Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches
- Autores
- Rodriguez, Maria Victoria; Bertiller, Monica Beatriz
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We described seasonal changes in fine-root biomass of a grass and a shrub dominant species in a plant community characteristic of the arid Patagonian Monte and then we inferred to want extent the observed differences could contribute to the species coexistence. We selected representative plant patches of the natural vegetation arrangement consisting of one isolated plant of the dominant shrub Larrea divaricata (Ld), grass patches formed by one or more bunches of the dominant grass Nassella tenuis (Nt), and mixed patches consisting of one individual of L. divaricata with bunches of N. tenuis under its canopy (LdNt). We assessed the biomass and temporal changes in fine roots of each species in the upper soil (50 cm depth) of each patch type at three-month intervals during 2 years. The temporal series of fine-root biomass were compared among patch types and in relation to above-ground phenology, as well as climate variables (precipitation, arid index and air temperature). Seasonal changes in fine-root biomass showed similar cycles in the three plant patches with a maximum in spring. The maximum increase in root biomass in Ld and Nt patches occurred during the onset of reproductive growth in winter and spring, respectively. Fine-root changes in LdNt patches mimicked that in Ld patches. Precipitation inputs were significantly positively and temperature negatively related to fine-root changes in Nt patches. Fine-root changes in Ld and LdNt patches were related to the aridity index (positively) and temperature (negatively). We concluded that the observed asynchronies in the date of the largest increases in root biomass and its climate control between the studied grass and shrub species could contribute to the coexistence of plants of both life forms when they overlap their root systems growing in mixed patches. Mechanisms underlying the root patterns observed should be further explored.
Fil: Rodriguez, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Bertiller, Monica Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina - Materia
-
Coexistence
Evergreen Shrub
Mixed Patch
Perennial Grass - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/3526
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Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patchesRodriguez, Maria VictoriaBertiller, Monica BeatrizCoexistenceEvergreen ShrubMixed PatchPerennial Grasshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We described seasonal changes in fine-root biomass of a grass and a shrub dominant species in a plant community characteristic of the arid Patagonian Monte and then we inferred to want extent the observed differences could contribute to the species coexistence. We selected representative plant patches of the natural vegetation arrangement consisting of one isolated plant of the dominant shrub Larrea divaricata (Ld), grass patches formed by one or more bunches of the dominant grass Nassella tenuis (Nt), and mixed patches consisting of one individual of L. divaricata with bunches of N. tenuis under its canopy (LdNt). We assessed the biomass and temporal changes in fine roots of each species in the upper soil (50 cm depth) of each patch type at three-month intervals during 2 years. The temporal series of fine-root biomass were compared among patch types and in relation to above-ground phenology, as well as climate variables (precipitation, arid index and air temperature). Seasonal changes in fine-root biomass showed similar cycles in the three plant patches with a maximum in spring. The maximum increase in root biomass in Ld and Nt patches occurred during the onset of reproductive growth in winter and spring, respectively. Fine-root changes in LdNt patches mimicked that in Ld patches. Precipitation inputs were significantly positively and temperature negatively related to fine-root changes in Nt patches. Fine-root changes in Ld and LdNt patches were related to the aridity index (positively) and temperature (negatively). We concluded that the observed asynchronies in the date of the largest increases in root biomass and its climate control between the studied grass and shrub species could contribute to the coexistence of plants of both life forms when they overlap their root systems growing in mixed patches. Mechanisms underlying the root patterns observed should be further explored.Fil: Rodriguez, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Bertiller, Monica Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaWiley2014-01-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/3526Rodriguez, Maria Victoria; Bertiller, Monica Beatriz; Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches; Wiley; Austral Ecology; 39; 5; 15-1-2014; 501-5101442-9985enginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/aec.12110/abstractinfo:eu-repo/semantics/altIdentifier/doi/DOI:10.1111/aec.12110info:eu-repo/semantics/altIdentifier/issn/1442-9985info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:52:44Zoai:ri.conicet.gov.ar:11336/3526instacron: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:34982025-10-15 14:52:44.709CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches |
title |
Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches |
spellingShingle |
Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches Rodriguez, Maria Victoria Coexistence Evergreen Shrub Mixed Patch Perennial Grass |
title_short |
Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches |
title_full |
Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches |
title_fullStr |
Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches |
title_full_unstemmed |
Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches |
title_sort |
Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches |
dc.creator.none.fl_str_mv |
Rodriguez, Maria Victoria Bertiller, Monica Beatriz |
author |
Rodriguez, Maria Victoria |
author_facet |
Rodriguez, Maria Victoria Bertiller, Monica Beatriz |
author_role |
author |
author2 |
Bertiller, Monica Beatriz |
author2_role |
author |
dc.subject.none.fl_str_mv |
Coexistence Evergreen Shrub Mixed Patch Perennial Grass |
topic |
Coexistence Evergreen Shrub Mixed Patch Perennial Grass |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We described seasonal changes in fine-root biomass of a grass and a shrub dominant species in a plant community characteristic of the arid Patagonian Monte and then we inferred to want extent the observed differences could contribute to the species coexistence. We selected representative plant patches of the natural vegetation arrangement consisting of one isolated plant of the dominant shrub Larrea divaricata (Ld), grass patches formed by one or more bunches of the dominant grass Nassella tenuis (Nt), and mixed patches consisting of one individual of L. divaricata with bunches of N. tenuis under its canopy (LdNt). We assessed the biomass and temporal changes in fine roots of each species in the upper soil (50 cm depth) of each patch type at three-month intervals during 2 years. The temporal series of fine-root biomass were compared among patch types and in relation to above-ground phenology, as well as climate variables (precipitation, arid index and air temperature). Seasonal changes in fine-root biomass showed similar cycles in the three plant patches with a maximum in spring. The maximum increase in root biomass in Ld and Nt patches occurred during the onset of reproductive growth in winter and spring, respectively. Fine-root changes in LdNt patches mimicked that in Ld patches. Precipitation inputs were significantly positively and temperature negatively related to fine-root changes in Nt patches. Fine-root changes in Ld and LdNt patches were related to the aridity index (positively) and temperature (negatively). We concluded that the observed asynchronies in the date of the largest increases in root biomass and its climate control between the studied grass and shrub species could contribute to the coexistence of plants of both life forms when they overlap their root systems growing in mixed patches. Mechanisms underlying the root patterns observed should be further explored. Fil: Rodriguez, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Bertiller, Monica Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina |
description |
We described seasonal changes in fine-root biomass of a grass and a shrub dominant species in a plant community characteristic of the arid Patagonian Monte and then we inferred to want extent the observed differences could contribute to the species coexistence. We selected representative plant patches of the natural vegetation arrangement consisting of one isolated plant of the dominant shrub Larrea divaricata (Ld), grass patches formed by one or more bunches of the dominant grass Nassella tenuis (Nt), and mixed patches consisting of one individual of L. divaricata with bunches of N. tenuis under its canopy (LdNt). We assessed the biomass and temporal changes in fine roots of each species in the upper soil (50 cm depth) of each patch type at three-month intervals during 2 years. The temporal series of fine-root biomass were compared among patch types and in relation to above-ground phenology, as well as climate variables (precipitation, arid index and air temperature). Seasonal changes in fine-root biomass showed similar cycles in the three plant patches with a maximum in spring. The maximum increase in root biomass in Ld and Nt patches occurred during the onset of reproductive growth in winter and spring, respectively. Fine-root changes in LdNt patches mimicked that in Ld patches. Precipitation inputs were significantly positively and temperature negatively related to fine-root changes in Nt patches. Fine-root changes in Ld and LdNt patches were related to the aridity index (positively) and temperature (negatively). We concluded that the observed asynchronies in the date of the largest increases in root biomass and its climate control between the studied grass and shrub species could contribute to the coexistence of plants of both life forms when they overlap their root systems growing in mixed patches. Mechanisms underlying the root patterns observed should be further explored. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-15 |
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/11336/3526 Rodriguez, Maria Victoria; Bertiller, Monica Beatriz; Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches; Wiley; Austral Ecology; 39; 5; 15-1-2014; 501-510 1442-9985 |
url |
http://hdl.handle.net/11336/3526 |
identifier_str_mv |
Rodriguez, Maria Victoria; Bertiller, Monica Beatriz; Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches; Wiley; Austral Ecology; 39; 5; 15-1-2014; 501-510 1442-9985 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/aec.12110/abstract info:eu-repo/semantics/altIdentifier/doi/DOI:10.1111/aec.12110 info:eu-repo/semantics/altIdentifier/issn/1442-9985 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
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 |
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1846083056526426112 |
score |
13.22299 |