Basin-wide variation in tree hydraulic safety margins predicts the carbon balance of Amazon forests
Julia Valentim Tavares
(1)
,
Rafael Oliveira
(2)
,
Maurizio Mencuccini
(3)
,
Caroline Signori-Müller
(1, 4, 2)
,
Luciano Pereira
(2, 5)
,
Francisco Carvalho Diniz
(1)
,
Martin Gilpin
(1)
,
Manuel Marca Zevallos
,
Carlos Salas Yupayccana
(6)
,
Martin Acosta
(7)
,
Flor Pérez Mullisaca
,
Fernanda de V. Barros
,
Paulo Bittencourt
,
Halina Jancoski
,
Marina Corrêa Scalon
,
Beatriz Marimon
,
Imma Oliveras Menor
(8)
,
Ben Hur Marimon
,
Max Fancourt
,
Alexander Chambers-Ostler
,
Adriane Esquivel-Muelbert
,
Lucy Rowland
,
Patrick Meir
,
Antonio Carlos Lola da Costa
,
Alex Nina
,
Jesus Sanchez
,
Jose Tintaya
,
Rudi Chino
,
Jean Baca
,
Leticia Fernandes
,
Edwin Cumapa
,
João Antônio R. Santos
,
Renata Teixeira
,
Ligia Tello
,
Maira Ugarteche
,
Gina Cuellar
,
Franklin Martinez
,
Alejandro Araujo-Murakami
,
Everton Almeida
,
Wesley Jonatar Alves da Cruz
,
Jhon del Aguila Pasquel
,
Luís Aragāo
,
Timothy Baker
,
Plinio Barbosa de Camargo
,
Roel Brienen
,
Wendeson Castro
,
Sabina Cerruto Ribeiro
,
Fernanda Coelho de Souza
,
Eric Cosio
,
Nallaret Davila Cardozo
,
Richarlly da Costa Silva
,
Mathias Disney
,
Javier Silva Espejo
,
Ted Feldpausch
,
Leandro Ferreira
,
Leandro Giacomin
,
Niro Higuchi
,
Marina Hirota
,
Euridice Honorio
,
Walter Huaraca Huasco
,
Simon Lewis
,
Gerardo Flores Llampazo
,
Yadvinder Malhi
,
Abel Monteagudo Mendoza
,
Paulo Morandi
,
Victor Chama Moscoso
,
Robert Muscarella
,
Deliane Penha
,
Mayda Cecília Rocha
,
Gleicy Rodrigues
,
Ademir Ruschel
,
Norma Salinas
,
Monique Schlickmann
,
Marcos Silveira
,
Joey Talbot
,
Rodolfo Vásquez
,
Laura Vedovato
,
Simone Aparecida Vieira
,
Oliver Phillips
,
Emanuel Gloor
,
David Galbraith
1
University of Leeds
2 UNICAMP - Universidade Estadual de Campinas = University of Campinas
3 CREAF - Centre for Ecological Research and Applied Forestries
4 University of Exeter
5 Universität Ulm - Ulm University [Ulm, Allemagne]
6 UNSAAC - Universidad Nacional de San Antonio Abad del Cusco
7 UFAC - Universidade Federal do Acre
8 UMR AMAP - Botanique et Modélisation de l'Architecture des Plantes et des Végétations
2 UNICAMP - Universidade Estadual de Campinas = University of Campinas
3 CREAF - Centre for Ecological Research and Applied Forestries
4 University of Exeter
5 Universität Ulm - Ulm University [Ulm, Allemagne]
6 UNSAAC - Universidad Nacional de San Antonio Abad del Cusco
7 UFAC - Universidade Federal do Acre
8 UMR AMAP - Botanique et Modélisation de l'Architecture des Plantes et des Végétations
Julia Valentim Tavares
- Function : Author
- PersonId : 1257370
- ORCID : 0000-0003-3784-5720
Rafael Oliveira
- Function : Author
- PersonId : 800231
- ORCID : 0000-0002-6392-2526
Caroline Signori-Müller
- Function : Author
- PersonId : 1257371
- ORCID : 0000-0003-1047-1896
Luciano Pereira
- Function : Author
- PersonId : 800232
- ORCID : 0000-0003-2225-2957
Manuel Marca Zevallos
- Function : Author
- PersonId : 1257372
- ORCID : 0000-0001-9428-7441
Martin Acosta
- Function : Author
- PersonId : 1257373
- ORCID : 0000-0001-8624-1339
Flor Pérez Mullisaca
- Function : Author
Fernanda de V. Barros
- Function : Author
Paulo Bittencourt
- Function : Author
Halina Jancoski
- Function : Author
Marina Corrêa Scalon
- Function : Author
- PersonId : 822669
- ORCID : 0000-0003-2069-8226
Beatriz Marimon
- Function : Author
Imma Oliveras Menor
- Function : Author
- PersonId : 794477
- ORCID : 0000-0001-5345-2236
Ben Hur Marimon
- Function : Author
- PersonId : 1149643
- ORCID : 0000-0002-6359-6281
Max Fancourt
- Function : Author
- PersonId : 1257374
- ORCID : 0000-0002-8980-2354
Alexander Chambers-Ostler
- Function : Author
Adriane Esquivel-Muelbert
- Function : Author
- PersonId : 1149312
- ORCID : 0000-0001-5335-1259
Lucy Rowland
- Function : Author
- PersonId : 775070
- ORCID : 0000-0002-0774-3216
Patrick Meir
- Function : Author
Antonio Carlos Lola da Costa
- Function : Author
Alex Nina
- Function : Author
Jesus Sanchez
- Function : Author
Jose Tintaya
- Function : Author
Rudi Chino
- Function : Author
- PersonId : 1257375
- ORCID : 0000-0003-1463-8278
Jean Baca
- Function : Author
Leticia Fernandes
- Function : Author
- PersonId : 1257376
- ORCID : 0000-0003-2680-6398
Edwin Cumapa
- Function : Author
João Antônio R. Santos
- Function : Author
Renata Teixeira
- Function : Author
Ligia Tello
- Function : Author
Maira Ugarteche
- Function : Author
Gina Cuellar
- Function : Author
Franklin Martinez
- Function : Author
Alejandro Araujo-Murakami
- Function : Author
Everton Almeida
- Function : Author
Wesley Jonatar Alves da Cruz
- Function : Author
- PersonId : 1257377
- ORCID : 0000-0001-5841-3471
Jhon del Aguila Pasquel
- Function : Author
Luís Aragāo
- Function : Author
Timothy Baker
- Function : Author
- PersonId : 1149313
- ORCID : 0000-0002-3251-1679
Plinio Barbosa de Camargo
- Function : Author
Roel Brienen
- Function : Author
- PersonId : 1257378
- ORCID : 0000-0002-5397-5755
Wendeson Castro
- Function : Author
- PersonId : 1149314
- ORCID : 0000-0002-5592-9891
Sabina Cerruto Ribeiro
- Function : Author
Fernanda Coelho de Souza
- Function : Author
- PersonId : 1257379
- ORCID : 0000-0002-3919-4493
Eric Cosio
- Function : Author
Nallaret Davila Cardozo
- Function : Author
Richarlly da Costa Silva
- Function : Author
- PersonId : 1257380
- ORCID : 0000-0002-8312-760X
Mathias Disney
- Function : Author
- PersonId : 1152389
- ORCID : 0000-0002-2407-4026
Javier Silva Espejo
- Function : Author
Ted Feldpausch
- Function : Author
- PersonId : 794730
- ORCID : 0000-0002-6631-7962
Leandro Ferreira
- Function : Author
Leandro Giacomin
- Function : Author
- PersonId : 1191301
- ORCID : 0000-0001-8862-4042
Niro Higuchi
- Function : Author
Marina Hirota
- Function : Author
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- ORCID : 0000-0002-1958-3651
Euridice Honorio
- Function : Author
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- ORCID : 0000-0003-2314-590X
Walter Huaraca Huasco
- Function : Author
Simon Lewis
- Function : Author
- PersonId : 1144640
- ORCID : 0000-0002-8066-6851
Gerardo Flores Llampazo
- Function : Author
Yadvinder Malhi
- Function : Author
- PersonId : 761762
- ORCID : 0000-0002-3503-4783
- IdRef : 090250486
Abel Monteagudo Mendoza
- Function : Author
Paulo Morandi
- Function : Author
Victor Chama Moscoso
- Function : Author
Robert Muscarella
- Function : Author
Deliane Penha
- Function : Author
Mayda Cecília Rocha
- Function : Author
- PersonId : 1257383
- ORCID : 0000-0002-6749-7010
Gleicy Rodrigues
- Function : Author
Ademir Ruschel
- Function : Author
Norma Salinas
- Function : Author
Monique Schlickmann
- Function : Author
Marcos Silveira
- Function : Author
- PersonId : 772008
- ORCID : 0000-0003-0485-7872
Joey Talbot
- Function : Author
Rodolfo Vásquez
- Function : Author
Laura Vedovato
- Function : Author
Simone Aparecida Vieira
- Function : Author
- PersonId : 1257384
- ORCID : 0000-0002-0129-4181
Oliver Phillips
- Function : Author
- PersonId : 763132
- ORCID : 0000-0002-8993-6168
- IdRef : 071202331
Emanuel Gloor
- Function : Author
David Galbraith
- Function : Author
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- ORCID : 0000-0002-5555-4823
Abstract
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.
Domains
Biodiversity and EcologyOrigin | Files produced by the author(s) |
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