Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuaries

Invasive alien plant species impart considerable impacts that contribute to the decline of biodiversity worldwide. The ability of an invasive species to overcome barriers to establish and spread in new environments, and the long-term effects of plant invasions supporting their persistence are keys t...

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Authors: Abbas, Ahmed M., Pickart, Andrea J., Goldsmith, Laurel M., Davenport, Desiree N., Newby, Britney, Muñoz Rodríguez, Adolfo Francisco, Grewell, Brenda J., Castillo Segura, Jesús Manuel
Format: article
Status:Published version
Publication Date:2021
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/130759
Online Access:https://hdl.handle.net/11441/130759
https://doi.org/10.1093/aobpla/plab014
Access Level:Open access
Keyword:climate change
germination
invasive species
salt marsh
seed dormancy
Spartina densiflora
id ES_c4f738f449fd85f5512be3d02fba3a20
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spelling Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuariesAbbas, Ahmed M.Pickart, Andrea J.Goldsmith, Laurel M.Davenport, Desiree N.Newby, BritneyMuñoz Rodríguez, Adolfo FranciscoGrewell, Brenda J.Castillo Segura, Jesús Manuelclimate changegerminationinvasive speciessalt marshseed dormancySpartina densifloraInvasive alien plant species impart considerable impacts that contribute to the decline of biodiversity worldwide. The ability of an invasive species to overcome barriers to establish and spread in new environments, and the long-term effects of plant invasions supporting their persistence are keys to invasion success. The capacity of introduced species to form soil seed banks can contribute to their invasiveness, yet few studies of invaders have addressed seed bank dynamics. Improved knowledge of this recruitment process can improve conservation management. We studied temporal and spatial changes in soil seed bank characteristics of the cordgrass Spartina densiflora from two continental invaded ranges. In the Odiel Marshes (Southwest Iberian Peninsula), S. densiflora formed transient seed banks (<1 year). At Humboldt Bay Estuary (California), viable seeds persisted for at least 4 years though the germination percentage fell abruptly after the first year from 29 % to less than 5 % of remaining viable seeds. Total soil seed bank density increased with S. densiflora above-ground cover in both estuaries, pointing to the transient component of the seed bank as a critical component of vegetation dynamics during S. densiflora invasion. Even so, seed densities as high as c. 750 seeds m-2 in Odiel Marshes and c. 12 400 seeds m-2 in Humboldt Bay were recorded in some plots without fruiting S. densiflora plants. S. densiflora spikelet (dispersal unit) density was more than double close to the sediment surface than deeper within soil. Our study shows the importance of evaluating seed banks during the design of invasive species management since seed bank persistence may vary among invaded sites, and can affect the timing and duration required for desired management outcomes.Oxford University PressBiología Vegetal y Ecología2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/130759https://doi.org/10.1093/aobpla/plab014reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésAoB Plants, 13 (3), plab014.http://dx.doi.org/10.1093/aobpla/plab014info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1307592026-06-17T12:51:07Z
dc.title.none.fl_str_mv Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuaries
title Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuaries
spellingShingle Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuaries
Abbas, Ahmed M.
climate change
germination
invasive species
salt marsh
seed dormancy
Spartina densiflora
title_short Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuaries
title_full Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuaries
title_fullStr Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuaries
title_full_unstemmed Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuaries
title_sort Seed bank persistence of a South American cordgrass in invaded northern Atlantic and Pacific Coast estuaries
dc.creator.none.fl_str_mv Abbas, Ahmed M.
Pickart, Andrea J.
Goldsmith, Laurel M.
Davenport, Desiree N.
Newby, Britney
Muñoz Rodríguez, Adolfo Francisco
Grewell, Brenda J.
Castillo Segura, Jesús Manuel
author Abbas, Ahmed M.
author_facet Abbas, Ahmed M.
Pickart, Andrea J.
Goldsmith, Laurel M.
Davenport, Desiree N.
Newby, Britney
Muñoz Rodríguez, Adolfo Francisco
Grewell, Brenda J.
Castillo Segura, Jesús Manuel
author_role author
author2 Pickart, Andrea J.
Goldsmith, Laurel M.
Davenport, Desiree N.
Newby, Britney
Muñoz Rodríguez, Adolfo Francisco
Grewell, Brenda J.
Castillo Segura, Jesús Manuel
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Biología Vegetal y Ecología
dc.subject.none.fl_str_mv climate change
germination
invasive species
salt marsh
seed dormancy
Spartina densiflora
topic climate change
germination
invasive species
salt marsh
seed dormancy
Spartina densiflora
description Invasive alien plant species impart considerable impacts that contribute to the decline of biodiversity worldwide. The ability of an invasive species to overcome barriers to establish and spread in new environments, and the long-term effects of plant invasions supporting their persistence are keys to invasion success. The capacity of introduced species to form soil seed banks can contribute to their invasiveness, yet few studies of invaders have addressed seed bank dynamics. Improved knowledge of this recruitment process can improve conservation management. We studied temporal and spatial changes in soil seed bank characteristics of the cordgrass Spartina densiflora from two continental invaded ranges. In the Odiel Marshes (Southwest Iberian Peninsula), S. densiflora formed transient seed banks (<1 year). At Humboldt Bay Estuary (California), viable seeds persisted for at least 4 years though the germination percentage fell abruptly after the first year from 29 % to less than 5 % of remaining viable seeds. Total soil seed bank density increased with S. densiflora above-ground cover in both estuaries, pointing to the transient component of the seed bank as a critical component of vegetation dynamics during S. densiflora invasion. Even so, seed densities as high as c. 750 seeds m-2 in Odiel Marshes and c. 12 400 seeds m-2 in Humboldt Bay were recorded in some plots without fruiting S. densiflora plants. S. densiflora spikelet (dispersal unit) density was more than double close to the sediment surface than deeper within soil. Our study shows the importance of evaluating seed banks during the design of invasive species management since seed bank persistence may vary among invaded sites, and can affect the timing and duration required for desired management outcomes.
publishDate 2021
dc.date.none.fl_str_mv 2021
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/11441/130759
https://doi.org/10.1093/aobpla/plab014
url https://hdl.handle.net/11441/130759
https://doi.org/10.1093/aobpla/plab014
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv AoB Plants, 13 (3), plab014.
http://dx.doi.org/10.1093/aobpla/plab014
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 Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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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score 15,301629

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