Título:	Basin-wide variation in tree hydraulic safety margins predicts the carbon balance of Amazon forests.
Autoria:	TAVARES, J. V. OLIVEIRA, R. S. MENCUCCINI, M. SIGNORI-MÜLLER , C. PEREIRA, L. DINIZ, F. C. GILPIN, M. ZEVALLOS, M. J. M. SALAS YUPAYCCANA, C. A. ACOSTA, M. PÉREZ MULLISACA, F. M. BARROS, F. de V. BITTENCOURT, P. JANCOSKI, H. SCALON, M. C. MARIMON, B. S. MENOR, I. O. MARIMON JUNIOR, B. H. FANCOURT, M. CHAMBERS-OSTLER, A. ESQUIVEL-MUELBERT, A. ROWLAND, L. MEIR, P. COSTA, A. C. L. da NINA, A. SANCHEZ, J. M. B. TINTAYA, J. S. CHINO, R. S. C. BACA, J. FERNANDES, L. CUMAPA, E. R. M. SANTOS, J. A. R. TEIXEIRA, R. TELLO, L. UGARTECHE, M. T. M. CUELLAR, G. A. MARTINEZ, F. ARAUJO-MURAKAMI, A. ALMEIDA, E. CRUZ, W. J. A. da PASQUEL, J. del A. ARAGÃO, L. BAKER, T. R. CAMARGO, P. B. de BRIENEN, R. CASTRO, W. RIBEIRO, S. C. SOUZA, F. C. de COSIO, E. G. CARDOZO, N. D. SILVA, R. da C. DISNEY, M. ESPEJO, J. S. FELDPAUSCH, T. R. FERREIRA, L. GIACOMIN, L. HIGUCHI, N. HIROTA, M. HONORIO, E. HUASCO, W. H. LEWIS, S. FLORES LLAMPAZO, G. MALHI, Y. MONTEAGUDO MENDOZA, A. MORANDI, P. MOSCOSO, V. C. MUSCARELLA, R. PENHA, D. ROCHA, M. C. RODRIGUES, G. RUSCHEL, A. R. SALINAS, N. SCHLICKMANN, M. SILVEIRA, M. TALBOT, J. VÁSQUEZ, R. VEDOVATO, L. VIEIRA, S. A. PHILLIPS, O. L. GLOOR, E. GALBRAITH, D. R.
Afiliação:	JULIA VALENTIM TAVARES, UNIVERSITY OF LEEDS RAFAEL S. OLIVEIRA, UNIVERSIDADE DE CAMPINAS MAURIZIO MENCUCCINI, CENTRO DE INVESTIGACIÓN ECOLÓGICA Y APLICACIONES FORESTALES CAROLINE SIGNORI-MÜLLER, UNIVERSITY OF LEEDS LUCIANO PEREIRA, UNIVERSIDADE DE CAMPINAS FRANCISCO CARVALHO DINIZ, UNIVERSITY OF LEEDS MARTIN GILPIN, UNIVERSITY OF LEEDS MANUEL J. MARCA ZEVALLOS, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO CARLOS A. SALAS YUPAYCCANA, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO MARTIN ACOSTA, UNIVERSIDADE FEDERAL DO ACRE FLOR M. PÉREZ MULLISACA, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO FERNANDA DE V. BARROS, UNIVERSITY OF EXETER PAULO BITTENCOURT, UNIVERSIDADE DE CAMPINAS HALINA JANCOSKI, UNIVERSIDADE DO ESTADO DE MATO GROSSO MARINA CORRÊA SCALON, UNIVERSIDADE DO ESTADO DE MATO GROSSO BEATRIZ S. MARIMON, UNIVERSIDADE DO ESTADO DE MATO GROSSO IMMA OLIVERAS MENOR, UNIVERSITY OF OXFORD BEN HUR MARIMON JUNIOR, UNIVERSIDADE DO ESTADO DE MATO GROSSO MAX FANCOURT, UNIVERSITY OF LEEDS ALEXANDER CHAMBERS-OSTLER, UNIVERSITY OF LEEDS ADRIANE ESQUIVEL-MUELBERT, UNIVERSITY OF BIRMINGHAM LUCY ROWLAND, UNIVERSITY OF EXETER PATRICK MEIR, UNIVERSITY OF EDINBURGH ANTONIO CARLOS LOLA DA COSTA, UNIVERSIDADE FEDERAL DO PARÁ ALEX NINA, PONTIFICIA UNIVERSIDAD CATÓLICA DEL PERÚ JESUS M. B. SANCHEZ, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO JOSE S. TINTAYA, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO RUDI S. C. CHINO, PONTIFICIA UNIVERSIDAD CATÓLICA DEL PERÚ JEAN BACA, UNIVERSIDAD NACIONAL DE LA AMAZONIA PERUANA LETICIA FERNANDES, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO EDWIN R. M. CUMAPA, UNIVERSIDADE FEDERAL DO PARÁ JOÃO ANTÔNIO R. SANTOS, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO RENATA TEIXEIRA, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO LIGIA TELLO, UNIVERSIDAD NACIONAL DE LA AMAZONIA PERUANA MAIRA T. M. UGARTECHE, MUSEO DE HISTORIA NATURAL NOEL KEMPFF MERCADO GINA A. CUELLAR, MUSEO DE HISTORIA NATURAL NOEL KEMPFF MERCADO FRANKLIN MARTINEZ, MUSEO DE HISTORIA NATURAL NOEL KEMPFF MERCADO ALEJANDRO ARAUJO-MURAKAMI, MUSEO DE HISTORIA NATURAL NOEL KEMPFF MERCADO EVERTON ALMEIDA, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ WESLEY JONATAR ALVES DA CRUZ, UNIVERSIDADE DO ESTADO DE MATO GROSSO JHON DEL AGUILA PASQUEL, UNIVERSIDAD NACIONAL DE LA AMAZONIA PERUANA LUIS ARAGÃO, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS TIMOTHY R. BAKER, UNIVERSITY OF LEEDS PLINIO BARBOSA DE CAMARGO, UNIVERSIDADE DE SĀO PAULO ROEL BRIENEN, UNIVERSITY OF LEEDS WENDESON CASTRO, UNIVERSIDADE FEDERAL DO ACRE SABINA CERRUTO RIBEIRO, UNIVERSIDADE FEDERAL DO ACRE FERNANDA COELHO DE SOUZA, UNIVERSIDADE DE BRASÍLIA ERIC G. COSIO, PONTIFICIA UNIVERSIDAD CATÓLICA DEL PERÚ NALLARET DAVILA CARDOZO, INSTITUTO DE INVESTIGACIONES DE LA AMAZONIA PERUANA RICHARLLY DA COSTA SILVA, UNIVERSIDADE FEDERAL DO ACRE MATHIAS DISNEY, UNIVERSITY COLLEGE LONDON JAVIER SILVA ESPEJO, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO TED R. FELDPAUSCH, UNIVERSITY OF EXETER LEANDRO FERREIRA, MUSEU PARAENSE EMÍLIO GOELDI LEANDRO GIACOMIN, UNIVERSIDADE FEDERAL DA PARAÍBA NIRO HIGUCHI, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA MARINA HIROTA, UNIVERSIDADE DE CAMPINAS EURIDICE HONORIO, INSTITUTO DE INVESTIGACIONES DE LA AMAZONIA PERUANA WALTER HUARACA HUASCO, UNIVERSITY OF OXFORD SIMON LEWIS, UNIVERSITY OF LEEDS GERARDO FLORES LLAMPAZO, INSTITUTO DE INVESTIGACIONES DE LA AMAZONIA PERUANA YADVINDER MALHI, UNIVERSITY OF OXFORD ABEL MONTEAGUDO MENDOZA, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO PAULO MORANDI, UNIVERSIDADE DO ESTADO DE MATO GROSSO VICTOR CHAMA MOSCOSO, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO ROBERT MUSCARELLA, UPPSALA UNIVERSITY DELIANE PENHA, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ MAYDA CECÍLIA ROCHA, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ GLEICY RODRIGUES, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA ADEMIR ROBERTO RUSCHEL, CPATU NORMA SALINAS, UNIVERSITY OF OXFORD MONIQUE SCHLICKMANN, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ MARCOS SILVEIRA, UNIVERSIDADE FEDERAL DO ACRE JOEY TALBOT, UNIVERSITY OF LEEDS RODOLFO VÁSQUEZ, JARDÍN BOTÁNICO DE MISSOURI LAURA VEDOVATO, UNIVERSITY OF EXETER SIMONE APARECIDA VIEIRA, UNIVERSIDADE ESTADUAL DE CAMPINAS OLIVER L. PHILLIPS, UNIVERSITY OF LEEDS EMANUEL GLOOR, UNIVERSITY OF LEEDS DAVID R. GALBRAITH, UNIVERSITY OF LEEDS.
Ano de publicação:	2023
Referência:	Nature, v. 617, p. 111-117, 2023.
Conteúdo:	Tropical forests face increasing climate risk1,2, yet our ability to predict their response to climate change is limited by poor understanding of their resistance to water stress. Although xylem embolism resistance thresholds (for example, Ψ50) and hydraulic safety margins (for example, HSM50) are important predictors of drought-induced mortality risk3,4,5, little is known about how these vary across Earth?s largest tropical forest. Here, we present a pan-Amazon, fully standardized hydraulic traits dataset and use it to assess regional variation in drought sensitivity and hydraulic trait ability to predict species distributions and long-term forest biomass accumulation. Parameters Ψ50 and HSM50 vary markedly across the Amazon and are related to average long-term rainfall characteristics. Both Ψ50 and HSM50 influence the biogeographical distribution of Amazon tree species. However, HSM50 was the only significant predictor of observed decadal-scale changes in forest biomass. Old-growth forests with wide HSM50 are gaining more biomass than are low HSM50 forests. We propose that this may be associated with a growth?mortality trade-off whereby trees in forests consisting of fast-growing species take greater hydraulic risks and face greater mortality risk. Moreover, in regions of more pronounced climatic change, we find evidence that forests are losing biomass, suggesting that species in these regions may be operating beyond their hydraulic limits. Continued climate change is likely to further reduce HSM50 in the Amazon6,7, with strong implications for the Amazon carbon sink.
Thesagro:	Biodiversidade Ecologia Florestal Ecologia
NAL Thesaurus:	Biodiversity Ecophysiology Forest ecology
Palavras-chave:	Tropical ecology Ecofisiologia Ecologia tropical
Digital Object Identifier:	https://doi.org/10.1038/s41586-023-05971-3
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATU)