Drought-mortality relationships for tropical forests

*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 assem...

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Veröffentlicht in:	The New phytologist. - 1990. - 187(2010), 3 vom: 01. Aug., Seite 631-46
1. Verfasser:	Phillips, Oliver L (VerfasserIn)
Weitere Verfasser:	van der Heijden, Geertje, Lewis, Simon L, López-González, Gabriela, Aragão, Luiz E O C, Lloyd, Jon, Malhi, Yadvinder, Monteagudo, Abel, Almeida, Samuel, Dávila, Esteban Alvarez, Amaral, Iêda, Andelman, Sandy, Andrade, Ana, Arroyo, Luzmila, Aymard, Gerardo, Baker, Tim R, Blanc, Lilian, Bonal, Damien, de Oliveira, Atila Cristina Alves, Chao, Kuo-Jung, Cardozo, Nallaret Dávila, da Costa, Lola, Feldpausch, Ted R, Fisher, Joshua B, Fyllas, Nikolaos M, Freitas, Maria Aparecida, Galbraith, David, Gloor, Emanuel, Higuchi, Niro, Honorio, Eurídice, Jiménez, Eliana, Keeling, Helen, Killeen, Tim J, Lovett, Jon C, Meir, Patrick, Mendoza, Casimiro, Morel, Alexandra, Vargas, Percy Núñez, Patiño, Sandra, Peh, Kelvin S-H, Cruz, Antonio Peña, Prieto, Adriana, Quesada, Carlos A, Ramírez, Fredy, Ramírez, Hirma, Rudas, Agustín, Salamão, Rafael, Schwarz, Michael, Silva, Javier, Silveira, Marcos, Slik, J W Ferry, Sonké, Bonaventure, Thomas, Anne Sota, Stropp, Juliana, Taplin, James R D, Vásquez, Rodolfo, Vilanova, Emilio
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2010
Zugriff auf das übergeordnete Werk:	The New phytologist
Schlagworte:	Journal Article Research Support, Non-U.S. Gov't Water 059QF0KO0R

Beschreibung
Zusammenfassung:	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
Beschreibung:	Date Completed 28.10.2010 Date Revised 09.03.2022 published: Print Citation Status MEDLINE
ISSN:	1469-8137
DOI:	10.1111/j.1469-8137.2010.03359.x