Testing for stationary dynamics in the Barro Colorado Island forest

Autores
Cavagna, Andrea; Fort, Hugo; Grigera, Tomas Sebastian
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyse population dynamics in Barro Colorado Island (Panama) using census data of a 50 ha forest plot spanning 35 years, and address the question whether this community is in a stationary state. Individual species abundances show large fluctuations, but assessing stationariety requires discriminating random fluctuations from actual trends. This requires evaluating mean quantities as well as the structure (i.e. the correlations) of the fluctuations around this mean. We argue that a species average is the best surrogate for the theoretically required but unfeasible history average. We define the overlap, a species-averaged measure of composition similarity, which reveals that the BCI population dynamics is stationary but not static, displaying fluctuations with a characteristic time of around 15 years, two orders of magnitude less than previously estimated.
Fil: Cavagna, Andrea. Consiglio Nazionale delle Ricerche; Italia. Università degli studi di Roma "La Sapienza"; Italia
Fil: Fort, Hugo. Universidad de la Republica Instituto de Fisica; Uruguay
Fil: Grigera, Tomas Sebastian. Consiglio Nazionale delle Ricerche; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina
Materia
ECOSYSTEM DYNAMICS
FLUCTUATIONS
RAINFOREST
TIME CORRELATIONS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/230389
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Testing for stationary dynamics in the Barro Colorado Island forestCavagna, AndreaFort, HugoGrigera, Tomas SebastianECOSYSTEM DYNAMICSFLUCTUATIONSRAINFORESTTIME CORRELATIONShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We analyse population dynamics in Barro Colorado Island (Panama) using census data of a 50 ha forest plot spanning 35 years, and address the question whether this community is in a stationary state. Individual species abundances show large fluctuations, but assessing stationariety requires discriminating random fluctuations from actual trends. This requires evaluating mean quantities as well as the structure (i.e. the correlations) of the fluctuations around this mean. We argue that a species average is the best surrogate for the theoretically required but unfeasible history average. We define the overlap, a species-averaged measure of composition similarity, which reveals that the BCI population dynamics is stationary but not static, displaying fluctuations with a characteristic time of around 15 years, two orders of magnitude less than previously estimated.Fil: Cavagna, Andrea. Consiglio Nazionale delle Ricerche; Italia. Università degli studi di Roma "La Sapienza"; ItaliaFil: Fort, Hugo. Universidad de la Republica Instituto de Fisica; UruguayFil: Grigera, Tomas Sebastian. Consiglio Nazionale delle Ricerche; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; ArgentinaElsevier Science2023-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/230389Cavagna, Andrea; Fort, Hugo; Grigera, Tomas Sebastian; Testing for stationary dynamics in the Barro Colorado Island forest; Elsevier Science; Ecological Indicators; 146; 109880; 2-2023; 1-81470-160XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1470160X23000225info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecolind.2023.109880info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:18:23Zoai:ri.conicet.gov.ar:11336/230389instacron: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 11:18:24.098CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Testing for stationary dynamics in the Barro Colorado Island forest
title Testing for stationary dynamics in the Barro Colorado Island forest
spellingShingle Testing for stationary dynamics in the Barro Colorado Island forest
Cavagna, Andrea
ECOSYSTEM DYNAMICS
FLUCTUATIONS
RAINFOREST
TIME CORRELATIONS
title_short Testing for stationary dynamics in the Barro Colorado Island forest
title_full Testing for stationary dynamics in the Barro Colorado Island forest
title_fullStr Testing for stationary dynamics in the Barro Colorado Island forest
title_full_unstemmed Testing for stationary dynamics in the Barro Colorado Island forest
title_sort Testing for stationary dynamics in the Barro Colorado Island forest
dc.creator.none.fl_str_mv Cavagna, Andrea
Fort, Hugo
Grigera, Tomas Sebastian
author Cavagna, Andrea
author_facet Cavagna, Andrea
Fort, Hugo
Grigera, Tomas Sebastian
author_role author
author2 Fort, Hugo
Grigera, Tomas Sebastian
author2_role author
author
dc.subject.none.fl_str_mv ECOSYSTEM DYNAMICS
FLUCTUATIONS
RAINFOREST
TIME CORRELATIONS
topic ECOSYSTEM DYNAMICS
FLUCTUATIONS
RAINFOREST
TIME CORRELATIONS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We analyse population dynamics in Barro Colorado Island (Panama) using census data of a 50 ha forest plot spanning 35 years, and address the question whether this community is in a stationary state. Individual species abundances show large fluctuations, but assessing stationariety requires discriminating random fluctuations from actual trends. This requires evaluating mean quantities as well as the structure (i.e. the correlations) of the fluctuations around this mean. We argue that a species average is the best surrogate for the theoretically required but unfeasible history average. We define the overlap, a species-averaged measure of composition similarity, which reveals that the BCI population dynamics is stationary but not static, displaying fluctuations with a characteristic time of around 15 years, two orders of magnitude less than previously estimated.
Fil: Cavagna, Andrea. Consiglio Nazionale delle Ricerche; Italia. Università degli studi di Roma "La Sapienza"; Italia
Fil: Fort, Hugo. Universidad de la Republica Instituto de Fisica; Uruguay
Fil: Grigera, Tomas Sebastian. Consiglio Nazionale delle Ricerche; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina
description We analyse population dynamics in Barro Colorado Island (Panama) using census data of a 50 ha forest plot spanning 35 years, and address the question whether this community is in a stationary state. Individual species abundances show large fluctuations, but assessing stationariety requires discriminating random fluctuations from actual trends. This requires evaluating mean quantities as well as the structure (i.e. the correlations) of the fluctuations around this mean. We argue that a species average is the best surrogate for the theoretically required but unfeasible history average. We define the overlap, a species-averaged measure of composition similarity, which reveals that the BCI population dynamics is stationary but not static, displaying fluctuations with a characteristic time of around 15 years, two orders of magnitude less than previously estimated.
publishDate 2023
dc.date.none.fl_str_mv 2023-02
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/11336/230389
Cavagna, Andrea; Fort, Hugo; Grigera, Tomas Sebastian; Testing for stationary dynamics in the Barro Colorado Island forest; Elsevier Science; Ecological Indicators; 146; 109880; 2-2023; 1-8
1470-160X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/230389
identifier_str_mv Cavagna, Andrea; Fort, Hugo; Grigera, Tomas Sebastian; Testing for stationary dynamics in the Barro Colorado Island forest; Elsevier Science; Ecological Indicators; 146; 109880; 2-2023; 1-8
1470-160X
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://www.sciencedirect.com/science/article/pii/S1470160X23000225
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecolind.2023.109880
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier 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 12.982451

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