Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia

Autores
Lescano, María Natalia; Farji Brener, Alejandro Gustavo; Gianoli, E.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Ant-aphid relationships provide excellent opportunities to study how changes in resource availability may affect the outcome of competitive interactions. Variations in soil fertility may affect host plant quality, with concomitant effects on aphid abundance and the amount/ quality of aphid honeydew. This may determine the intensity at which tending ants defend aphids against natural enemies and competing ants. In a shrub-steppe of northern Patagonia, aphid-infested thistles naturally grow on contrasting fertility substrates: organic waste piles of leafcutting ants (refuse dumps) and nutrient-poor steppe soils. Thistles growing on refuse dumps have much larger aphid colonies than thistles growing on steppe soils. We took advantage of the co-occurrence in the field of plants with contrasting aphid density to study the effect of natural variation in food availability (aphid density) on aphidtending ant species richness and agonistic interactions among them. Enhanced aphid density did not promote the coexistence of aphid-tending ant species. Although all ant species are potential colonizers of the study plants, thistles were often monopolized by a single ant species, regardless of aphid density. Field experiments showed that increased aphid density did not modify aggressiveness toward an intruder ant, nor the probability of coexistence between two rival ant species after the invasion of a host plant. We discuss several hypotheses to explain why increased resource availability does not necessarily reduce competitive interactions in ant-aphid relationships.
Fil: Lescano, María Natalia. 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: Farji Brener, Alejandro Gustavo. 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: Gianoli, E.. Universidad de Concepcion. Facultad de Cs Naturales y Oceanografia. Departamento de Botanica. Lab de Ecologia Funcional; Chile. Universidad de la Serena; Chile
Materia
Agressive Behaviour
Ant Communities
Competitive Interactions
Resource Availability
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/12125
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern PatagoniaLescano, María NataliaFarji Brener, Alejandro GustavoGianoli, E.Agressive BehaviourAnt CommunitiesCompetitive InteractionsResource Availabilityhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Ant-aphid relationships provide excellent opportunities to study how changes in resource availability may affect the outcome of competitive interactions. Variations in soil fertility may affect host plant quality, with concomitant effects on aphid abundance and the amount/ quality of aphid honeydew. This may determine the intensity at which tending ants defend aphids against natural enemies and competing ants. In a shrub-steppe of northern Patagonia, aphid-infested thistles naturally grow on contrasting fertility substrates: organic waste piles of leafcutting ants (refuse dumps) and nutrient-poor steppe soils. Thistles growing on refuse dumps have much larger aphid colonies than thistles growing on steppe soils. We took advantage of the co-occurrence in the field of plants with contrasting aphid density to study the effect of natural variation in food availability (aphid density) on aphidtending ant species richness and agonistic interactions among them. Enhanced aphid density did not promote the coexistence of aphid-tending ant species. Although all ant species are potential colonizers of the study plants, thistles were often monopolized by a single ant species, regardless of aphid density. Field experiments showed that increased aphid density did not modify aggressiveness toward an intruder ant, nor the probability of coexistence between two rival ant species after the invasion of a host plant. We discuss several hypotheses to explain why increased resource availability does not necessarily reduce competitive interactions in ant-aphid relationships.Fil: Lescano, María Natalia. 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: Farji Brener, Alejandro Gustavo. 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: Gianoli, E.. Universidad de Concepcion. Facultad de Cs Naturales y Oceanografia. Departamento de Botanica. Lab de Ecologia Funcional; Chile. Universidad de la Serena; ChileSpringer2015-05info: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/11336/12125Lescano, María Natalia; Farji Brener, Alejandro Gustavo; Gianoli, E.; Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia; Springer; Insectes Sociaux; 62; 2; 5-2015; 199-2050020-18121420-9098enginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s00040-015-0393-7info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00040-015-0393-7info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:37:40Zoai:ri.conicet.gov.ar:11336/12125instacron: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:34982025-10-22 11:37:41.085CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia
title Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia
spellingShingle Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia
Lescano, María Natalia
Agressive Behaviour
Ant Communities
Competitive Interactions
Resource Availability
title_short Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia
title_full Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia
title_fullStr Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia
title_full_unstemmed Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia
title_sort Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia
dc.creator.none.fl_str_mv Lescano, María Natalia
Farji Brener, Alejandro Gustavo
Gianoli, E.
author Lescano, María Natalia
author_facet Lescano, María Natalia
Farji Brener, Alejandro Gustavo
Gianoli, E.
author_role author
author2 Farji Brener, Alejandro Gustavo
Gianoli, E.
author2_role author
author
dc.subject.none.fl_str_mv Agressive Behaviour
Ant Communities
Competitive Interactions
Resource Availability
topic Agressive Behaviour
Ant Communities
Competitive Interactions
Resource Availability
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Ant-aphid relationships provide excellent opportunities to study how changes in resource availability may affect the outcome of competitive interactions. Variations in soil fertility may affect host plant quality, with concomitant effects on aphid abundance and the amount/ quality of aphid honeydew. This may determine the intensity at which tending ants defend aphids against natural enemies and competing ants. In a shrub-steppe of northern Patagonia, aphid-infested thistles naturally grow on contrasting fertility substrates: organic waste piles of leafcutting ants (refuse dumps) and nutrient-poor steppe soils. Thistles growing on refuse dumps have much larger aphid colonies than thistles growing on steppe soils. We took advantage of the co-occurrence in the field of plants with contrasting aphid density to study the effect of natural variation in food availability (aphid density) on aphidtending ant species richness and agonistic interactions among them. Enhanced aphid density did not promote the coexistence of aphid-tending ant species. Although all ant species are potential colonizers of the study plants, thistles were often monopolized by a single ant species, regardless of aphid density. Field experiments showed that increased aphid density did not modify aggressiveness toward an intruder ant, nor the probability of coexistence between two rival ant species after the invasion of a host plant. We discuss several hypotheses to explain why increased resource availability does not necessarily reduce competitive interactions in ant-aphid relationships.
Fil: Lescano, María Natalia. 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: Farji Brener, Alejandro Gustavo. 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: Gianoli, E.. Universidad de Concepcion. Facultad de Cs Naturales y Oceanografia. Departamento de Botanica. Lab de Ecologia Funcional; Chile. Universidad de la Serena; Chile
description Ant-aphid relationships provide excellent opportunities to study how changes in resource availability may affect the outcome of competitive interactions. Variations in soil fertility may affect host plant quality, with concomitant effects on aphid abundance and the amount/ quality of aphid honeydew. This may determine the intensity at which tending ants defend aphids against natural enemies and competing ants. In a shrub-steppe of northern Patagonia, aphid-infested thistles naturally grow on contrasting fertility substrates: organic waste piles of leafcutting ants (refuse dumps) and nutrient-poor steppe soils. Thistles growing on refuse dumps have much larger aphid colonies than thistles growing on steppe soils. We took advantage of the co-occurrence in the field of plants with contrasting aphid density to study the effect of natural variation in food availability (aphid density) on aphidtending ant species richness and agonistic interactions among them. Enhanced aphid density did not promote the coexistence of aphid-tending ant species. Although all ant species are potential colonizers of the study plants, thistles were often monopolized by a single ant species, regardless of aphid density. Field experiments showed that increased aphid density did not modify aggressiveness toward an intruder ant, nor the probability of coexistence between two rival ant species after the invasion of a host plant. We discuss several hypotheses to explain why increased resource availability does not necessarily reduce competitive interactions in ant-aphid relationships.
publishDate 2015
dc.date.none.fl_str_mv 2015-05
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/11336/12125
Lescano, María Natalia; Farji Brener, Alejandro Gustavo; Gianoli, E.; Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia; Springer; Insectes Sociaux; 62; 2; 5-2015; 199-205
0020-1812
1420-9098
url http://hdl.handle.net/11336/12125
identifier_str_mv Lescano, María Natalia; Farji Brener, Alejandro Gustavo; Gianoli, E.; Outcomes of competitive interactions after a natural increment of resources: the assemblage of aphid-tending ants in northern Patagonia; Springer; Insectes Sociaux; 62; 2; 5-2015; 199-205
0020-1812
1420-9098
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s00040-015-0393-7
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00040-015-0393-7
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
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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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score 12.982451

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