Drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas
In the context of global change, tropical forests are increasingly affected by fires. Understanding the ecological processes driving forest recovery in fire-modified landscapes is a critical issue. We analyzed spatial and temporal (8 years) changes in functional and phylogenetic composition of tree communities during forest post-fire recovery in anthropogenic savannas. We used null models to infer the main assembly processes driving forest succession along three 90-m transects running from an advancing savanna-forest edge to forest interior in New Caledonia. We also evaluated if successional changes differed between large and small trees, or depended on the demography of remnant savanna trees. We found coordinated shifts from drought- and fire-resistance towards shade-tolerance strategies, involving leaf, stem, and architectural traits along transects. Our results indicate stronger environmental filtering and faster temporal changes in composition of young edge communities. In forest interior, our results suggest slower compositional changes, with an important role of light limitation in community assembly. These non-random patterns depended on both the decline of savanna trees and compositional changes among forest species. We also found contrasting community patterns depending on tree size, supporting a stronger influence of environmental filtering on small trees. Our work emphasized the dominance of deterministic assembly processes driving tropical forest post-fire succession. Our study suggests that fire and drought drive environmental filtering during early succession at the forest edge, entailing constraints on multiple functional dimensions. As succession progresses, light-limitation becomes a stronger driver of community assembly, and community composition becomes more stable in time. Our study provides insights for a better understanding of the processes guiding tropical forest succession in the particular context of post-fire forest recovery.
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Subjects: | F40 - Écologie végétale, K70 - Dégâts causés aux forêts et leur protection, écologie forestière, régénération, communauté végétale, incendie de forêt, savane, succession écologique, écologie du feu, http://aims.fao.org/aos/agrovoc/c_3044, http://aims.fao.org/aos/agrovoc/c_6486, http://aims.fao.org/aos/agrovoc/c_32514, http://aims.fao.org/aos/agrovoc/c_3045, http://aims.fao.org/aos/agrovoc/c_6825, http://aims.fao.org/aos/agrovoc/c_2464, http://aims.fao.org/aos/agrovoc/c_34279, http://aims.fao.org/aos/agrovoc/c_5155, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/599584/ http://agritrop.cirad.fr/599584/13/599584_MAA.pdf |
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dig-cirad-fr-5995842024-01-29T03:51:46Z http://agritrop.cirad.fr/599584/ http://agritrop.cirad.fr/599584/ Drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas. Blanchard Grégoire, Ibanez Thomas, Munoz François, Bruy David, Hély Christelle, Munzinger Jérôme, Birnbaum Philippe. 2021. Perspectives in Plant Ecology, Evolution and Systematics, 52:125630, 14 p.https://doi.org/10.1016/j.ppees.2021.125630 <https://doi.org/10.1016/j.ppees.2021.125630> Drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas Blanchard, Grégoire Ibanez, Thomas Munoz, François Bruy, David Hély, Christelle Munzinger, Jérôme Birnbaum, Philippe eng 2021 Perspectives in Plant Ecology, Evolution and Systematics F40 - Écologie végétale K70 - Dégâts causés aux forêts et leur protection écologie forestière régénération communauté végétale incendie de forêt savane succession écologique écologie du feu http://aims.fao.org/aos/agrovoc/c_3044 http://aims.fao.org/aos/agrovoc/c_6486 http://aims.fao.org/aos/agrovoc/c_32514 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_34279 Nouvelle-Calédonie France http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 In the context of global change, tropical forests are increasingly affected by fires. Understanding the ecological processes driving forest recovery in fire-modified landscapes is a critical issue. We analyzed spatial and temporal (8 years) changes in functional and phylogenetic composition of tree communities during forest post-fire recovery in anthropogenic savannas. We used null models to infer the main assembly processes driving forest succession along three 90-m transects running from an advancing savanna-forest edge to forest interior in New Caledonia. We also evaluated if successional changes differed between large and small trees, or depended on the demography of remnant savanna trees. We found coordinated shifts from drought- and fire-resistance towards shade-tolerance strategies, involving leaf, stem, and architectural traits along transects. Our results indicate stronger environmental filtering and faster temporal changes in composition of young edge communities. In forest interior, our results suggest slower compositional changes, with an important role of light limitation in community assembly. These non-random patterns depended on both the decline of savanna trees and compositional changes among forest species. We also found contrasting community patterns depending on tree size, supporting a stronger influence of environmental filtering on small trees. Our work emphasized the dominance of deterministic assembly processes driving tropical forest post-fire succession. Our study suggests that fire and drought drive environmental filtering during early succession at the forest edge, entailing constraints on multiple functional dimensions. As succession progresses, light-limitation becomes a stronger driver of community assembly, and community composition becomes more stable in time. Our study provides insights for a better understanding of the processes guiding tropical forest succession in the particular context of post-fire forest recovery. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/acceptedVersion http://agritrop.cirad.fr/599584/13/599584_MAA.pdf text cc_by_nc info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc/4.0/ https://doi.org/10.1016/j.ppees.2021.125630 10.1016/j.ppees.2021.125630 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ppees.2021.125630 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.ppees.2021.125630 |
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F40 - Écologie végétale K70 - Dégâts causés aux forêts et leur protection écologie forestière régénération communauté végétale incendie de forêt savane succession écologique écologie du feu http://aims.fao.org/aos/agrovoc/c_3044 http://aims.fao.org/aos/agrovoc/c_6486 http://aims.fao.org/aos/agrovoc/c_32514 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_34279 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 F40 - Écologie végétale K70 - Dégâts causés aux forêts et leur protection écologie forestière régénération communauté végétale incendie de forêt savane succession écologique écologie du feu http://aims.fao.org/aos/agrovoc/c_3044 http://aims.fao.org/aos/agrovoc/c_6486 http://aims.fao.org/aos/agrovoc/c_32514 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_34279 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 |
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F40 - Écologie végétale K70 - Dégâts causés aux forêts et leur protection écologie forestière régénération communauté végétale incendie de forêt savane succession écologique écologie du feu http://aims.fao.org/aos/agrovoc/c_3044 http://aims.fao.org/aos/agrovoc/c_6486 http://aims.fao.org/aos/agrovoc/c_32514 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_34279 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 F40 - Écologie végétale K70 - Dégâts causés aux forêts et leur protection écologie forestière régénération communauté végétale incendie de forêt savane succession écologique écologie du feu http://aims.fao.org/aos/agrovoc/c_3044 http://aims.fao.org/aos/agrovoc/c_6486 http://aims.fao.org/aos/agrovoc/c_32514 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_34279 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 Blanchard, Grégoire Ibanez, Thomas Munoz, François Bruy, David Hély, Christelle Munzinger, Jérôme Birnbaum, Philippe Drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas |
description |
In the context of global change, tropical forests are increasingly affected by fires. Understanding the ecological processes driving forest recovery in fire-modified landscapes is a critical issue. We analyzed spatial and temporal (8 years) changes in functional and phylogenetic composition of tree communities during forest post-fire recovery in anthropogenic savannas. We used null models to infer the main assembly processes driving forest succession along three 90-m transects running from an advancing savanna-forest edge to forest interior in New Caledonia. We also evaluated if successional changes differed between large and small trees, or depended on the demography of remnant savanna trees. We found coordinated shifts from drought- and fire-resistance towards shade-tolerance strategies, involving leaf, stem, and architectural traits along transects. Our results indicate stronger environmental filtering and faster temporal changes in composition of young edge communities. In forest interior, our results suggest slower compositional changes, with an important role of light limitation in community assembly. These non-random patterns depended on both the decline of savanna trees and compositional changes among forest species. We also found contrasting community patterns depending on tree size, supporting a stronger influence of environmental filtering on small trees. Our work emphasized the dominance of deterministic assembly processes driving tropical forest post-fire succession. Our study suggests that fire and drought drive environmental filtering during early succession at the forest edge, entailing constraints on multiple functional dimensions. As succession progresses, light-limitation becomes a stronger driver of community assembly, and community composition becomes more stable in time. Our study provides insights for a better understanding of the processes guiding tropical forest succession in the particular context of post-fire forest recovery. |
format |
article |
topic_facet |
F40 - Écologie végétale K70 - Dégâts causés aux forêts et leur protection écologie forestière régénération communauté végétale incendie de forêt savane succession écologique écologie du feu http://aims.fao.org/aos/agrovoc/c_3044 http://aims.fao.org/aos/agrovoc/c_6486 http://aims.fao.org/aos/agrovoc/c_32514 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_34279 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Blanchard, Grégoire Ibanez, Thomas Munoz, François Bruy, David Hély, Christelle Munzinger, Jérôme Birnbaum, Philippe |
author_facet |
Blanchard, Grégoire Ibanez, Thomas Munoz, François Bruy, David Hély, Christelle Munzinger, Jérôme Birnbaum, Philippe |
author_sort |
Blanchard, Grégoire |
title |
Drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas |
title_short |
Drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas |
title_full |
Drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas |
title_fullStr |
Drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas |
title_full_unstemmed |
Drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas |
title_sort |
drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas |
url |
http://agritrop.cirad.fr/599584/ http://agritrop.cirad.fr/599584/13/599584_MAA.pdf |
work_keys_str_mv |
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_version_ |
1792500254489182208 |