Disturbance regimes drive the diversity of regional floristic pools across Guianan rainforest landscapes
Disturbances control rainforest dynamics, and, according to the intermediate disturbance hypothesis (IDH), disturbance regime is a key driver of local diversity. Variations in disturbance regimes and their consequences on regional diversity at broad spatiotemporal scales are still poorly understood. Using multidisciplinary large-scale inventories and LiDAR acquisitions, we developed a robust indicator of disturbance regimes based on the frequency of a few early successional and widely distributed pioneer species. We demonstrate at the landscape scale that tree-species diversity and disturbance regimes vary with climate and relief. Significant relationships between the disturbance indicator, tree-species diversity and soil phosphorus content agree with the hypothesis that rainforest diversity is controlled both by disturbance regimes and long-term ecosystem stability. These effects explain the broad-scale patterns of floristic diversity observed between landscapes. In fact, species-rich forests in highlands, which have benefited from long-term stability combined with a moderate and regular regime of local disturbances, contrast with less diversified forests on recently shaped lowlands, which have undergone more recent changes and irregular dynamics. These results suggest that taking the current disturbance regime into account and including geomorphological stratifications in climate-vegetation models may be an effective way to improve the prediction of changes in species diversity under climate change.
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dig-cirad-fr-5874132024-01-29T00:55:05Z http://agritrop.cirad.fr/587413/ http://agritrop.cirad.fr/587413/ Disturbance regimes drive the diversity of regional floristic pools across Guianan rainforest landscapes. Guitet Stéphane, Sabatier Damien, Brunaux Olivier, Couteron Pierre, Denis Thomas, Freycon Vincent, Gonzalez Sophie, Herault Bruno, Jaouen Gaëlle, Molino Jean-François, Pélissier Raphaël, Richard-Hansen Cécile, Vincent Grégoire. 2018. Scientific Reports, 8:3872, 12 p.https://doi.org/10.1038/s41598-018-22209-9 <https://doi.org/10.1038/s41598-018-22209-9> Disturbance regimes drive the diversity of regional floristic pools across Guianan rainforest landscapes Guitet, Stéphane Sabatier, Damien Brunaux, Olivier Couteron, Pierre Denis, Thomas Freycon, Vincent Gonzalez, Sophie Herault, Bruno Jaouen, Gaëlle Molino, Jean-François Pélissier, Raphaël Richard-Hansen, Cécile Vincent, Grégoire eng 2018 Scientific Reports K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie U30 - Méthodes de recherche P40 - Météorologie et climatologie forêt tropicale humide forêt biodiversité composition botanique flore altitude pluviométrie géomorphologie inventaire forestier continu télédétection inventaire forestier écosystème forestier facteur climatique facteur édaphique http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_2983 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_29572 http://aims.fao.org/aos/agrovoc/c_3233 http://aims.fao.org/aos/agrovoc/c_1374156575504 http://aims.fao.org/aos/agrovoc/c_6498 http://aims.fao.org/aos/agrovoc/c_24174 http://aims.fao.org/aos/agrovoc/c_1374842133961 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_15617 Guyane française France http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 Disturbances control rainforest dynamics, and, according to the intermediate disturbance hypothesis (IDH), disturbance regime is a key driver of local diversity. Variations in disturbance regimes and their consequences on regional diversity at broad spatiotemporal scales are still poorly understood. Using multidisciplinary large-scale inventories and LiDAR acquisitions, we developed a robust indicator of disturbance regimes based on the frequency of a few early successional and widely distributed pioneer species. We demonstrate at the landscape scale that tree-species diversity and disturbance regimes vary with climate and relief. Significant relationships between the disturbance indicator, tree-species diversity and soil phosphorus content agree with the hypothesis that rainforest diversity is controlled both by disturbance regimes and long-term ecosystem stability. These effects explain the broad-scale patterns of floristic diversity observed between landscapes. In fact, species-rich forests in highlands, which have benefited from long-term stability combined with a moderate and regular regime of local disturbances, contrast with less diversified forests on recently shaped lowlands, which have undergone more recent changes and irregular dynamics. These results suggest that taking the current disturbance regime into account and including geomorphological stratifications in climate-vegetation models may be an effective way to improve the prediction of changes in species diversity under climate change. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/587413/1/Guitet%20et%20al.%202018%20Scientific_Reports.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1038/s41598-018-22209-9 10.1038/s41598-018-22209-9 info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-018-22209-9 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1038/s41598-018-22209-9 |
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K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie U30 - Méthodes de recherche P40 - Météorologie et climatologie forêt tropicale humide forêt biodiversité composition botanique flore altitude pluviométrie géomorphologie inventaire forestier continu télédétection inventaire forestier écosystème forestier facteur climatique facteur édaphique http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_2983 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_29572 http://aims.fao.org/aos/agrovoc/c_3233 http://aims.fao.org/aos/agrovoc/c_1374156575504 http://aims.fao.org/aos/agrovoc/c_6498 http://aims.fao.org/aos/agrovoc/c_24174 http://aims.fao.org/aos/agrovoc/c_1374842133961 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_15617 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie U30 - Méthodes de recherche P40 - Météorologie et climatologie forêt tropicale humide forêt biodiversité composition botanique flore altitude pluviométrie géomorphologie inventaire forestier continu télédétection inventaire forestier écosystème forestier facteur climatique facteur édaphique http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_2983 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_29572 http://aims.fao.org/aos/agrovoc/c_3233 http://aims.fao.org/aos/agrovoc/c_1374156575504 http://aims.fao.org/aos/agrovoc/c_6498 http://aims.fao.org/aos/agrovoc/c_24174 http://aims.fao.org/aos/agrovoc/c_1374842133961 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_15617 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 |
spellingShingle |
K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie U30 - Méthodes de recherche P40 - Météorologie et climatologie forêt tropicale humide forêt biodiversité composition botanique flore altitude pluviométrie géomorphologie inventaire forestier continu télédétection inventaire forestier écosystème forestier facteur climatique facteur édaphique http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_2983 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_29572 http://aims.fao.org/aos/agrovoc/c_3233 http://aims.fao.org/aos/agrovoc/c_1374156575504 http://aims.fao.org/aos/agrovoc/c_6498 http://aims.fao.org/aos/agrovoc/c_24174 http://aims.fao.org/aos/agrovoc/c_1374842133961 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_15617 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie U30 - Méthodes de recherche P40 - Météorologie et climatologie forêt tropicale humide forêt biodiversité composition botanique flore altitude pluviométrie géomorphologie inventaire forestier continu télédétection inventaire forestier écosystème forestier facteur climatique facteur édaphique http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_2983 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_29572 http://aims.fao.org/aos/agrovoc/c_3233 http://aims.fao.org/aos/agrovoc/c_1374156575504 http://aims.fao.org/aos/agrovoc/c_6498 http://aims.fao.org/aos/agrovoc/c_24174 http://aims.fao.org/aos/agrovoc/c_1374842133961 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_15617 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 Guitet, Stéphane Sabatier, Damien Brunaux, Olivier Couteron, Pierre Denis, Thomas Freycon, Vincent Gonzalez, Sophie Herault, Bruno Jaouen, Gaëlle Molino, Jean-François Pélissier, Raphaël Richard-Hansen, Cécile Vincent, Grégoire Disturbance regimes drive the diversity of regional floristic pools across Guianan rainforest landscapes |
description |
Disturbances control rainforest dynamics, and, according to the intermediate disturbance hypothesis (IDH), disturbance regime is a key driver of local diversity. Variations in disturbance regimes and their consequences on regional diversity at broad spatiotemporal scales are still poorly understood. Using multidisciplinary large-scale inventories and LiDAR acquisitions, we developed a robust indicator of disturbance regimes based on the frequency of a few early successional and widely distributed pioneer species. We demonstrate at the landscape scale that tree-species diversity and disturbance regimes vary with climate and relief. Significant relationships between the disturbance indicator, tree-species diversity and soil phosphorus content agree with the hypothesis that rainforest diversity is controlled both by disturbance regimes and long-term ecosystem stability. These effects explain the broad-scale patterns of floristic diversity observed between landscapes. In fact, species-rich forests in highlands, which have benefited from long-term stability combined with a moderate and regular regime of local disturbances, contrast with less diversified forests on recently shaped lowlands, which have undergone more recent changes and irregular dynamics. These results suggest that taking the current disturbance regime into account and including geomorphological stratifications in climate-vegetation models may be an effective way to improve the prediction of changes in species diversity under climate change. |
format |
article |
topic_facet |
K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie U30 - Méthodes de recherche P40 - Météorologie et climatologie forêt tropicale humide forêt biodiversité composition botanique flore altitude pluviométrie géomorphologie inventaire forestier continu télédétection inventaire forestier écosystème forestier facteur climatique facteur édaphique http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_2983 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_29572 http://aims.fao.org/aos/agrovoc/c_3233 http://aims.fao.org/aos/agrovoc/c_1374156575504 http://aims.fao.org/aos/agrovoc/c_6498 http://aims.fao.org/aos/agrovoc/c_24174 http://aims.fao.org/aos/agrovoc/c_1374842133961 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_15617 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Guitet, Stéphane Sabatier, Damien Brunaux, Olivier Couteron, Pierre Denis, Thomas Freycon, Vincent Gonzalez, Sophie Herault, Bruno Jaouen, Gaëlle Molino, Jean-François Pélissier, Raphaël Richard-Hansen, Cécile Vincent, Grégoire |
author_facet |
Guitet, Stéphane Sabatier, Damien Brunaux, Olivier Couteron, Pierre Denis, Thomas Freycon, Vincent Gonzalez, Sophie Herault, Bruno Jaouen, Gaëlle Molino, Jean-François Pélissier, Raphaël Richard-Hansen, Cécile Vincent, Grégoire |
author_sort |
Guitet, Stéphane |
title |
Disturbance regimes drive the diversity of regional floristic pools across Guianan rainforest landscapes |
title_short |
Disturbance regimes drive the diversity of regional floristic pools across Guianan rainforest landscapes |
title_full |
Disturbance regimes drive the diversity of regional floristic pools across Guianan rainforest landscapes |
title_fullStr |
Disturbance regimes drive the diversity of regional floristic pools across Guianan rainforest landscapes |
title_full_unstemmed |
Disturbance regimes drive the diversity of regional floristic pools across Guianan rainforest landscapes |
title_sort |
disturbance regimes drive the diversity of regional floristic pools across guianan rainforest landscapes |
url |
http://agritrop.cirad.fr/587413/ http://agritrop.cirad.fr/587413/1/Guitet%20et%20al.%202018%20Scientific_Reports.pdf |
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