Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance
- Autores
- Franzese, Jorgelina; Ghermandi, Luciana
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Semiarid grasslands in NW Patagonia (Argentina) are dominated by Festuca pallescens and Pappostipa speciosa, two native tussock grasses that differ in water stress tolerance and in palatability to livestock. Both species regenerate in gap microsites invaded by the exotic herb Rumex acetosella. We performed a greenhouse experiment to study the effect of Rumex competition on early growth of the dominant tussock-grasses. In February 2008 we used about 4-month-old seedlings to establish competition treatments that simulated a dry or wet summer. Competition among grasses was also quantified to relativize the effect of Rumex competition on each grass species. Rumex seedlings had a negative impact on grass seedlings, but it was not greater than that produced by any co-dominant grass. Grass species did not differ in their sensitivity to competition by Rumex or to water stress. In dry conditions, there was an intense underground competition between grass species, but there was no evidence of underground competition from Rumex. The low competitive ability of Rumex under water stress may indicate that its invasive potential from a seedling stage would be limited by the aridity of the environment. Moreover, the high bud production of Rumex seedlings suggests an early contribution to the soil bud bank, a key eco-biologic trait of this invasive species. Therefore, the estimation of the bud bank abundance and the study of how vegetative regeneration may be interfering grass recruitment should be considered in future research.
Fil: Franzese, Jorgelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación En Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina
Fil: Ghermandi, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina - Materia
-
Festuca Pallescens
Gaps
Pappostipa Speciosa
Patagonia
Semiarid Grassland - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/12052
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/12052 |
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Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress toleranceFranzese, JorgelinaGhermandi, LucianaFestuca PallescensGapsPappostipa SpeciosaPatagoniaSemiarid Grasslandhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Semiarid grasslands in NW Patagonia (Argentina) are dominated by Festuca pallescens and Pappostipa speciosa, two native tussock grasses that differ in water stress tolerance and in palatability to livestock. Both species regenerate in gap microsites invaded by the exotic herb Rumex acetosella. We performed a greenhouse experiment to study the effect of Rumex competition on early growth of the dominant tussock-grasses. In February 2008 we used about 4-month-old seedlings to establish competition treatments that simulated a dry or wet summer. Competition among grasses was also quantified to relativize the effect of Rumex competition on each grass species. Rumex seedlings had a negative impact on grass seedlings, but it was not greater than that produced by any co-dominant grass. Grass species did not differ in their sensitivity to competition by Rumex or to water stress. In dry conditions, there was an intense underground competition between grass species, but there was no evidence of underground competition from Rumex. The low competitive ability of Rumex under water stress may indicate that its invasive potential from a seedling stage would be limited by the aridity of the environment. Moreover, the high bud production of Rumex seedlings suggests an early contribution to the soil bud bank, a key eco-biologic trait of this invasive species. Therefore, the estimation of the bud bank abundance and the study of how vegetative regeneration may be interfering grass recruitment should be considered in future research.Fil: Franzese, Jorgelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación En Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; ArgentinaFil: Ghermandi, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; ArgentinaElsevier2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/12052Franzese, Jorgelina; Ghermandi, Luciana; Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance; Elsevier; Journal of Arid Environments; 106; 7-2014; 58-620140-1963enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0140196314000639info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1016/j.jaridenv.2014.03.004info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:28Zoai:ri.conicet.gov.ar:11336/12052instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:36:29.153CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance |
title |
Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance |
spellingShingle |
Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance Franzese, Jorgelina Festuca Pallescens Gaps Pappostipa Speciosa Patagonia Semiarid Grassland |
title_short |
Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance |
title_full |
Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance |
title_fullStr |
Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance |
title_full_unstemmed |
Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance |
title_sort |
Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance |
dc.creator.none.fl_str_mv |
Franzese, Jorgelina Ghermandi, Luciana |
author |
Franzese, Jorgelina |
author_facet |
Franzese, Jorgelina Ghermandi, Luciana |
author_role |
author |
author2 |
Ghermandi, Luciana |
author2_role |
author |
dc.subject.none.fl_str_mv |
Festuca Pallescens Gaps Pappostipa Speciosa Patagonia Semiarid Grassland |
topic |
Festuca Pallescens Gaps Pappostipa Speciosa Patagonia Semiarid Grassland |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Semiarid grasslands in NW Patagonia (Argentina) are dominated by Festuca pallescens and Pappostipa speciosa, two native tussock grasses that differ in water stress tolerance and in palatability to livestock. Both species regenerate in gap microsites invaded by the exotic herb Rumex acetosella. We performed a greenhouse experiment to study the effect of Rumex competition on early growth of the dominant tussock-grasses. In February 2008 we used about 4-month-old seedlings to establish competition treatments that simulated a dry or wet summer. Competition among grasses was also quantified to relativize the effect of Rumex competition on each grass species. Rumex seedlings had a negative impact on grass seedlings, but it was not greater than that produced by any co-dominant grass. Grass species did not differ in their sensitivity to competition by Rumex or to water stress. In dry conditions, there was an intense underground competition between grass species, but there was no evidence of underground competition from Rumex. The low competitive ability of Rumex under water stress may indicate that its invasive potential from a seedling stage would be limited by the aridity of the environment. Moreover, the high bud production of Rumex seedlings suggests an early contribution to the soil bud bank, a key eco-biologic trait of this invasive species. Therefore, the estimation of the bud bank abundance and the study of how vegetative regeneration may be interfering grass recruitment should be considered in future research. Fil: Franzese, Jorgelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación En Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina Fil: Ghermandi, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina |
description |
Semiarid grasslands in NW Patagonia (Argentina) are dominated by Festuca pallescens and Pappostipa speciosa, two native tussock grasses that differ in water stress tolerance and in palatability to livestock. Both species regenerate in gap microsites invaded by the exotic herb Rumex acetosella. We performed a greenhouse experiment to study the effect of Rumex competition on early growth of the dominant tussock-grasses. In February 2008 we used about 4-month-old seedlings to establish competition treatments that simulated a dry or wet summer. Competition among grasses was also quantified to relativize the effect of Rumex competition on each grass species. Rumex seedlings had a negative impact on grass seedlings, but it was not greater than that produced by any co-dominant grass. Grass species did not differ in their sensitivity to competition by Rumex or to water stress. In dry conditions, there was an intense underground competition between grass species, but there was no evidence of underground competition from Rumex. The low competitive ability of Rumex under water stress may indicate that its invasive potential from a seedling stage would be limited by the aridity of the environment. Moreover, the high bud production of Rumex seedlings suggests an early contribution to the soil bud bank, a key eco-biologic trait of this invasive species. Therefore, the estimation of the bud bank abundance and the study of how vegetative regeneration may be interfering grass recruitment should be considered in future research. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/12052 Franzese, Jorgelina; Ghermandi, Luciana; Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance; Elsevier; Journal of Arid Environments; 106; 7-2014; 58-62 0140-1963 |
url |
http://hdl.handle.net/11336/12052 |
identifier_str_mv |
Franzese, Jorgelina; Ghermandi, Luciana; Early competition between the exotic herb Rumex acetosella and two native tussock grasses with different palatability and water stress tolerance; Elsevier; Journal of Arid Environments; 106; 7-2014; 58-62 0140-1963 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0140196314000639 info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1016/j.jaridenv.2014.03.004 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1844613144583864320 |
score |
13.070432 |