Seed dispersal effectiveness in fragmented and defaunated landscapes

Landscape fragmentation and defaunation have major impacts on plant dispersal and dynamics. However, whether the impact of such perturbations on seed dispersal and recruitment change in sign and strength across habitats and spatial scales, and whether they amplify or buffer each other, remains large...

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Detalles Bibliográficos
Autores: Fedriani Laffitte, José María, Wiegand, Thorsten, Garrote, Pedro J., Leiva Morales, María José, Ayllón, Daniel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/156390
Acceso en línea:https://hdl.handle.net/11441/156390
https://doi.org/10.1002/ecs2.4658
Access Level:acceso abierto
Palabra clave:Costs of dispersal
Global change
Habitat heterogeneity
Long-distance seed dispersal
Perturbations
Recruitment
Scale-dependent responses
Seed mortality
Simulation model
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spelling Seed dispersal effectiveness in fragmented and defaunated landscapesFedriani Laffitte, José MaríaWiegand, ThorstenGarrote, Pedro J.Leiva Morales, María JoséAyllón, DanielCosts of dispersalGlobal changeHabitat heterogeneityLong-distance seed dispersalPerturbationsRecruitmentScale-dependent responsesSeed mortalitySimulation modelLandscape fragmentation and defaunation have major impacts on plant dispersal and dynamics. However, whether the impact of such perturbations on seed dispersal and recruitment change in sign and strength across habitats and spatial scales, and whether they amplify or buffer each other, remains largely unknown. To evaluate, for the first time, the joint impact of fragmentation and defaunation on seed dispersal effectiveness (SDE) across spatial scales (e.g., short- and long-distance seed dispersal), we utilized the long-term field data of a mammal-dispersed tree (Pyrus bourgaeana) in a spatially explicit individual-based model. By means of simulation experiments, we evaluated the effects of different levels of landscape fragmentation and defaunation on SDE and tree recruitment. Our simulation results revealed that the direction and magnitude of the fragmentation effect on SDE depended on its strength (mild, severe) and the spatial scale considered. Severe fragmentation decreased SDE for short- and intermediate-distance seed dispersal. Interestingly, mild and severe fragmentation increased SDE of long-distance seed dispersal, suggesting a positive effect of such perturbations (i.e., an increase in the proportion of successful long-distance dispersal events). Though defaunation had a consistently negative effect on overall SDE, its magnitude was highly species- and spatial–scale-dependent. The impact of defaunation on seed dispersal distance was also species-specific: the proportion of long-distance dispersal increased under total badger (Meles meles) defaunation but decreased under total fox (Vulpes vulpes) defaunation. A pervasive integration of seed dispersal distance into the SDE framework is essential to most comprehensively understand the scale-dependent nature of human activity impacts on plant dynamics. In the long term, strong perturbations (landscape fragmentation and defaunation) could select either for or against long-distance seed dispersal, altering in different ways the ability of plants to cope with climate change.Ministerio de Ciencia, Innovación y Universidades PGC2018-094808-B-I00Wiley-BlackwellBiología Vegetal y EcologíaMinisterio de Ciencia, Innovación y Universidades (MICINN). España2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/156390https://doi.org/10.1002/ecs2.4658reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésEcosphere, 14 (9), e4658.PGC2018-094808-B-I00https://doi.org/10.1002/ecs2.4658info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1563902026-06-17T12:51:07Z
dc.title.none.fl_str_mv Seed dispersal effectiveness in fragmented and defaunated landscapes
title Seed dispersal effectiveness in fragmented and defaunated landscapes
spellingShingle Seed dispersal effectiveness in fragmented and defaunated landscapes
Fedriani Laffitte, José María
Costs of dispersal
Global change
Habitat heterogeneity
Long-distance seed dispersal
Perturbations
Recruitment
Scale-dependent responses
Seed mortality
Simulation model
title_short Seed dispersal effectiveness in fragmented and defaunated landscapes
title_full Seed dispersal effectiveness in fragmented and defaunated landscapes
title_fullStr Seed dispersal effectiveness in fragmented and defaunated landscapes
title_full_unstemmed Seed dispersal effectiveness in fragmented and defaunated landscapes
title_sort Seed dispersal effectiveness in fragmented and defaunated landscapes
dc.creator.none.fl_str_mv Fedriani Laffitte, José María
Wiegand, Thorsten
Garrote, Pedro J.
Leiva Morales, María José
Ayllón, Daniel
author Fedriani Laffitte, José María
author_facet Fedriani Laffitte, José María
Wiegand, Thorsten
Garrote, Pedro J.
Leiva Morales, María José
Ayllón, Daniel
author_role author
author2 Wiegand, Thorsten
Garrote, Pedro J.
Leiva Morales, María José
Ayllón, Daniel
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Biología Vegetal y Ecología
Ministerio de Ciencia, Innovación y Universidades (MICINN). España
dc.subject.none.fl_str_mv Costs of dispersal
Global change
Habitat heterogeneity
Long-distance seed dispersal
Perturbations
Recruitment
Scale-dependent responses
Seed mortality
Simulation model
topic Costs of dispersal
Global change
Habitat heterogeneity
Long-distance seed dispersal
Perturbations
Recruitment
Scale-dependent responses
Seed mortality
Simulation model
description Landscape fragmentation and defaunation have major impacts on plant dispersal and dynamics. However, whether the impact of such perturbations on seed dispersal and recruitment change in sign and strength across habitats and spatial scales, and whether they amplify or buffer each other, remains largely unknown. To evaluate, for the first time, the joint impact of fragmentation and defaunation on seed dispersal effectiveness (SDE) across spatial scales (e.g., short- and long-distance seed dispersal), we utilized the long-term field data of a mammal-dispersed tree (Pyrus bourgaeana) in a spatially explicit individual-based model. By means of simulation experiments, we evaluated the effects of different levels of landscape fragmentation and defaunation on SDE and tree recruitment. Our simulation results revealed that the direction and magnitude of the fragmentation effect on SDE depended on its strength (mild, severe) and the spatial scale considered. Severe fragmentation decreased SDE for short- and intermediate-distance seed dispersal. Interestingly, mild and severe fragmentation increased SDE of long-distance seed dispersal, suggesting a positive effect of such perturbations (i.e., an increase in the proportion of successful long-distance dispersal events). Though defaunation had a consistently negative effect on overall SDE, its magnitude was highly species- and spatial–scale-dependent. The impact of defaunation on seed dispersal distance was also species-specific: the proportion of long-distance dispersal increased under total badger (Meles meles) defaunation but decreased under total fox (Vulpes vulpes) defaunation. A pervasive integration of seed dispersal distance into the SDE framework is essential to most comprehensively understand the scale-dependent nature of human activity impacts on plant dynamics. In the long term, strong perturbations (landscape fragmentation and defaunation) could select either for or against long-distance seed dispersal, altering in different ways the ability of plants to cope with climate change.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/156390
https://doi.org/10.1002/ecs2.4658
url https://hdl.handle.net/11441/156390
https://doi.org/10.1002/ecs2.4658
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Ecosphere, 14 (9), e4658.
PGC2018-094808-B-I00
https://doi.org/10.1002/ecs2.4658
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley-Blackwell
publisher.none.fl_str_mv Wiley-Blackwell
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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