30 Years of postdisturbance recruitment in a Neotropical forest

Abstract Questions Long‐term community response to disturbance can follow manifold successional pathways depending on the interplay between various recruitment processes. Analyzing the succession of recruited communities provides a long‐term perspective on forest response to disturbance. Specificall...

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Autores principales:	Ariane Mirabel, Eric Marcon, Bruno Hérault
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	community composition community diversity disturbance response functional trait Neotropical forests postdisturbance recovery Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/b2f21b4d22524461ad1d7fb3be46258a
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spelling	oai:doaj.org-article:b2f21b4d22524461ad1d7fb3be46258a2021-11-08T17:10:40Z30 Years of postdisturbance recruitment in a Neotropical forest2045-775810.1002/ece3.7634https://doaj.org/article/b2f21b4d22524461ad1d7fb3be46258a2021-11-01T00:00:00Zhttps://doi.org/10.1002/ece3.7634https://doaj.org/toc/2045-7758Abstract Questions Long‐term community response to disturbance can follow manifold successional pathways depending on the interplay between various recruitment processes. Analyzing the succession of recruited communities provides a long‐term perspective on forest response to disturbance. Specifically, postdisturbance recruitment trajectories assess (a) the successive phases of postdisturbance response and the role of deterministic recruitment processes, and (b) the return to predisturbance state of recruits taxonomic/functional diversity/composition. Location Amazonian rainforest, Paracou station, French Guiana. Methods We analyzed trajectories of recruited tree communities, from twelve forest plots of 6.25 ha each, during 30 years following a disturbance gradient that ranged from 10% to 60% of aboveground biomass removed. We measured recruited community taxonomic composition turnover, compared to whole predisturbance community, and assessed their functional composition by measuring the community weighted means for seven leaf, stem, and life‐history functional traits. We also measured recruited community taxonomic richness, taxonomic evenness, and functional diversity and compared them to the diversity values from a random recruitment process. Results While control plots trajectories resembled random recruitment trajectories, postdisturbance trajectories diverged significantly. This divergence corresponded to an enhanced recruitment of light‐demanding species that became dominant above a disturbance intensity threshold. After breakpoints in time, though, recruitment trajectories returned to diversity values and composition similar to those of predisturbance and control plots community. Conclusions Following disturbance, recruitment processes specific to undisturbed community were first replaced by the emergence of more restricted, deterministic recruitment processes favoring species with efficient light use and acquisition. Then, a second phase corresponded to a decades‐long recovery of recruits predisturbance taxonomic and functional diversity and composition that remained unachieved after 30 years.Ariane MirabelEric MarconBruno HéraultWileyarticlecommunity compositioncommunity diversitydisturbance responsefunctional traitNeotropical forestspostdisturbance recoveryEcologyQH540-549.5ENEcology and Evolution, Vol 11, Iss 21, Pp 14448-14458 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	community composition community diversity disturbance response functional trait Neotropical forests postdisturbance recovery Ecology QH540-549.5
spellingShingle	community composition community diversity disturbance response functional trait Neotropical forests postdisturbance recovery Ecology QH540-549.5 Ariane Mirabel Eric Marcon Bruno Hérault 30 Years of postdisturbance recruitment in a Neotropical forest
description	Abstract Questions Long‐term community response to disturbance can follow manifold successional pathways depending on the interplay between various recruitment processes. Analyzing the succession of recruited communities provides a long‐term perspective on forest response to disturbance. Specifically, postdisturbance recruitment trajectories assess (a) the successive phases of postdisturbance response and the role of deterministic recruitment processes, and (b) the return to predisturbance state of recruits taxonomic/functional diversity/composition. Location Amazonian rainforest, Paracou station, French Guiana. Methods We analyzed trajectories of recruited tree communities, from twelve forest plots of 6.25 ha each, during 30 years following a disturbance gradient that ranged from 10% to 60% of aboveground biomass removed. We measured recruited community taxonomic composition turnover, compared to whole predisturbance community, and assessed their functional composition by measuring the community weighted means for seven leaf, stem, and life‐history functional traits. We also measured recruited community taxonomic richness, taxonomic evenness, and functional diversity and compared them to the diversity values from a random recruitment process. Results While control plots trajectories resembled random recruitment trajectories, postdisturbance trajectories diverged significantly. This divergence corresponded to an enhanced recruitment of light‐demanding species that became dominant above a disturbance intensity threshold. After breakpoints in time, though, recruitment trajectories returned to diversity values and composition similar to those of predisturbance and control plots community. Conclusions Following disturbance, recruitment processes specific to undisturbed community were first replaced by the emergence of more restricted, deterministic recruitment processes favoring species with efficient light use and acquisition. Then, a second phase corresponded to a decades‐long recovery of recruits predisturbance taxonomic and functional diversity and composition that remained unachieved after 30 years.
format	article
author	Ariane Mirabel Eric Marcon Bruno Hérault
author_facet	Ariane Mirabel Eric Marcon Bruno Hérault
author_sort	Ariane Mirabel
title	30 Years of postdisturbance recruitment in a Neotropical forest
title_short	30 Years of postdisturbance recruitment in a Neotropical forest
title_full	30 Years of postdisturbance recruitment in a Neotropical forest
title_fullStr	30 Years of postdisturbance recruitment in a Neotropical forest
title_full_unstemmed	30 Years of postdisturbance recruitment in a Neotropical forest
title_sort	30 years of postdisturbance recruitment in a neotropical forest
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/b2f21b4d22524461ad1d7fb3be46258a
work_keys_str_mv	AT arianemirabel 30yearsofpostdisturbancerecruitmentinaneotropicalforest AT ericmarcon 30yearsofpostdisturbancerecruitmentinaneotropicalforest AT brunoherault 30yearsofpostdisturbancerecruitmentinaneotropicalforest
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30 Years of postdisturbance recruitment in a Neotropical forest

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