genética e Evolução Universidade Federal de São Carlos (UFSCar)Centro de Investigação em Biodiversidade e Recursos Genéticos CIBIO/InBIO Universidade do PortoDepartment of Evolution Ecology and Behaviour Institute of Integrative Biology University of LiverpoolIntegrative Ecology Group Estación Biológica de Doñana Consejo Superior de Investigaciones Científicas (EBD-CSIC)São Paulo State University (UNESP) Institute of BiosciencesFAPESP: 2014/01029-5FAPESP: 2016/22843-8FAPESP: 2019/03005-0FAPESP: 2019/26436-6CNPq: 445353/2014-7Fundação para a Ciência e a Tecnologia: IF/01375/2012Universidade Estadual Paulista (Unesp)Universidade Federal de São Carlos (UFSCar)Universidade do PortoUniversity of LiverpoolConsejo Superior de Investigaciones Científicas (EBD-CSIC)Carvalho, Carolina da Silva [UNESP]García, CristinaLucas, Marília Souza [UNESP]Jordano, PedroCôrtes, Marina Corrêa [UNESP]2021-06-25T10:17:18Z2021-06-25T10:17:18Z2021-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1055-1067http://dx.doi.org/10.1111/1365-2745.13534Journal of Ecology, v. 109, n. 2, p. 1055-1067, 2021.1365-27450022-0477http://hdl.handle.net/11449/20555410.1111/1365-2745.135342-s2.0-85096978238Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Ecologyinfo:eu-repo/semantics/openAccess2021-10-23T14:48:25Zoai:repositorio.unesp.br:11449/205554Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:11:51.704564Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Extant fruit-eating birds promote genetically diverse seed rain, but disperse to fewer sites in defaunated tropical forests |
title |
Extant fruit-eating birds promote genetically diverse seed rain, but disperse to fewer sites in defaunated tropical forests |
spellingShingle |
Extant fruit-eating birds promote genetically diverse seed rain, but disperse to fewer sites in defaunated tropical forests Carvalho, Carolina da Silva [UNESP] allele diversity anthropogenic defaunation Atlantic forest Euterpe edulis frugivory maternal progeny microhabitat thrushes |
title_short |
Extant fruit-eating birds promote genetically diverse seed rain, but disperse to fewer sites in defaunated tropical forests |
title_full |
Extant fruit-eating birds promote genetically diverse seed rain, but disperse to fewer sites in defaunated tropical forests |
title_fullStr |
Extant fruit-eating birds promote genetically diverse seed rain, but disperse to fewer sites in defaunated tropical forests |
title_full_unstemmed |
Extant fruit-eating birds promote genetically diverse seed rain, but disperse to fewer sites in defaunated tropical forests |
title_sort |
Extant fruit-eating birds promote genetically diverse seed rain, but disperse to fewer sites in defaunated tropical forests |
author |
Carvalho, Carolina da Silva [UNESP] |
author_facet |
Carvalho, Carolina da Silva [UNESP] García, Cristina Lucas, Marília Souza [UNESP] Jordano, Pedro Côrtes, Marina Corrêa [UNESP] |
author_role |
author |
author2 |
García, Cristina Lucas, Marília Souza [UNESP] Jordano, Pedro Côrtes, Marina Corrêa [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de São Carlos (UFSCar) Universidade do Porto University of Liverpool Consejo Superior de Investigaciones Científicas (EBD-CSIC) |
dc.contributor.author.fl_str_mv |
Carvalho, Carolina da Silva [UNESP] García, Cristina Lucas, Marília Souza [UNESP] Jordano, Pedro Côrtes, Marina Corrêa [UNESP] |
dc.subject.por.fl_str_mv |
allele diversity anthropogenic defaunation Atlantic forest Euterpe edulis frugivory maternal progeny microhabitat thrushes |
topic |
allele diversity anthropogenic defaunation Atlantic forest Euterpe edulis frugivory maternal progeny microhabitat thrushes |
description |
The world-wide decline in populations of large-bodied vertebrates due to deforestation and poaching threatens the persistence of animal-dispersed plants by reducing long-distance seed dispersal and generating aggregated seed rain patterns. We evaluated whether the composition of maternal trees contributing to the seed rain is also impacted by the loss of large frugivores. By combining molecular tools with a thorough sampling of the frugivore-generated seed rain we quantified the number of seeds, richness of maternal progenies and number of maternal effective alleles in the seed rain of a tropical palm Euterpe edulis across ten Atlantic Forest remnants with varying levels of avian defaunation and density of palm conspecifics. Forest structure in defaunated areas was characterized by higher canopy openness. Defaunation did not affect the number of seeds dispersed or of effective alleles, but, together with palm density, was associated with higher numbers of maternal genotypes in the seed rain. This result suggests that medium-sized birds may play an important role in mixing maternal genotypes where large-sized frugivores have been extirpated. Defaunation, however, impacted the spatial distribution of seeds, with deposition sites in avian depauperated forests less likely to receive at least one seed. Synthesis. Our study suggests that medium-sized frugivores contribute to maintaining the quantitative component of seed dispersal and local genetic diversity of a threatened tropical palm in human degraded forests and, therefore, may be important for guaranteeing the persistence of remnant animal-dispersed plant populations under scenarios of rapid environmental change. The loss of large-bodied frugivores, however, can disrupt longer dispersal events and strengthen the dispersal spatial limitation, with consequences for plant spatial distribution and fine-scale genetic structure at the population level. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:17:18Z 2021-06-25T10:17:18Z 2021-02-01 |
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/10.1111/1365-2745.13534 Journal of Ecology, v. 109, n. 2, p. 1055-1067, 2021. 1365-2745 0022-0477 http://hdl.handle.net/11449/205554 10.1111/1365-2745.13534 2-s2.0-85096978238 |
url |
http://dx.doi.org/10.1111/1365-2745.13534 http://hdl.handle.net/11449/205554 |
identifier_str_mv |
Journal of Ecology, v. 109, n. 2, p. 1055-1067, 2021. 1365-2745 0022-0477 10.1111/1365-2745.13534 2-s2.0-85096978238 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Ecology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1055-1067 |
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 |
|
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1808129403609153536 |