Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae)

Autores
Chalcoff, Vanina Ruth; Aizen, Marcelo Adrian; Ezcurra, Cecilia
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Th e limit of a species ’ distribution can be determined biotically if an environmental gradient causes the loss of critical mutualists such as pollinators. We assessed this hypothesis for Embothrium coccineum , a self-incompatible red-fl owered treelet growing along a strong west-east precipitation gradient from rainforest to forest-steppe ecotone in the rain shadow of the southern Andes in northwestern Patagonia. For 16 populations along this gradient, we quantifi ed composition of the pollinator assemblage, pollination effi ciency and limitation, and reproductive output. Th e treelet has a generalized pollination system, but the hummingbird Sephanoides sephaniodes was the most eff ective pollinator. Th e relative importance of this hummingbird as a fl ower visitor within populations infl uenced pollen transfer and fruit set more strongly than local precipitation. As hummingbirds and other pollinators, including passerine birds and nemestrinid fl ies, were replaced by bees towards the dry eastern range limit, pollen limitation increased and reproduction eventually failed. Th ese results support the hypothesis that pollinators can act as important biotic fi lters infl uencing plant distribution, and warn against predictions of geographical range shifts based solely on climatic variables.
Fil: Chalcoff, Vanina Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Aizen, Marcelo Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Ezcurra, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Materia
PLANT-POLLINATOR INTERACTIONS
HUMMINGBIRDS
SPECIES DISTRIBUTION
BIOTIC FILTERS
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:11336/273872
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae)Chalcoff, Vanina RuthAizen, Marcelo AdrianEzcurra, CeciliaPLANT-POLLINATOR INTERACTIONSHUMMINGBIRDSSPECIES DISTRIBUTIONBIOTIC FILTERShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Th e limit of a species ’ distribution can be determined biotically if an environmental gradient causes the loss of critical mutualists such as pollinators. We assessed this hypothesis for Embothrium coccineum , a self-incompatible red-fl owered treelet growing along a strong west-east precipitation gradient from rainforest to forest-steppe ecotone in the rain shadow of the southern Andes in northwestern Patagonia. For 16 populations along this gradient, we quantifi ed composition of the pollinator assemblage, pollination effi ciency and limitation, and reproductive output. Th e treelet has a generalized pollination system, but the hummingbird Sephanoides sephaniodes was the most eff ective pollinator. Th e relative importance of this hummingbird as a fl ower visitor within populations infl uenced pollen transfer and fruit set more strongly than local precipitation. As hummingbirds and other pollinators, including passerine birds and nemestrinid fl ies, were replaced by bees towards the dry eastern range limit, pollen limitation increased and reproduction eventually failed. Th ese results support the hypothesis that pollinators can act as important biotic fi lters infl uencing plant distribution, and warn against predictions of geographical range shifts based solely on climatic variables.Fil: Chalcoff, Vanina Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Aizen, Marcelo Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Ezcurra, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaWiley Blackwell Publishing, Inc2011-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/273872Chalcoff, Vanina Ruth; Aizen, Marcelo Adrian; Ezcurra, Cecilia; Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae); Wiley Blackwell Publishing, Inc; Oikos; 121; 3; 10-2011; 471-4800030-1299CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://nsojournals.onlinelibrary.wiley.com/doi/full/10.1111/j.1600-0706.2011.19663.xinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1600-0706.2011.19663.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-05T09:53:50Zoai:ri.conicet.gov.ar:11336/273872instacron: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:34982025-11-05 09:53:50.337CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae)
title Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae)
spellingShingle Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae)
Chalcoff, Vanina Ruth
PLANT-POLLINATOR INTERACTIONS
HUMMINGBIRDS
SPECIES DISTRIBUTION
BIOTIC FILTERS
title_short Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae)
title_full Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae)
title_fullStr Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae)
title_full_unstemmed Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae)
title_sort Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae)
dc.creator.none.fl_str_mv Chalcoff, Vanina Ruth
Aizen, Marcelo Adrian
Ezcurra, Cecilia
author Chalcoff, Vanina Ruth
author_facet Chalcoff, Vanina Ruth
Aizen, Marcelo Adrian
Ezcurra, Cecilia
author_role author
author2 Aizen, Marcelo Adrian
Ezcurra, Cecilia
author2_role author
author
dc.subject.none.fl_str_mv PLANT-POLLINATOR INTERACTIONS
HUMMINGBIRDS
SPECIES DISTRIBUTION
BIOTIC FILTERS
topic PLANT-POLLINATOR INTERACTIONS
HUMMINGBIRDS
SPECIES DISTRIBUTION
BIOTIC FILTERS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Th e limit of a species ’ distribution can be determined biotically if an environmental gradient causes the loss of critical mutualists such as pollinators. We assessed this hypothesis for Embothrium coccineum , a self-incompatible red-fl owered treelet growing along a strong west-east precipitation gradient from rainforest to forest-steppe ecotone in the rain shadow of the southern Andes in northwestern Patagonia. For 16 populations along this gradient, we quantifi ed composition of the pollinator assemblage, pollination effi ciency and limitation, and reproductive output. Th e treelet has a generalized pollination system, but the hummingbird Sephanoides sephaniodes was the most eff ective pollinator. Th e relative importance of this hummingbird as a fl ower visitor within populations infl uenced pollen transfer and fruit set more strongly than local precipitation. As hummingbirds and other pollinators, including passerine birds and nemestrinid fl ies, were replaced by bees towards the dry eastern range limit, pollen limitation increased and reproduction eventually failed. Th ese results support the hypothesis that pollinators can act as important biotic fi lters infl uencing plant distribution, and warn against predictions of geographical range shifts based solely on climatic variables.
Fil: Chalcoff, Vanina Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Aizen, Marcelo Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Ezcurra, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
description Th e limit of a species ’ distribution can be determined biotically if an environmental gradient causes the loss of critical mutualists such as pollinators. We assessed this hypothesis for Embothrium coccineum , a self-incompatible red-fl owered treelet growing along a strong west-east precipitation gradient from rainforest to forest-steppe ecotone in the rain shadow of the southern Andes in northwestern Patagonia. For 16 populations along this gradient, we quantifi ed composition of the pollinator assemblage, pollination effi ciency and limitation, and reproductive output. Th e treelet has a generalized pollination system, but the hummingbird Sephanoides sephaniodes was the most eff ective pollinator. Th e relative importance of this hummingbird as a fl ower visitor within populations infl uenced pollen transfer and fruit set more strongly than local precipitation. As hummingbirds and other pollinators, including passerine birds and nemestrinid fl ies, were replaced by bees towards the dry eastern range limit, pollen limitation increased and reproduction eventually failed. Th ese results support the hypothesis that pollinators can act as important biotic fi lters infl uencing plant distribution, and warn against predictions of geographical range shifts based solely on climatic variables.
publishDate 2011
dc.date.none.fl_str_mv 2011-10
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/11336/273872
Chalcoff, Vanina Ruth; Aizen, Marcelo Adrian; Ezcurra, Cecilia; Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae); Wiley Blackwell Publishing, Inc; Oikos; 121; 3; 10-2011; 471-480
0030-1299
CONICET Digital
CONICET
url http://hdl.handle.net/11336/273872
identifier_str_mv Chalcoff, Vanina Ruth; Aizen, Marcelo Adrian; Ezcurra, Cecilia; Erosion of a pollination mutualism along an environmental gradient in a south Andean treelet, Embothrium coccineum (Proteaceae); Wiley Blackwell Publishing, Inc; Oikos; 121; 3; 10-2011; 471-480
0030-1299
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://nsojournals.onlinelibrary.wiley.com/doi/full/10.1111/j.1600-0706.2011.19663.x
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1600-0706.2011.19663.x
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
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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 13.084122

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