Science 2011 Feb;331(6017):554
School of Geography, University of Leeds, Leeds LS2 9JT, UK.
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Science 2009 Mar;323(5919):1344-7
Ecology and Global Change, School of Geography, University of Leeds, Leeds LS2 9JT, UK.
Amazon forests are a key but poorly understood component of the global carbon cycle. If, as anticipated, they dry this century, they might accelerate climate change through carbon losses and changed surface energy balances. We used records from multiple long-term monitoring plots across Amazonia to assess forest responses to the intense 2005 drought, a possible analog of future events. Read More
New Phytol 2010 Aug;187(3):631-46
Ecology and Global Change, School of Geography, University of Leeds, Leeds, UK.
*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. Read More
Ecology 2007 Sep;88(9):2259-69
Woods Hole Research Center, 149 Woods Hole Road, Falmouth, Massachusetts 02540-1644, USA.
Severe drought episodes such as those associated with El Niño Southern Oscillation (ENSO) events influence large areas of tropical forest and may become more frequent in the future. One of the most important forest responses to severe drought is tree mortality, which alters forest structure, composition, carbon content, and flammability, and which varies widely. This study tests the hypothesis that tree mortality increases abruptly during drought episodes when plant-available soil water (PAW) declines below a critical minimum threshold. Read More
New Phytol 2010 Aug 9;187(3):579-91. Epub 2010 Jun 9.
Universidade Federal do Pará, Centro de Geociências, Belém, Pará, Brazil.
*At least one climate model predicts severe reductions of rainfall over Amazonia during this century. Long-term throughfall exclusion (TFE) experiments represent the best available means to investigate the resilience of the Amazon rainforest to such droughts. *Results are presented from a 7 yr TFE study at Caxiuanã National Forest, eastern Amazonia. Read More