Matrix dominance and landscape resistance affect genetic variability and differentiation of an Atlantic Forest pioneer tree
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10980-022-01498-6 http://hdl.handle.net/11449/240655 |
Resumo: | Context: Despite the importance of secondary forests for the maintenance of biodiversity, the impact of pioneer trees on habitat loss and fragmentation is poorly understood. Objectives: We analyzed the effects of landscape structure on genetic variability (node level analyses) and genetic differentiation (link level analyses) of the pioneer tree Cecropia hololeuca in the Atlantic Forest of southeastern Brazil. At the node level, we analyzed the effects of landscape structure (forest and pasture amount, compositional heterogeneity, number and shape of patches, and matrix dominance), topography (slope and elevation), and effective population size (Ne) on allelic richness (AR), genetic diversity (He) and inbreeding coefficient (f). At the link level, we analyzed the effect of four resistance surfaces (isolation by geographic distance, land cover, elevation, and slope) on genetic differentiation between populations (FST, G’ST, Jost’s D). Methods: We genotyped 257 individuals of C. hololeuca using eight microsatellite loci. At the node level, we calculated landscape and topographic variables at six spatial scales. At the link level, we optimized the resistance surfaces using ResistanceGA. We used a model selection approach to select the most parsimonious models. Results: At the node level, matrices dominated by pastures had higher AR than landscapes dominated by Eucalyptus at the 1500 m spatial scale. At the link level, FST was best explained by slope, with lower values imposing more resistance. All resistance surfaces explained G’ST. Conclusions: In addition to conserving and restoring habitats, management practices that improve matrix permeability should be adopted to favor the movement of dispersers, consequently improving natural regeneration, increasing allelic richness, and decreasing genetic differentiation of natural populations. |
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Repositório Institucional da UNESP |
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Matrix dominance and landscape resistance affect genetic variability and differentiation of an Atlantic Forest pioneer treeCecropiaConnectivityLandscape geneticsPastureSecondary forestTropical forestContext: Despite the importance of secondary forests for the maintenance of biodiversity, the impact of pioneer trees on habitat loss and fragmentation is poorly understood. Objectives: We analyzed the effects of landscape structure on genetic variability (node level analyses) and genetic differentiation (link level analyses) of the pioneer tree Cecropia hololeuca in the Atlantic Forest of southeastern Brazil. At the node level, we analyzed the effects of landscape structure (forest and pasture amount, compositional heterogeneity, number and shape of patches, and matrix dominance), topography (slope and elevation), and effective population size (Ne) on allelic richness (AR), genetic diversity (He) and inbreeding coefficient (f). At the link level, we analyzed the effect of four resistance surfaces (isolation by geographic distance, land cover, elevation, and slope) on genetic differentiation between populations (FST, G’ST, Jost’s D). Methods: We genotyped 257 individuals of C. hololeuca using eight microsatellite loci. At the node level, we calculated landscape and topographic variables at six spatial scales. At the link level, we optimized the resistance surfaces using ResistanceGA. We used a model selection approach to select the most parsimonious models. Results: At the node level, matrices dominated by pastures had higher AR than landscapes dominated by Eucalyptus at the 1500 m spatial scale. At the link level, FST was best explained by slope, with lower values imposing more resistance. All resistance surfaces explained G’ST. Conclusions: In addition to conserving and restoring habitats, management practices that improve matrix permeability should be adopted to favor the movement of dispersers, consequently improving natural regeneration, increasing allelic richness, and decreasing genetic differentiation of natural populations.Spatial Ecology and Conservation Lab (LEEC) Department of Biodiversity São Paulo State University UNESP, Avenida 24 A, 1515, SPDepartamento de Biodiversidade e Conservação Instituto Federal Goiano Campus Rio Verde, Cx.P. 66, GoiásDepartment of Biodiversity São Paulo State University UNESP, Avenida 24 A, 1515, SPEnvironmental Studies Center São Paulo State University UNESP Avenida 24 A 1515, SPLaboratório de Genética & Biodiversidade Instituto de Ciências Biológicas Universidade Federal de Goiás, GoiásSpatial Ecology and Conservation Lab (LEEC) Department of Biodiversity São Paulo State University UNESP, Avenida 24 A, 1515, SPDepartment of Biodiversity São Paulo State University UNESP, Avenida 24 A, 1515, SPEnvironmental Studies Center São Paulo State University UNESP Avenida 24 A 1515, SPUniversidade Estadual Paulista (UNESP)Instituto Federal Goiano Campus Rio VerdeUniversidade Federal de Goiás (UFG)Santos, Juliana Silveira dos [UNESP]Vitorino, Luciana CristinaGonçalves, Renata Fabrega [UNESP]Côrtes, Marina Corrêa [UNESP]Alves, Rafael Souza Cruz [UNESP]Ribeiro, Milton Cezar [UNESP]Collevatti, Rosane Garcia2023-03-01T20:27:04Z2023-03-01T20:27:04Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s10980-022-01498-6Landscape Ecology.1572-97610921-2973http://hdl.handle.net/11449/24065510.1007/s10980-022-01498-62-s2.0-85136013498Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLandscape Ecologyinfo:eu-repo/semantics/openAccess2023-03-01T20:27:04Zoai:repositorio.unesp.br:11449/240655Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-03-01T20:27:04Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Matrix dominance and landscape resistance affect genetic variability and differentiation of an Atlantic Forest pioneer tree |
title |
Matrix dominance and landscape resistance affect genetic variability and differentiation of an Atlantic Forest pioneer tree |
spellingShingle |
Matrix dominance and landscape resistance affect genetic variability and differentiation of an Atlantic Forest pioneer tree Santos, Juliana Silveira dos [UNESP] Cecropia Connectivity Landscape genetics Pasture Secondary forest Tropical forest |
title_short |
Matrix dominance and landscape resistance affect genetic variability and differentiation of an Atlantic Forest pioneer tree |
title_full |
Matrix dominance and landscape resistance affect genetic variability and differentiation of an Atlantic Forest pioneer tree |
title_fullStr |
Matrix dominance and landscape resistance affect genetic variability and differentiation of an Atlantic Forest pioneer tree |
title_full_unstemmed |
Matrix dominance and landscape resistance affect genetic variability and differentiation of an Atlantic Forest pioneer tree |
title_sort |
Matrix dominance and landscape resistance affect genetic variability and differentiation of an Atlantic Forest pioneer tree |
author |
Santos, Juliana Silveira dos [UNESP] |
author_facet |
Santos, Juliana Silveira dos [UNESP] Vitorino, Luciana Cristina Gonçalves, Renata Fabrega [UNESP] Côrtes, Marina Corrêa [UNESP] Alves, Rafael Souza Cruz [UNESP] Ribeiro, Milton Cezar [UNESP] Collevatti, Rosane Garcia |
author_role |
author |
author2 |
Vitorino, Luciana Cristina Gonçalves, Renata Fabrega [UNESP] Côrtes, Marina Corrêa [UNESP] Alves, Rafael Souza Cruz [UNESP] Ribeiro, Milton Cezar [UNESP] Collevatti, Rosane Garcia |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Instituto Federal Goiano Campus Rio Verde Universidade Federal de Goiás (UFG) |
dc.contributor.author.fl_str_mv |
Santos, Juliana Silveira dos [UNESP] Vitorino, Luciana Cristina Gonçalves, Renata Fabrega [UNESP] Côrtes, Marina Corrêa [UNESP] Alves, Rafael Souza Cruz [UNESP] Ribeiro, Milton Cezar [UNESP] Collevatti, Rosane Garcia |
dc.subject.por.fl_str_mv |
Cecropia Connectivity Landscape genetics Pasture Secondary forest Tropical forest |
topic |
Cecropia Connectivity Landscape genetics Pasture Secondary forest Tropical forest |
description |
Context: Despite the importance of secondary forests for the maintenance of biodiversity, the impact of pioneer trees on habitat loss and fragmentation is poorly understood. Objectives: We analyzed the effects of landscape structure on genetic variability (node level analyses) and genetic differentiation (link level analyses) of the pioneer tree Cecropia hololeuca in the Atlantic Forest of southeastern Brazil. At the node level, we analyzed the effects of landscape structure (forest and pasture amount, compositional heterogeneity, number and shape of patches, and matrix dominance), topography (slope and elevation), and effective population size (Ne) on allelic richness (AR), genetic diversity (He) and inbreeding coefficient (f). At the link level, we analyzed the effect of four resistance surfaces (isolation by geographic distance, land cover, elevation, and slope) on genetic differentiation between populations (FST, G’ST, Jost’s D). Methods: We genotyped 257 individuals of C. hololeuca using eight microsatellite loci. At the node level, we calculated landscape and topographic variables at six spatial scales. At the link level, we optimized the resistance surfaces using ResistanceGA. We used a model selection approach to select the most parsimonious models. Results: At the node level, matrices dominated by pastures had higher AR than landscapes dominated by Eucalyptus at the 1500 m spatial scale. At the link level, FST was best explained by slope, with lower values imposing more resistance. All resistance surfaces explained G’ST. Conclusions: In addition to conserving and restoring habitats, management practices that improve matrix permeability should be adopted to favor the movement of dispersers, consequently improving natural regeneration, increasing allelic richness, and decreasing genetic differentiation of natural populations. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 2023-03-01T20:27:04Z 2023-03-01T20:27:04Z |
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/10.1007/s10980-022-01498-6 Landscape Ecology. 1572-9761 0921-2973 http://hdl.handle.net/11449/240655 10.1007/s10980-022-01498-6 2-s2.0-85136013498 |
url |
http://dx.doi.org/10.1007/s10980-022-01498-6 http://hdl.handle.net/11449/240655 |
identifier_str_mv |
Landscape Ecology. 1572-9761 0921-2973 10.1007/s10980-022-01498-6 2-s2.0-85136013498 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Landscape Ecology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1799964621921058816 |