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6 results on '"Keppel, Gunnar"'

1. Evenness mediates the global relationship between forest productivity and richness

Author

Hordijk, Iris, primary, Maynard, Daniel S., additional, Hart, Simon P., additional, Lidong, Mo, additional, ter Steege, Hans, additional, Liang, Jingjing, additional, de‐Miguel, Sergio, additional, Nabuurs, Gert‐Jan, additional, Reich, Peter B., additional, Abegg, Meinrad, additional, Adou Yao, C. Yves, additional, Alberti, Giorgio, additional, Almeyda Zambrano, Angelica M., additional, Alvarado, Braulio V., additional, Esteban, Alvarez‐Davila, additional, Alvarez‐Loayza, Patricia, additional, Alves, Luciana F., additional, Ammer, Christian, additional, Antón‐Fernández, Clara, additional, Araujo‐Murakami, Alejandro, additional, Arroyo, Luzmila, additional, Avitabile, Valerio, additional, Aymard C, Gerardo A., additional, Baker, Timothy, additional, Bałazy, Radomir, additional, Banki, Olaf, additional, Barroso, Jorcely, additional, Bastian, Meredith L., additional, Bastin, Jean‐Francois, additional, Birigazzi, Luca, additional, Birnbaum, Philippe, additional, Bitariho, Robert, additional, Boeckx, Pascal, additional, Bongers, Frans, additional, Bouriaud, Olivier, additional, Brancalion, Pedro H. S., additional, Brandl, Susanne, additional, Brienen, Roel, additional, Broadbent, Eben N., additional, Bruelheide, Helge, additional, Bussotti, Filippo, additional, Cazzolla Gatti, Roberto, additional, César, Ricardo G., additional, Cesljar, Goran, additional, Chazdon, Robin, additional, Chen, Han Y. H., additional, Chisholm, Chelsea, additional, Cienciala, Emil, additional, Clark, Connie J., additional, Clark, David B., additional, Colletta, Gabriel, additional, Coomes, David, additional, Cornejo Valverde, Fernando, additional, Corral‐Rivas, Jose J., additional, Crim, Philip, additional, Cumming, Jonathan, additional, Dayanandan, Selvadurai, additional, de Gasper, André L., additional, Decuyper, Mathieu, additional, Derroire, Géraldine, additional, DeVries, Ben, additional, Djordjevic, Ilija, additional, Iêda, Amaral, additional, Dourdain, Aurélie, additional, Nestor Laurier, Engone Obiang, additional, Enquist, Brian, additional, Eyre, Teresa, additional, Fandohan, Adandé Belarmain, additional, Fayle, Tom M., additional, Ferreira, Leandro V., additional, Feldpausch, Ted R., additional, Finér, Leena, additional, Fischer, Markus, additional, Fletcher, Christine, additional, Frizzera, Lorenzo, additional, Gamarra, Javier G. P., additional, Gianelle, Damiano, additional, Glick, Henry B., additional, Harris, David, additional, Hector, Andrew, additional, Hemp, Andreas, additional, Hengeveld, Geerten, additional, Hérault, Bruno, additional, Herbohn, John, additional, Hillers, Annika, additional, Honorio Coronado, Eurídice N., additional, Hui, Cang, additional, Cho, Hyunkook, additional, Ibanez, Thomas, additional, Bin Jung, Il, additional, Imai, Nobuo, additional, Jagodzinski, Andrzej M., additional, Jaroszewicz, Bogdan, additional, Johanssen, Vivian, additional, Joly, Carlos A., additional, Jucker, Tommaso, additional, Karminov, Viktor, additional, Kartawinata, Kuswata, additional, Kearsley, Elizabeth, additional, Kenfack, David, additional, Kennard, Deborah, additional, Kepfer‐Rojas, Sebastian, additional, Keppel, Gunnar, additional, Khan, Mohammed Latif, additional, Killeen, Timothy, additional, Kim, Hyun Seok, additional, Kitayama, Kanehiro, additional, Köhl, Michael, additional, Korjus, Henn, additional, Kraxner, Florian, additional, Laarmann, Diana, additional, Lang, Mait, additional, Lewis, Simon, additional, Lu, Huicui, additional, Lukina, Natalia, additional, Maitner, Brian, additional, Malhi, Yadvinder, additional, Marcon, Eric, additional, Marimon, Beatriz Schwantes, additional, Marimon‐Junior, Ben Hur, additional, Marshall, Andrew Robert, additional, Martin, Emanuel, additional, Martynenko, Olga, additional, Meave, Jorge A., additional, Melo‐Cruz, Omar, additional, Mendoza, Casimiro, additional, Merow, Cory, additional, Miscicki, Stanislaw, additional, Mendoza, Abel Monteagudo, additional, Moreno, Vanessa, additional, Mukul, Sharif A., additional, Mundhenk, Philip, additional, Nava‐Miranda, Maria G., additional, Neill, David, additional, Neldner, Victor, additional, Nevenic, Radovan, additional, Ngugi, Michael, additional, Niklaus, Pascal A., additional, Oleksyn, Jacek, additional, Ontikov, Petr, additional, Ortiz‐Malavasi, Edgar, additional, Pan, Yude, additional, Paquette, Alain, additional, Parada‐Gutierrez, Alexander, additional, Parfenova, Elena, additional, Park, Minjee, additional, Parren, Marc, additional, Parthasarathy, Narayanaswamy, additional, Peri, Pablo L., additional, Pfautsch, Sebastian, additional, Phillips, Oliver L., additional, Picard, Nicolas, additional, Piedade, Maria Teresa, additional, Piotto, Daniel, additional, Pitman, Nigel C. A., additional, Polo, Irina, additional, Poorter, Lourens, additional, Poulsen, Axel Dalberg, additional, Poulsen, John R., additional, Pretzsch, Hans, additional, Ramirez Arevalo, Freddy, additional, Restrepo‐Correa, Zorayda, additional, Rodeghiero, Mirco, additional, Rolim, Samir, additional, Roopsind, Anand, additional, Rovero, Francesco, additional, Rutishauser, Ervan, additional, Saikia, Purabi, additional, Salas‐Eljatib, Christian, additional, Schall, Peter, additional, Schepaschenko, Dmitry, additional, Scherer‐Lorenzen, Michael, additional, Schmid, Bernhard, additional, Schöngart, Jochen, additional, Searle, Eric B., additional, Šebeň, Vladimír, additional, Serra‐Diaz, Josep M., additional, Sheil, Douglas, additional, Shvidenko, Anatoly, additional, Silva‐Espejo, Javier, additional, Silveira, Marcos, additional, Singh, James, additional, Sist, Plinio, additional, Slik, Ferry, additional, Sonké, Bonaventure, additional, Souza, Alexandre F., additional, Stereńczak, Krzysztof, additional, Svenning, Jens‐Christian, additional, Svoboda, Miroslav, additional, Swanepoel, Ben, additional, Targhetta, Natalia, additional, Tchebakova, Nadja, additional, Thomas, Raquel, additional, Tikhonova, Elena, additional, Umunay, Peter, additional, Usoltsev, Vladimir, additional, Valencia, Renato, additional, Valladares, Fernando, additional, van der Plas, Fons, additional, Tran, Do Van, additional, Van Nuland, Michael E., additional, Vasquez Martinez, Rodolfo, additional, Verbeeck, Hans, additional, Viana, Helder, additional, Vibrans, Alexander C., additional, Vieira, Simone, additional, von Gadow, Klaus, additional, Wang, Hua‐Feng, additional, Watson, James, additional, Werner, Gijsbert D. A., additional, Wiser, Susan K., additional, Wittmann, Florian, additional, Wortel, Verginia, additional, Zagt, Roderick, additional, Zawila‐Niedzwiecki, Tomasz, additional, Zhang, Chunyu, additional, Zhao, Xiuhai, additional, Zhou, Mo, additional, Zhu, Zhi‐Xin, additional, Zo‐Bi, Irie Casimir, additional, and Crowther, Thomas W., additional

Published
2023
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4. Globally consistent impact of tropical cyclones on the structure of tropical and subtropical forests.

Author

Ibanez, Thomas, Keppel, Gunnar, Menkes, Christophe, Gillespie, Thomas W., Lengaigne, Matthieu, Mangeas, Morgan, Rivas-Torres, Gonzalo, Birnbaum, Philippe, and Lines, Emily

Subjects
*TROPICAL cyclones, *TROPICAL forests, *TYPHOONS, *DEFOLIATION, *CLIMATE change
Abstract

Tropical cyclones (TCs) are large‐scale disturbances that regularly impact tropical forests. Although long‐term impacts of TCs on forest structure have been proposed, a global test of the relationship between forest structure and TC frequency and intensity is lacking. We test on a pantropical scale whether TCs shape the structure of tropical and subtropical forests in the long term.We compiled forest structural features (stem density, basal area, mean canopy height and maximum tree size) for plants ≥10 cm in diameter at breast height from published forest inventory data (438 plots ≥0.1 ha, pooled into 250 1 × 1‐degree grid cells) located in dry and humid forests. We computed maps of cyclone frequency and energy released by cyclones per unit area (power dissipation index, PDI) using a high‐resolution historical database of TCs trajectories and intensities. We then tested the relationship between PDI and forest structural features using multivariate linear models, controlling for climate (mean annual temperature and water availability) and human disturbance (human foot print).Forests subject to frequent cyclones (at least one TCs per decade) and high PDI exhibited higher stem density and basal area, and lower canopy heights. However, the relationships between PDI and basal area or canopy height were partially masked by lower water availability and higher human foot print in tropical dry forests.Synthesis. Our results provide the first evidence that tropical cyclones have a long‐term impact on the structure of tropical and subtropical forests in a globally consistent way. The strong relationship between power dissipation index and stem density suggests that frequent and intense tropical cyclones reduce canopy cover through defoliation and tree mortality, encouraging higher regeneration and turnover of biomass. The projected increase in intensity and poleward extension of tropical cyclones due to anthropogenic climate change may therefore have important and lasting impacts on the structure and dynamics of forests in the future. We show that tropical cyclones have a long‐term impact on the structure of tropical and subtropical forests in a globally consistent way. Forests subject to frequent and intense cyclones exhibit higher stem density and lower canopy heights. The projected changes in tropical cyclone regime may therefore have important and lasting impacts on the structure of forests in the future. [ABSTRACT FROM AUTHOR]

Published
2019
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6. Globally consistent impact of tropical cyclones on the structure of tropical and subtropical forests

Author

Gunnar Keppel, Thomas W. Gillespie, Matthieu Lengaigne, Thomas Ibanez, Morgan Mangeas, Philippe Birnbaum, Christophe E. Menkès, Gonzalo Rivas-Torres, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Institut Agronomique Néo-Calédonien (IAC), University of Göttingen, University of Göttigen, University of South Australia [Adelaide], Processus et interactions de fine échelle océanique (PROTEO), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Department of Geography, Escuela Militar de Ingeniería (EMI), University of California [Los Angeles] (UCLA), University of California, Océan et variabilité du climat (VARCLIM), Institut de Recherche pour le Développement (IRD [Nouvelle-Calédonie]), UMR 228 Espace-Dev, Espace pour le développement, Université des Antilles (UA)-Université de Guyane (UG)-Université de Montpellier (UM)-Université de La Réunion (UR)-Avignon Université (AU)-Université de Perpignan Via Domitia (UPVD)-Institut de Recherche pour le Développement (IRD), Universidad San Francisco de Quito (EQUATEUR), Agency for Economic and Environmental Development (DDEE) of the North Province of New Caledonia, Alexander von Humboldt fellowship, Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD [France-Sud]), Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU), Université de Guyane (UG)-Université des Antilles (UA)-Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM), Ibanez, Thomas, Keppel, Gunnar, Menkes, Christophe, Gillespie, Thomas W., Lengaigne, Matthieu, Mangeas, Morgan, Rivas-Torres, Gonzalo, Birnbaum, Philippe, Georg-August-University = Georg-August-Universität Göttingen, Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), University of California (UC), Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Université de Guyane (UG)-Université des Antilles (UA), and Universidad San Francisco de Quito (USFQ)

Subjects
0106 biological sciences, Canopy, Canopy height, Tropical dry forest, Plant Science, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, Atmospheric sciences, 01 natural sciences, Basal area, K01 - Foresterie - Considérations générales, Régénération, Forêt tropicale humide, Tropical humid forest, tropical humid forest, Ecology, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, Cyclone, basal area, Typhoon, power dissipation index, Tropical cyclone, Tropical and subtropical dry broadleaf forests, canopy height, P40 - Météorologie et climatologie, Subtropics, Catastrophe naturelle, Mortalité, 010603 evolutionary biology, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, stem density, surface terrière, Ecology, Evolution, Behavior and Systematics, Changement climatique, Stem density, Forest inventory, 15. Life on land, Ouragan, Hurricanes, 13. Climate action, tropical dry forest, Environmental science, Couvert forestier, hurricanes, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, typhoons, 010606 plant biology & botany
Abstract

Tropical cyclones (TCs) are large‐scale disturbances that regularly impact tropical forests. Although long‐term impacts of TCs on forest structure have been proposed,a global test of the relationship between forest structure and TC frequency and intensity is lacking. We test on a pantropical scale whether TCs shape the structure of tropical and subtropical forests in the long term. We compiled forest structural features (stem density, basal area, mean canopy height and maximum tree size) for plants ≥10 cm in diameter at breast height from published forest inventory data (438 plots ≥0.1 ha, pooled into 250 1 × 1‐degree grid cells) located in dry and humid forests. We computed maps of cyclone frequency and energy released by cyclones per unit area (power dissipation index,PDI) using a high‐resolution historical database of TCs trajectories and intensities.We then tested the relationship between PDI and forest structural features using multivariate linear models, controlling for climate (mean annual temperature and water availability) and human disturbance (human foot print). Forests subject to frequent cyclones (at least one TCs per decade) and high PDI exhibited higher stem density and basal area, and lower canopy heights. However,the relationships between PDI and basal area or canopy height were partially masked by lower water availability and higher human foot print in tropical dry forests. Synthesis. Our results provide the first evidence that tropical cyclones have a long term impact on the structure of tropical and subtropical forests in a globally consistent way. The strong relationship between power dissipation index and stem density suggests that frequent and intense tropical cyclones reduce canopy cover through defoliation and tree mortality, encouraging higher regeneration and turnover of biomass. The projected increase in intensity and pole ward extension of tropical cyclones due to anthropogenic climate change may therefore have important and lasting impacts on the structure and dynamics of forests in the future. Refereed/Peer-reviewed

Published
2018

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