Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub

Autores
Srur, Ana Marina; Golluscio, Rodolfo; Villalba, Ricardo; Hodara, Karina
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Grazing influences the morphology and growth rate of shrubs, and consequently, their population dynamics. It has been shown that grazing directly affects the growth of shrubs. On the other hand, the reduction of grass biomass by herbivores reduces soil-water competition between grasses and shrubs, and indirectly, could enhance the growth of shrubs. However, the lack of long and homogeneous records of plant dynamics and primary production in the arid Patagonia hampers the assessment of the long-term effects of grazing on the growth of shrubs. We combined allometric and growth-ring analyses to assess the direct effect of grazing on individuals of Anarthrophyllum rigidum, a leguminous shrub widely distributed across the Patagonian steppe. The evergreen, protein-rich leaves of A. rigidum constitute an important complement for the sheep diet, particularly in winter when the abundance of grasses is reduced. Our observations indicated that individuals nearby the water source are smaller in size (35.5 cm vs. 67.39 cm), and present a larger number of basal branches (23 vs. 12), and show slower rates of growth (8.2 mm yr-1 vs. 13.3mm yr-1) than those located far from the water source. Our first quantification of the long-term effects of grazing on A. rigidum individuals suggests that beneficial effects of grazing through the reduction of grasses that compete for soil water should be more obvious for non-preferred than preferred shrubs in the dry Patagonian steppe.
Fil: Srur, Ana Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Golluscio, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Producción Animal; Argentina
Fil: Villalba, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Hodara, Karina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; Argentina
Materia
Growth- Ring Analysis
Allometric Traits
Herbivore Preference
Anartrophyllum Rigidum
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/4188

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network_name_str CONICET Digital (CONICET)
spelling Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrubSrur, Ana MarinaGolluscio, RodolfoVillalba, RicardoHodara, KarinaGrowth- Ring AnalysisAllometric TraitsHerbivore PreferenceAnartrophyllum Rigidumhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Grazing influences the morphology and growth rate of shrubs, and consequently, their population dynamics. It has been shown that grazing directly affects the growth of shrubs. On the other hand, the reduction of grass biomass by herbivores reduces soil-water competition between grasses and shrubs, and indirectly, could enhance the growth of shrubs. However, the lack of long and homogeneous records of plant dynamics and primary production in the arid Patagonia hampers the assessment of the long-term effects of grazing on the growth of shrubs. We combined allometric and growth-ring analyses to assess the direct effect of grazing on individuals of Anarthrophyllum rigidum, a leguminous shrub widely distributed across the Patagonian steppe. The evergreen, protein-rich leaves of A. rigidum constitute an important complement for the sheep diet, particularly in winter when the abundance of grasses is reduced. Our observations indicated that individuals nearby the water source are smaller in size (35.5 cm vs. 67.39 cm), and present a larger number of basal branches (23 vs. 12), and show slower rates of growth (8.2 mm yr-1 vs. 13.3mm yr-1) than those located far from the water source. Our first quantification of the long-term effects of grazing on A. rigidum individuals suggests that beneficial effects of grazing through the reduction of grasses that compete for soil water should be more obvious for non-preferred than preferred shrubs in the dry Patagonian steppe.Fil: Srur, Ana Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Golluscio, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Producción Animal; ArgentinaFil: Villalba, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Hodara, Karina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; ArgentinaElsevier2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4188Srur, Ana Marina; Golluscio, Rodolfo; Villalba, Ricardo; Hodara, Karina; Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub; Elsevier; Dendrochronologia; 31; 3; 4-2013; 223-2271125-7865enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S112578651300026Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.dendro.2013.02.002info:eu-repo/semantics/altIdentifier/issn/1125-7865info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:35:58Zoai:ri.conicet.gov.ar:11336/4188instacron: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 10:35:58.559CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub
title Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub
spellingShingle Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub
Srur, Ana Marina
Growth- Ring Analysis
Allometric Traits
Herbivore Preference
Anartrophyllum Rigidum
title_short Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub
title_full Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub
title_fullStr Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub
title_full_unstemmed Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub
title_sort Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub
dc.creator.none.fl_str_mv Srur, Ana Marina
Golluscio, Rodolfo
Villalba, Ricardo
Hodara, Karina
author Srur, Ana Marina
author_facet Srur, Ana Marina
Golluscio, Rodolfo
Villalba, Ricardo
Hodara, Karina
author_role author
author2 Golluscio, Rodolfo
Villalba, Ricardo
Hodara, Karina
author2_role author
author
author
dc.subject.none.fl_str_mv Growth- Ring Analysis
Allometric Traits
Herbivore Preference
Anartrophyllum Rigidum
topic Growth- Ring Analysis
Allometric Traits
Herbivore Preference
Anartrophyllum Rigidum
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Grazing influences the morphology and growth rate of shrubs, and consequently, their population dynamics. It has been shown that grazing directly affects the growth of shrubs. On the other hand, the reduction of grass biomass by herbivores reduces soil-water competition between grasses and shrubs, and indirectly, could enhance the growth of shrubs. However, the lack of long and homogeneous records of plant dynamics and primary production in the arid Patagonia hampers the assessment of the long-term effects of grazing on the growth of shrubs. We combined allometric and growth-ring analyses to assess the direct effect of grazing on individuals of Anarthrophyllum rigidum, a leguminous shrub widely distributed across the Patagonian steppe. The evergreen, protein-rich leaves of A. rigidum constitute an important complement for the sheep diet, particularly in winter when the abundance of grasses is reduced. Our observations indicated that individuals nearby the water source are smaller in size (35.5 cm vs. 67.39 cm), and present a larger number of basal branches (23 vs. 12), and show slower rates of growth (8.2 mm yr-1 vs. 13.3mm yr-1) than those located far from the water source. Our first quantification of the long-term effects of grazing on A. rigidum individuals suggests that beneficial effects of grazing through the reduction of grasses that compete for soil water should be more obvious for non-preferred than preferred shrubs in the dry Patagonian steppe.
Fil: Srur, Ana Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Golluscio, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Producción Animal; Argentina
Fil: Villalba, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Hodara, Karina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; Argentina
description Grazing influences the morphology and growth rate of shrubs, and consequently, their population dynamics. It has been shown that grazing directly affects the growth of shrubs. On the other hand, the reduction of grass biomass by herbivores reduces soil-water competition between grasses and shrubs, and indirectly, could enhance the growth of shrubs. However, the lack of long and homogeneous records of plant dynamics and primary production in the arid Patagonia hampers the assessment of the long-term effects of grazing on the growth of shrubs. We combined allometric and growth-ring analyses to assess the direct effect of grazing on individuals of Anarthrophyllum rigidum, a leguminous shrub widely distributed across the Patagonian steppe. The evergreen, protein-rich leaves of A. rigidum constitute an important complement for the sheep diet, particularly in winter when the abundance of grasses is reduced. Our observations indicated that individuals nearby the water source are smaller in size (35.5 cm vs. 67.39 cm), and present a larger number of basal branches (23 vs. 12), and show slower rates of growth (8.2 mm yr-1 vs. 13.3mm yr-1) than those located far from the water source. Our first quantification of the long-term effects of grazing on A. rigidum individuals suggests that beneficial effects of grazing through the reduction of grasses that compete for soil water should be more obvious for non-preferred than preferred shrubs in the dry Patagonian steppe.
publishDate 2013
dc.date.none.fl_str_mv 2013-04
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/11336/4188
Srur, Ana Marina; Golluscio, Rodolfo; Villalba, Ricardo; Hodara, Karina; Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub; Elsevier; Dendrochronologia; 31; 3; 4-2013; 223-227
1125-7865
url http://hdl.handle.net/11336/4188
identifier_str_mv Srur, Ana Marina; Golluscio, Rodolfo; Villalba, Ricardo; Hodara, Karina; Grazing-induced morphological and growth rate changes in Anarthrophyllum rigidum, a Patagonian leguminous shrub; Elsevier; Dendrochronologia; 31; 3; 4-2013; 223-227
1125-7865
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/S112578651300026X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dendro.2013.02.002
info:eu-repo/semantics/altIdentifier/issn/1125-7865
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
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
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