Testing for stationary dynamics in the Barro Colorado Island forest
- Autores
- Cavagna, Andrea; Fort, Hugo; Grigera, Tomás Sebastián
- 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.
Instituto de Física de Líquidos y Sistemas Biológicos - Materia
-
Física
Ecología
Rainforest
Ecosystem dynamics
Fluctuations
Time correlations - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/159775
Ver los metadatos del registro completo
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Testing for stationary dynamics in the Barro Colorado Island forestCavagna, AndreaFort, HugoGrigera, Tomás SebastiánFísicaEcologíaRainforestEcosystem dynamicsFluctuationsTime correlationsWe 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.Instituto de Física de Líquidos y Sistemas Biológicos2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/159775enginfo:eu-repo/semantics/altIdentifier/issn/1470-160Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecolind.2023.109880info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:41:46Zoai:sedici.unlp.edu.ar:10915/159775Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:41:46.796SEDICI (UNLP) - Universidad Nacional de La Platafalse |
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 Física Ecología Rainforest Ecosystem dynamics Fluctuations 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, Tomás Sebastián |
author |
Cavagna, Andrea |
author_facet |
Cavagna, Andrea Fort, Hugo Grigera, Tomás Sebastián |
author_role |
author |
author2 |
Fort, Hugo Grigera, Tomás Sebastián |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Física Ecología Rainforest Ecosystem dynamics Fluctuations Time correlations |
topic |
Física Ecología Rainforest Ecosystem dynamics Fluctuations Time correlations |
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. Instituto de Física de Líquidos y Sistemas Biológicos |
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 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/159775 |
url |
http://sedici.unlp.edu.ar/handle/10915/159775 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/1470-160X info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecolind.2023.109880 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
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application/pdf |
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