Season-long seed dispersal patterns of the invasive weed Erigeron bonariensis in south-western Spain

Within-field demography of weeds exhibiting wind-mediated long distance seed movement can be largely governed by extra-field seed-source populations. Thus, for these species, a clear understanding of the temporal and spatial patterns of seed dispersal can benefit the development of effective managem...

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Detalles Bibliográficos
Autores: Bastida Milián, Fernando, Menéndez Calle, Julio, Camacho, Daniel, González Andújar, José Luis
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/20185
Acceso en línea:http://hdl.handle.net/10272/20185
Access Level:acceso abierto
Palabra clave:Anemochory
Anisotropic dispersal
Conyza bonariensis
Dispersal kernel
Hairy fleabane
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spelling Season-long seed dispersal patterns of the invasive weed Erigeron bonariensis in south-western SpainBastida Milián, FernandoMenéndez Calle, JulioCamacho, DanielGonzález Andújar, José LuisAnemochoryAnisotropic dispersalConyza bonariensisDispersal kernelHairy fleabaneWithin-field demography of weeds exhibiting wind-mediated long distance seed movement can be largely governed by extra-field seed-source populations. Thus, for these species, a clear understanding of the temporal and spatial patterns of seed dispersal can benefit the development of effective management options. The spatial distribution of the seeds released from the onset of fruiting, in early summer, to the onset of the rainy season, in early autumn, was studied during 2 years at a Mediterranean-climate locality in Erigeron bonariensis L. (Hairy fleabane), a wind-dispersed invasive weed inhabiting ruderal environments and crop fields. Each year, a small source population was established in an open field in SW Spain and seed traps were arranged in the eight cardinal directions at distances up to 100 m (year 1), or in the NE and NW directions at distances up to 65 m (year 2). Counts of trapped seeds were carried out at 4–6 day intervals and the number of seeds released by the source population was estimated each year in most census dates. Four empirical dispersal models based on either thin-tailed or fat-tailed density kernels were tested using year 1 data for their ability to represent the spatial distribution of seeds. To test for anisotropic dispersal, model parameters were allowed to vary according to the wind pattern in each cardinal direction. Based on information criteria, a model including a fat-tailed, Log-hyperbolic secant kernel showing parameter response to the wind pattern, highlighting striking anisotropic dispersal, was selected and evaluated using year 2 data. Distance percentiles 50 and 80 attained by the seed crop released in year 1 season were modeled at 530 m and 10,498 m, respectively. The opposite quadrants encompassing the dominant downwind (N-NE) and upwind directions (S-SW) received 52.5% and 10.8% of seeds. The year 1 population, consisting of 85 plants, generated a modeled seed rain of at least 10 seeds m 2 up to 200 m downwind. Implications of results for management of this herbicide resistance-prone species are discussed.Elsevier20212021-01-0120212021-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/20185reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/201852026-06-02T14:58:11Z
dc.title.none.fl_str_mv Season-long seed dispersal patterns of the invasive weed Erigeron bonariensis in south-western Spain
title Season-long seed dispersal patterns of the invasive weed Erigeron bonariensis in south-western Spain
spellingShingle Season-long seed dispersal patterns of the invasive weed Erigeron bonariensis in south-western Spain
Bastida Milián, Fernando
Anemochory
Anisotropic dispersal
Conyza bonariensis
Dispersal kernel
Hairy fleabane
title_short Season-long seed dispersal patterns of the invasive weed Erigeron bonariensis in south-western Spain
title_full Season-long seed dispersal patterns of the invasive weed Erigeron bonariensis in south-western Spain
title_fullStr Season-long seed dispersal patterns of the invasive weed Erigeron bonariensis in south-western Spain
title_full_unstemmed Season-long seed dispersal patterns of the invasive weed Erigeron bonariensis in south-western Spain
title_sort Season-long seed dispersal patterns of the invasive weed Erigeron bonariensis in south-western Spain
dc.creator.none.fl_str_mv Bastida Milián, Fernando
Menéndez Calle, Julio
Camacho, Daniel
González Andújar, José Luis
author Bastida Milián, Fernando
author_facet Bastida Milián, Fernando
Menéndez Calle, Julio
Camacho, Daniel
González Andújar, José Luis
author_role author
author2 Menéndez Calle, Julio
Camacho, Daniel
González Andújar, José Luis
author2_role author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Anemochory
Anisotropic dispersal
Conyza bonariensis
Dispersal kernel
Hairy fleabane
topic Anemochory
Anisotropic dispersal
Conyza bonariensis
Dispersal kernel
Hairy fleabane
description Within-field demography of weeds exhibiting wind-mediated long distance seed movement can be largely governed by extra-field seed-source populations. Thus, for these species, a clear understanding of the temporal and spatial patterns of seed dispersal can benefit the development of effective management options. The spatial distribution of the seeds released from the onset of fruiting, in early summer, to the onset of the rainy season, in early autumn, was studied during 2 years at a Mediterranean-climate locality in Erigeron bonariensis L. (Hairy fleabane), a wind-dispersed invasive weed inhabiting ruderal environments and crop fields. Each year, a small source population was established in an open field in SW Spain and seed traps were arranged in the eight cardinal directions at distances up to 100 m (year 1), or in the NE and NW directions at distances up to 65 m (year 2). Counts of trapped seeds were carried out at 4–6 day intervals and the number of seeds released by the source population was estimated each year in most census dates. Four empirical dispersal models based on either thin-tailed or fat-tailed density kernels were tested using year 1 data for their ability to represent the spatial distribution of seeds. To test for anisotropic dispersal, model parameters were allowed to vary according to the wind pattern in each cardinal direction. Based on information criteria, a model including a fat-tailed, Log-hyperbolic secant kernel showing parameter response to the wind pattern, highlighting striking anisotropic dispersal, was selected and evaluated using year 2 data. Distance percentiles 50 and 80 attained by the seed crop released in year 1 season were modeled at 530 m and 10,498 m, respectively. The opposite quadrants encompassing the dominant downwind (N-NE) and upwind directions (S-SW) received 52.5% and 10.8% of seeds. The year 1 population, consisting of 85 plants, generated a modeled seed rain of at least 10 seeds m 2 up to 200 m downwind. Implications of results for management of this herbicide resistance-prone species are discussed.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-01
2021
2021-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/20185
url http://hdl.handle.net/10272/20185
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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