Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records

An improved understanding of present-day climate variability and change relies on high-quality data sets from the past 2 millennia. Global efforts to model regional climate modes are in the process of being validated against, and integrated with, records of past vegetation change. For South America,...

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Autores: Flantua, Suzette G. A., Rull, Valentí, González-Arango, Catalina
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/130090
Acceso en línea:http://hdl.handle.net/10261/130090
Access Level:acceso abierto
Palabra clave:Climate variability
South America
Pollen
http://metadata.un.org/sdg/13
Take urgent action to combat climate change and its impacts
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spelling Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen recordsFlantua, Suzette G. A.Rull, ValentíGonzález-Arango, CatalinaClimate variabilitySouth AmericaPollenhttp://metadata.un.org/sdg/13Take urgent action to combat climate change and its impactsAn improved understanding of present-day climate variability and change relies on high-quality data sets from the past 2 millennia. Global efforts to model regional climate modes are in the process of being validated against, and integrated with, records of past vegetation change. For South America, however, the full potential of vegetation records for evaluating and improving climate models has hitherto not been sufficiently acknowledged due to an absence of information on the spatial and temporal coverage of study sites. This paper therefore serves as a guide to high-quality pollen records that capture environmental variability during the last 2 millennia. We identify 60 vegetation (pollen) records from across South America which satisfy geochronological requirements set out for climate modelling, and we discuss their sensitivity to the spatial signature of climate modes throughout the continent. Diverse patterns of vegetation response to climate change are observed, with more similar patterns of change in the lowlands and varying intensity and direction of responses in the highlands. Pollen records display local-scale responses to climate modes; thus, it is necessary to understand how vegetation-climate interactions might diverge under variable settings. We provide a qualitative translation from pollen metrics to climate variables. Additionally, pollen is an excellent indicator of human impact through time. We discuss evidence for human land use in pollen records and provide an overview considered useful for archaeological hypothesis testing and important in distinguishing natural from anthropogenically driven vegetation change. We stress the need for the palynological community to be more familiar with climate variability patterns to correctly attribute the potential causes of observed vegetation dynamics. This manuscript forms part of the wider LOng-Term multi-proxy climate REconstructions and Dynamics in South America - 2k initiative that provides the ideal framework for the integration of the various palaeoclimatic subdisciplines and palaeo-science, thereby jump-starting and fostering multidisciplinary research into environmental change on centennial and millennial timescales.We thank the Netherlands Organization for Scientific Research (NWO, grant 2012/13248/ALW) for financial support for the project of Suzette Flantua. We are grateful for the support provided to Mathias Vuille by NSF-P2C2 (AGS-1303828) and to Encarni Montoya by the NERC fellowship (NE/J018562/1). Isabel Hoyos is supported by the USAID-NSF PEER program, project 31, and CODI Universidad de Antioquia.Peer reviewedCopernicus PublicationsNetherlands Organization for Scientific ResearchConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201620162016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/130090reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.5194/cp-12-483-2016Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1300902026-05-22T06:33:51Z
dc.title.none.fl_str_mv Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records
title Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records
spellingShingle Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records
Flantua, Suzette G. A.
Climate variability
South America
Pollen
http://metadata.un.org/sdg/13
Take urgent action to combat climate change and its impacts
title_short Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records
title_full Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records
title_fullStr Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records
title_full_unstemmed Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records
title_sort Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records
dc.creator.none.fl_str_mv Flantua, Suzette G. A.
Rull, Valentí
González-Arango, Catalina
author Flantua, Suzette G. A.
author_facet Flantua, Suzette G. A.
Rull, Valentí
González-Arango, Catalina
author_role author
author2 Rull, Valentí
González-Arango, Catalina
author2_role author
author
dc.contributor.none.fl_str_mv Netherlands Organization for Scientific Research
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Climate variability
South America
Pollen
http://metadata.un.org/sdg/13
Take urgent action to combat climate change and its impacts
topic Climate variability
South America
Pollen
http://metadata.un.org/sdg/13
Take urgent action to combat climate change and its impacts
description An improved understanding of present-day climate variability and change relies on high-quality data sets from the past 2 millennia. Global efforts to model regional climate modes are in the process of being validated against, and integrated with, records of past vegetation change. For South America, however, the full potential of vegetation records for evaluating and improving climate models has hitherto not been sufficiently acknowledged due to an absence of information on the spatial and temporal coverage of study sites. This paper therefore serves as a guide to high-quality pollen records that capture environmental variability during the last 2 millennia. We identify 60 vegetation (pollen) records from across South America which satisfy geochronological requirements set out for climate modelling, and we discuss their sensitivity to the spatial signature of climate modes throughout the continent. Diverse patterns of vegetation response to climate change are observed, with more similar patterns of change in the lowlands and varying intensity and direction of responses in the highlands. Pollen records display local-scale responses to climate modes; thus, it is necessary to understand how vegetation-climate interactions might diverge under variable settings. We provide a qualitative translation from pollen metrics to climate variables. Additionally, pollen is an excellent indicator of human impact through time. We discuss evidence for human land use in pollen records and provide an overview considered useful for archaeological hypothesis testing and important in distinguishing natural from anthropogenically driven vegetation change. We stress the need for the palynological community to be more familiar with climate variability patterns to correctly attribute the potential causes of observed vegetation dynamics. This manuscript forms part of the wider LOng-Term multi-proxy climate REconstructions and Dynamics in South America - 2k initiative that provides the ideal framework for the integration of the various palaeoclimatic subdisciplines and palaeo-science, thereby jump-starting and fostering multidisciplinary research into environmental change on centennial and millennial timescales.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/130090
url http://hdl.handle.net/10261/130090
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.5194/cp-12-483-2016
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Copernicus Publications
publisher.none.fl_str_mv Copernicus Publications
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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