Linked canopy, climate, and faunal change in the Cenozoic of Patagonia

Autores
Dunn, Regan E.; Strömberg, Caroline A. E.; Madden, Richard R.; Khon, Matthew J.; Carlini, Alfredo Armando
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Vegetation structure is a key determinant of ecosystems and ecosystem function, but paleoecological techniques to quantify it are lacking. We present a method for reconstructing leaf area index (LAI) based on light-dependent morphology of leaf epidermal cells and phytoliths derived from them. Using this proxy, we reconstruct LAI for the Cenozoic (49 million to 11 million years ago) of middle-latitude Patagonia. Our record shows that dense forests opened up by the late Eocene; open forests and shrubland habitats then fluctuated, with a brief middle-Miocene regreening period. Furthermore, endemic herbivorous mammals show accelerated tooth crown height evolution during open, yet relatively grass-free, shrubland habitat intervals. Our Patagonian LAI record provides a high-resolution, sensitive tool with which to dissect terrestrial ecosystem response to changing Southern Ocean conditions during the Cenozoic.
Fil: Dunn, Regan E.. University of Washington; Estados Unidos
Fil: Strömberg, Caroline A. E.. University of Washington; Estados Unidos
Fil: Madden, Richard R.. University Of Chicago; Estados Unidos
Fil: Khon, Matthew J.. Boise State University; Estados Unidos
Fil: Carlini, Alfredo Armando. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Palaeoclima
Faunal Change
Tertiary
Patagonia
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:11336/13778
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Linked canopy, climate, and faunal change in the Cenozoic of PatagoniaDunn, Regan E.Strömberg, Caroline A. E.Madden, Richard R.Khon, Matthew J.Carlini, Alfredo ArmandoPalaeoclimaFaunal ChangeTertiaryPatagoniahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Vegetation structure is a key determinant of ecosystems and ecosystem function, but paleoecological techniques to quantify it are lacking. We present a method for reconstructing leaf area index (LAI) based on light-dependent morphology of leaf epidermal cells and phytoliths derived from them. Using this proxy, we reconstruct LAI for the Cenozoic (49 million to 11 million years ago) of middle-latitude Patagonia. Our record shows that dense forests opened up by the late Eocene; open forests and shrubland habitats then fluctuated, with a brief middle-Miocene regreening period. Furthermore, endemic herbivorous mammals show accelerated tooth crown height evolution during open, yet relatively grass-free, shrubland habitat intervals. Our Patagonian LAI record provides a high-resolution, sensitive tool with which to dissect terrestrial ecosystem response to changing Southern Ocean conditions during the Cenozoic.Fil: Dunn, Regan E.. University of Washington; Estados UnidosFil: Strömberg, Caroline A. E.. University of Washington; Estados UnidosFil: Madden, Richard R.. University Of Chicago; Estados UnidosFil: Khon, Matthew J.. Boise State University; Estados UnidosFil: Carlini, Alfredo Armando. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaAmerican Association For The Advancement Of Science2015-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/13778Dunn, Regan E.; Strömberg, Caroline A. E.; Madden, Richard R.; Khon, Matthew J.; Carlini, Alfredo Armando; Linked canopy, climate, and faunal change in the Cenozoic of Patagonia; American Association For The Advancement Of Science; Science; 347; 6219; 1-2015; 258-2611095-9203enginfo:eu-repo/semantics/altIdentifier/doi/10.1126/science.1260947info:eu-repo/semantics/altIdentifier/url/http://science.sciencemag.org/content/347/6219/258info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:58:28Zoai:ri.conicet.gov.ar:11336/13778instacron: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:34982025-11-12 09:58:29.05CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Linked canopy, climate, and faunal change in the Cenozoic of Patagonia
title Linked canopy, climate, and faunal change in the Cenozoic of Patagonia
spellingShingle Linked canopy, climate, and faunal change in the Cenozoic of Patagonia
Dunn, Regan E.
Palaeoclima
Faunal Change
Tertiary
Patagonia
title_short Linked canopy, climate, and faunal change in the Cenozoic of Patagonia
title_full Linked canopy, climate, and faunal change in the Cenozoic of Patagonia
title_fullStr Linked canopy, climate, and faunal change in the Cenozoic of Patagonia
title_full_unstemmed Linked canopy, climate, and faunal change in the Cenozoic of Patagonia
title_sort Linked canopy, climate, and faunal change in the Cenozoic of Patagonia
dc.creator.none.fl_str_mv Dunn, Regan E.
Strömberg, Caroline A. E.
Madden, Richard R.
Khon, Matthew J.
Carlini, Alfredo Armando
author Dunn, Regan E.
author_facet Dunn, Regan E.
Strömberg, Caroline A. E.
Madden, Richard R.
Khon, Matthew J.
Carlini, Alfredo Armando
author_role author
author2 Strömberg, Caroline A. E.
Madden, Richard R.
Khon, Matthew J.
Carlini, Alfredo Armando
author2_role author
author
author
author
dc.subject.none.fl_str_mv Palaeoclima
Faunal Change
Tertiary
Patagonia
topic Palaeoclima
Faunal Change
Tertiary
Patagonia
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Vegetation structure is a key determinant of ecosystems and ecosystem function, but paleoecological techniques to quantify it are lacking. We present a method for reconstructing leaf area index (LAI) based on light-dependent morphology of leaf epidermal cells and phytoliths derived from them. Using this proxy, we reconstruct LAI for the Cenozoic (49 million to 11 million years ago) of middle-latitude Patagonia. Our record shows that dense forests opened up by the late Eocene; open forests and shrubland habitats then fluctuated, with a brief middle-Miocene regreening period. Furthermore, endemic herbivorous mammals show accelerated tooth crown height evolution during open, yet relatively grass-free, shrubland habitat intervals. Our Patagonian LAI record provides a high-resolution, sensitive tool with which to dissect terrestrial ecosystem response to changing Southern Ocean conditions during the Cenozoic.
Fil: Dunn, Regan E.. University of Washington; Estados Unidos
Fil: Strömberg, Caroline A. E.. University of Washington; Estados Unidos
Fil: Madden, Richard R.. University Of Chicago; Estados Unidos
Fil: Khon, Matthew J.. Boise State University; Estados Unidos
Fil: Carlini, Alfredo Armando. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Vegetation structure is a key determinant of ecosystems and ecosystem function, but paleoecological techniques to quantify it are lacking. We present a method for reconstructing leaf area index (LAI) based on light-dependent morphology of leaf epidermal cells and phytoliths derived from them. Using this proxy, we reconstruct LAI for the Cenozoic (49 million to 11 million years ago) of middle-latitude Patagonia. Our record shows that dense forests opened up by the late Eocene; open forests and shrubland habitats then fluctuated, with a brief middle-Miocene regreening period. Furthermore, endemic herbivorous mammals show accelerated tooth crown height evolution during open, yet relatively grass-free, shrubland habitat intervals. Our Patagonian LAI record provides a high-resolution, sensitive tool with which to dissect terrestrial ecosystem response to changing Southern Ocean conditions during the Cenozoic.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
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/11336/13778
Dunn, Regan E.; Strömberg, Caroline A. E.; Madden, Richard R.; Khon, Matthew J.; Carlini, Alfredo Armando; Linked canopy, climate, and faunal change in the Cenozoic of Patagonia; American Association For The Advancement Of Science; Science; 347; 6219; 1-2015; 258-261
1095-9203
url http://hdl.handle.net/11336/13778
identifier_str_mv Dunn, Regan E.; Strömberg, Caroline A. E.; Madden, Richard R.; Khon, Matthew J.; Carlini, Alfredo Armando; Linked canopy, climate, and faunal change in the Cenozoic of Patagonia; American Association For The Advancement Of Science; Science; 347; 6219; 1-2015; 258-261
1095-9203
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1126/science.1260947
info:eu-repo/semantics/altIdentifier/url/http://science.sciencemag.org/content/347/6219/258
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 American Association For The Advancement Of Science
publisher.none.fl_str_mv American Association For The Advancement Of Science
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 13.24909

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