Functional group dominance and identity effects influence the magnitude of grassland invasion
- Autores
- Longo, Grisel; Seidler, Tristram G.; Garibaldi, Lucas Alejandro; Tognetti, Pedro M.; Chaneton, Enrique J.
- Año de publicación
- 2013
- Idioma
- español castellano
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Fil: Longo, Grisel. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina.
Fil: Seidler, Tristram G. Harvard Forest; USA.
Fil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro. Sede Andina; Argentina.
Fil: Tognetti, Pedro M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina.
Fil: Chaneton, Enrique J. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina.
Fil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Tognetti, Pedro M. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; Argentina.
Variation in functional community composition is expected to influence the extent of exotic species invasions. Yet, whether resident functional groups control invasion through their relative biomass (mass ratio hypothesis) or by traits other than biomass (identity hypothesis) remains poorly understood. We performed a 6 year experiment to determine the effects of removing different functional groups on exotic species biomass in a Flooding Pampa grassland, Argentina. Functional groups were defined by life form (grasses or forbs), phenology (winter or summer) and origin (native or exotic). Removal of each functional group was compared against the removal of an equivalent amount of random biomass. Exotic group responses were monitored over 4 years of continuous removals, and after 2 years of recovery without manipulations. Removal of dominant native summer grasses caused the greatest impact on exotic species and overall community composition. Native summer grass removal significantly increased exotic grass (120%) and forb (730%) biomass beyond the level (46% and 180%, respectively) expected from deleting a similar amount of biomass at random. Exotic annual grasses showed only a transient increase, whereas exotic forb invasion persisted even after 2 years without removals. Removing subordinate, native or exotic winter grasses, and rare native forbs significantly promoted exotic forbs, but to the same level (300%) as random biomass removals. Total grass removal increased exotic forbs to half the extent expected from adding the effects of single grass group removals. Dispersal limitation and harsh abiotic conditions may constrain exotic forb spread into such heavily grass depleted patches. Synthesis. The impact of losing a functional group on the magnitude and persistence of invasion reflected its relative contribution to community biomass. Identity attributes other than biomass (e.g. phenological niche) further enhanced the biotic control that dominant native grasses exerted on established exotic species. Our findings highlight the community legacies of past disturbances to dominant functional groups. - Materia
-
Biodiversity
Biotic Resistance
Invasion Ecology
Mass Ratio Hypothesis
Phenological Niches
Rank Abundance
Removal Experiment
Subadditive Effect - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de Río Negro
- OAI Identificador
- oai:rid.unrn.edu.ar:20.500.12049/3459
Ver los metadatos del registro completo
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Functional group dominance and identity effects influence the magnitude of grassland invasionLongo, GriselSeidler, Tristram G.Garibaldi, Lucas AlejandroTognetti, Pedro M.Chaneton, Enrique J.BiodiversityBiotic ResistanceInvasion EcologyMass Ratio HypothesisPhenological NichesRank AbundanceRemoval ExperimentSubadditive EffectFil: Longo, Grisel. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina.Fil: Seidler, Tristram G. Harvard Forest; USA.Fil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro. Sede Andina; Argentina.Fil: Tognetti, Pedro M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina.Fil: Chaneton, Enrique J. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina.Fil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Tognetti, Pedro M. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; Argentina.Variation in functional community composition is expected to influence the extent of exotic species invasions. Yet, whether resident functional groups control invasion through their relative biomass (mass ratio hypothesis) or by traits other than biomass (identity hypothesis) remains poorly understood. We performed a 6 year experiment to determine the effects of removing different functional groups on exotic species biomass in a Flooding Pampa grassland, Argentina. Functional groups were defined by life form (grasses or forbs), phenology (winter or summer) and origin (native or exotic). Removal of each functional group was compared against the removal of an equivalent amount of random biomass. Exotic group responses were monitored over 4 years of continuous removals, and after 2 years of recovery without manipulations. Removal of dominant native summer grasses caused the greatest impact on exotic species and overall community composition. Native summer grass removal significantly increased exotic grass (120%) and forb (730%) biomass beyond the level (46% and 180%, respectively) expected from deleting a similar amount of biomass at random. Exotic annual grasses showed only a transient increase, whereas exotic forb invasion persisted even after 2 years without removals. Removing subordinate, native or exotic winter grasses, and rare native forbs significantly promoted exotic forbs, but to the same level (300%) as random biomass removals. Total grass removal increased exotic forbs to half the extent expected from adding the effects of single grass group removals. Dispersal limitation and harsh abiotic conditions may constrain exotic forb spread into such heavily grass depleted patches. Synthesis. The impact of losing a functional group on the magnitude and persistence of invasion reflected its relative contribution to community biomass. Identity attributes other than biomass (e.g. phenological niche) further enhanced the biotic control that dominant native grasses exerted on established exotic species. Our findings highlight the community legacies of past disturbances to dominant functional groups.Wiley Online Library2013-06-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfLongo, Maria G., Seidler, Tristram G., Garibaldi, Lucas A., Tognetti, Pedro M. y Chaneton, Enrique J. (2013). Functional group dominance and identity effects influence the magnitude of grassland invasion. Wiley; Journal of Ecology; 101 (5); 1114-11240022-0477http://onlinelibrary.wiley.com/doi/10.1111/1365-2745.12128/abstracthttp://hdl.handle.net/11336/4258https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3459http://dx.doi.org/10.1111/1365-2745.12128spa101Journal of Ecologyinfo:eu-repo/semantics/restrictedAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-29T14:29:06Zoai:rid.unrn.edu.ar:20.500.12049/3459instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-29 14:29:06.922RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse |
dc.title.none.fl_str_mv |
Functional group dominance and identity effects influence the magnitude of grassland invasion |
title |
Functional group dominance and identity effects influence the magnitude of grassland invasion |
spellingShingle |
Functional group dominance and identity effects influence the magnitude of grassland invasion Longo, Grisel Biodiversity Biotic Resistance Invasion Ecology Mass Ratio Hypothesis Phenological Niches Rank Abundance Removal Experiment Subadditive Effect |
title_short |
Functional group dominance and identity effects influence the magnitude of grassland invasion |
title_full |
Functional group dominance and identity effects influence the magnitude of grassland invasion |
title_fullStr |
Functional group dominance and identity effects influence the magnitude of grassland invasion |
title_full_unstemmed |
Functional group dominance and identity effects influence the magnitude of grassland invasion |
title_sort |
Functional group dominance and identity effects influence the magnitude of grassland invasion |
dc.creator.none.fl_str_mv |
Longo, Grisel Seidler, Tristram G. Garibaldi, Lucas Alejandro Tognetti, Pedro M. Chaneton, Enrique J. |
author |
Longo, Grisel |
author_facet |
Longo, Grisel Seidler, Tristram G. Garibaldi, Lucas Alejandro Tognetti, Pedro M. Chaneton, Enrique J. |
author_role |
author |
author2 |
Seidler, Tristram G. Garibaldi, Lucas Alejandro Tognetti, Pedro M. Chaneton, Enrique J. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Biodiversity Biotic Resistance Invasion Ecology Mass Ratio Hypothesis Phenological Niches Rank Abundance Removal Experiment Subadditive Effect |
topic |
Biodiversity Biotic Resistance Invasion Ecology Mass Ratio Hypothesis Phenological Niches Rank Abundance Removal Experiment Subadditive Effect |
dc.description.none.fl_txt_mv |
Fil: Longo, Grisel. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina. Fil: Seidler, Tristram G. Harvard Forest; USA. Fil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro. Sede Andina; Argentina. Fil: Tognetti, Pedro M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina. Fil: Chaneton, Enrique J. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina. Fil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Tognetti, Pedro M. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; Argentina. Variation in functional community composition is expected to influence the extent of exotic species invasions. Yet, whether resident functional groups control invasion through their relative biomass (mass ratio hypothesis) or by traits other than biomass (identity hypothesis) remains poorly understood. We performed a 6 year experiment to determine the effects of removing different functional groups on exotic species biomass in a Flooding Pampa grassland, Argentina. Functional groups were defined by life form (grasses or forbs), phenology (winter or summer) and origin (native or exotic). Removal of each functional group was compared against the removal of an equivalent amount of random biomass. Exotic group responses were monitored over 4 years of continuous removals, and after 2 years of recovery without manipulations. Removal of dominant native summer grasses caused the greatest impact on exotic species and overall community composition. Native summer grass removal significantly increased exotic grass (120%) and forb (730%) biomass beyond the level (46% and 180%, respectively) expected from deleting a similar amount of biomass at random. Exotic annual grasses showed only a transient increase, whereas exotic forb invasion persisted even after 2 years without removals. Removing subordinate, native or exotic winter grasses, and rare native forbs significantly promoted exotic forbs, but to the same level (300%) as random biomass removals. Total grass removal increased exotic forbs to half the extent expected from adding the effects of single grass group removals. Dispersal limitation and harsh abiotic conditions may constrain exotic forb spread into such heavily grass depleted patches. Synthesis. The impact of losing a functional group on the magnitude and persistence of invasion reflected its relative contribution to community biomass. Identity attributes other than biomass (e.g. phenological niche) further enhanced the biotic control that dominant native grasses exerted on established exotic species. Our findings highlight the community legacies of past disturbances to dominant functional groups. |
description |
Fil: Longo, Grisel. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-06-13 |
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 |
Longo, Maria G., Seidler, Tristram G., Garibaldi, Lucas A., Tognetti, Pedro M. y Chaneton, Enrique J. (2013). Functional group dominance and identity effects influence the magnitude of grassland invasion. Wiley; Journal of Ecology; 101 (5); 1114-1124 0022-0477 http://onlinelibrary.wiley.com/doi/10.1111/1365-2745.12128/abstract http://hdl.handle.net/11336/4258 https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3459 http://dx.doi.org/10.1111/1365-2745.12128 |
identifier_str_mv |
Longo, Maria G., Seidler, Tristram G., Garibaldi, Lucas A., Tognetti, Pedro M. y Chaneton, Enrique J. (2013). Functional group dominance and identity effects influence the magnitude of grassland invasion. Wiley; Journal of Ecology; 101 (5); 1114-1124 0022-0477 |
url |
http://onlinelibrary.wiley.com/doi/10.1111/1365-2745.12128/abstract http://hdl.handle.net/11336/4258 https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3459 http://dx.doi.org/10.1111/1365-2745.12128 |
dc.language.none.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
101 Journal of Ecology |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/4.0/ |
eu_rights_str_mv |
restrictedAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/4.0/ |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley Online Library |
publisher.none.fl_str_mv |
Wiley Online Library |
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rid@unrn.edu.ar |
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