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Title: Late twentieth-century patterns and trends in Amazon tree turnover
Authors: Phillips, Oliver L.
Baker, Timothy R.
Arroyo, Luzmila P.
Higuchi, Niro
Killeen, Timothy J.
Laurance, William F.
Lewis, Simon L.
Lloyd, Jon
Malhi, Yadvinder Singh
Monteagudo, Abel Lorenzo
Neill, David A.
Vargas, Percy Núñez
Silva, Javier Natalino M.
Martínez, Rodolfo Vásquez
Alexiades, Miguel N.
Almeida, Samuel Miranda
Brown, Sandra L.
Chave, Jérôme
Comiskey, James A.
Czimczik, Claudia I.
Di Fiore, Anthony
Erwin, Terry L.
Kuebler, Caroline
Laurance, Susan G.W.
Nascimento, Henrique Eduardo Mendonça
Olivier, Jean
Palacios, Walter A.
Patiño, Sandra
Pitman, Nigel C.A.
Quesada, Carlos Alberto
Saldias, Mario
Lezama, Armando Torres
Vinceti, Barbara
Issue Date: 2007
metadata.dc.publisher.journal: Tropical Forests and Global Atmospheric Change
Abstract: Previous work found that tree turnover, biomass, and large liana densities increased in mature tropical forests in the late 20th century, indicating a concerted shift in forest ecological processes. However, the findings have proved controversial. Here, regional-scale patterns of tree turnover are characterized, using improved datasets available for Amazonia that span the last twenty-five years. The main findings include: trees at least 10 cm in diameter recruit and die twice as fast on the richer soils of western Amazonia compared to trees on the poorer soils of eastern Amazonia; turnover rates have increased throughout Amazonia over the last two decades; mortality and recruitment rates have tended to increase in every region and environmental zone; recruitment rates consistently exceed mortality rates; and increases in recruitment and mortality rates are greatest in western Amazonia. These patterns and trends are not caused by obvious artefacts in the data or the analyses, and cannot be directly driven by a mortality driver such as increased drought because the biomass in these forests has simultaneously increased. Apparently, therefore, widespread environmental changes are stimulating the growth and productivity of Amazon forests. © The Royal Society 2005. All rights reserved.
metadata.dc.identifier.doi: 10.1093/acprof:oso/9780198567066.003.0010
Appears in Collections:Capítulo de Livro

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