Drought-mortality relationships for tropical forests

Phillips Oliver L., Van Der Heijden Geertje, Lewis Simon L., Lopez-Gonzalez Gabriela, Aragao Luiz E.O.C., Lloyd Jon, Malhi Yadvinder, Monteagudo Abel, Almeida Samuel, Alvarez Davila Esteban, Amaral Iêda Leão, Andelman Sandy, Andrade Ana, Arroyo Luzmila, Aymard Gerardo A., Baker Timothy R., Blanc Lilian, Bonal Damien, Alves de Oliveira Atila Cristina, Kuo-Jung Chao, Davila Cardozo Nallaret, Da Costa Lola, Feldpausch Ted R., Fisher Joshua B., Fyllas Nikolaos M., Aparecida Freitas Maria, Galbraith David, Gloor Emanuel, Higuchi Niro, Honorio Euridice, Jimenez Eliana, Keeling Helen, Killeen Timothy J., Lovett Jon C., Meir Patrick, Mendoza Casimiro, Morel Alexandra, Nuñez Vargas Percy, Patiño Sandra, Peh Kelvin S.H., Peña Cruz Antonio, Prieto Adriana, Quesada Carlos Alberto, Ramirez Fredy, Ramirez Hirma, Rudas Agustin, Salamão Rafael, Schwarz Michael, Silva Javier, Silveira Marcos, Ferry Slik J.W., Sonké Bonaventure, Sota Thomas Anne, Stropp Juliana, Taplin James R.D., Vasquez Rodolfo, Vilanova Emilio. 2010. Drought-mortality relationships for tropical forests. New Phytologist, 187 (3) : 631-646.

Quartile : Outlier, Sujet : PLANT SCIENCES

Résumé : The rich ecology of tropical forests is intimately tied to their moisture status. Multi-site syntheses can provide a macro-scale view of these linkages and their susceptibility to changing climates. Here, we report pan-tropical and regional-scale analyses of tree vulnerability to drought. We assembled available data on tropical forest tree stem mortality before, during, and after recent drought events, from 119 monitoring plots in 10 countries concentrated in Amazonia and Borneo. In most sites, larger trees are disproportionately at risk. At least within Amazonia, low wood density trees are also at greater risk of drought-associated mortality, independent of size. For comparable drought intensities, trees in Borneo are more vulnerable than trees in the Amazon. There is some evidence for lagged impacts of drought, with mortality rates remaining elevated 2 yr after the meteorological event is over. These findings indicate that repeated droughts would shift the functional composition of tropical forests toward smaller, denser-wooded trees. At very high drought intensities, the linear relationship between tree mortality and moisture stress apparently breaks down, suggesting the existence of moisture stress thresholds beyond which some tropical forests would suffer catastrophic tree mortality.

Mots-clés Agrovoc : forêt tropicale humide, résistance à la sécheresse, arbre

Mots-clés géographiques Agrovoc : Indonésie, Amazonie, Bornéo

Classification Agris : F62 - Physiologie végétale - Croissance et développement
H50 - Troubles divers des plantes
K01 - Foresterie - Considérations générales

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

• Phillips Oliver L., University of Leeds (GBR)
• Van Der Heijden Geertje, University of Leeds (GBR)
• Lewis Simon L., University of Leeds (GBR)
• Lopez-Gonzalez Gabriela, University of Leeds (GBR)
• Aragao Luiz E.O.C., OUCE (GBR)
• Lloyd Jon, University of Leeds (GBR)
• Malhi Yadvinder, OUCE (GBR)
• Monteagudo Abel, Jardin Botanico de Missouri (PER)
• Almeida Samuel, MPEG (BRA)
• Alvarez Davila Esteban, Universidad Nacional de Colombia (COL)
• Amaral Iêda Leão, INPA (BRA)
• Andelman Sandy, TEAM (USA)
• Andrade Ana, INPA (BRA)
• Arroyo Luzmila, Museo de Historia Natural Noel Kempff Mercado (BOL)
• Aymard Gerardo A., Universidad Nacional Experimental de Los Llanos Occidentales Ezequiel Zamora (VEN)
• Baker Timothy R., University of Leeds (GBR)
• Blanc Lilian, CIRAD-ES-UMR Ecofog (GUF) ORCID: 0000-0003-3605-4230
• Bonal Damien, INRA (GUF)
• Alves de Oliveira Atila Cristina, INPA (BRA)
• Kuo-Jung Chao, University of Leeds (GBR)
• Davila Cardozo Nallaret, Universidad Nacional de la Amazonia Peruana (PER)
• Da Costa Lola, UFPA (BRA)
• Feldpausch Ted R., University of Leeds (GBR)
• Fisher Joshua B., OUCE (GBR)
• Fyllas Nikolaos M., University of Leeds (GBR)
• Aparecida Freitas Maria, MPEG (BRA)
• Galbraith David, University of Edinburgh (GBR)
• Gloor Emanuel, University of Leeds (GBR)
• Higuchi Niro, INPA (BRA)
• Honorio Euridice, University of Leeds (GBR)
• Jimenez Eliana, Universidad Nacional de Colombia (COL)
• Keeling Helen, University of Leeds (GBR)
• Killeen Timothy J., Museo de Historia Natural Noel Kempff Mercado (BOL)
• Lovett Jon C., University of York (GBR)
• Meir Patrick, University of Edinburgh (GBR)
• Mendoza Casimiro, Manejo Forestal en las Tierras Tropicales de Bolivia (BOL)
• Morel Alexandra, OUCE (GBR)
• Nuñez Vargas Percy, Universidad Nacional San Antonio Abad del Cusco (PER)
• Patiño Sandra, University of Leeds (GBR)
• Peh Kelvin S.H., University of Leeds (GBR)
• Peña Cruz Antonio, Jardin Botanico de Missouri (PER)
• Prieto Adriana, Instituto Alexander von Humboldt (COL)
• Quesada Carlos Alberto, University of Leeds (GBR)
• Ramirez Fredy, Universidad Nacional de la Amazonia Peruana (PER)
• Ramirez Hirma, ULA (VEN)
• Rudas Agustin, Universidad Nacional de Colombia (COL)
• Salamão Rafael, Instituto Alexander von Humboldt (COL)
• Schwarz Michael, University of Leeds (GBR)
• Silva Javier, Universidad Nacional San Antonio Abad del Cusco (PER)
• Silveira Marcos, UFAC (BRA)
• Ferry Slik J.W., CAS (CHN)
• Sonké Bonaventure, Université de Yaoundé (CMR)
• Sota Thomas Anne, Humboldt Universität zu Berlin (DEU)
• Stropp Juliana, Utrecht University (NLD)
• Taplin James R.D., University of York (GBR)
• Vasquez Rodolfo, Jardin Botanico de Missouri (PER)
• Vilanova Emilio, ULA (VEN)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/555899/)

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