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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Global tree-ring analysis reveals rapid decrease in tropical tree longevity with temperature

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Locosselli, Giuliano Maselli [1, 2] ; Brienen, Roel J. W. [3] ; Leite, Melina de Souza [1] ; Gloor, Manuel [3] ; Krottenthaler, Stefan [4] ; de Oliveira, Alexandre A. [1] ; Barichivich, Jonathan [5] ; Anhuf, Dieter [4] ; Ceccantini, Gregorio [1] ; Schongart, Jochen [6] ; Buckeridge, Marcos [1]
Total Authors: 11
[1] Univ Sao Paulo, Inst Biosci, BR-05508090 Sao Paulo, SP - Brazil
[2] Inst Bot, Cluster Ecol, BR-04301902 Sao Paulo, SP - Brazil
[3] Univ Leeds, Sch Geog, Leeds LS2 9JT, W Yorkshire - England
[4] Univ Passau, Dept Phys Geog, D-94032 Passau - Germany
[5] Pontificia Univ Catolica Valparaiso, Inst Geog, Valparaiso 2390302 - Chile
[6] Natl Inst Amazonian Res, BR-69067375 Manaus, Amazonas - Brazil
Total Affiliations: 6
Document type: Journal article
Web of Science Citations: 5

Forests are the largest terrestrial biomass pool, with over half of this biomass stored in the highly productive tropical lowland forests. The future evolution of forest biomass depends critically on the response of tree longevity and growth rates to future climate. We present an analysis of the variation in tree longevity and growth rate using tree-ring data of 3,343 populations and 438 tree species and assess how climate controls growth and tree longevity across world biomes. Tropical trees grow, on average, two times faster compared to trees from temperate and boreal biomes and live significantly shorter, on average (186 +/- 138 y compared to 322 +/- 201 y outside the tropics). At the global scale, growth rates and longevity covary strongly with temperature. Within the warm tropical lowlands, where broadleaf species dominate the vegetation, we find consistent decreases in tree longevity with increasing aridity, as well as a pronounced reduction in longevity above mean annual temperatures of 25.4 degrees C. These independent effects of temperature and water availability on tree longevity in the tropics are consistent with theoretical predictions of increases in evaporative demands at the leaf level under a warmer and drier climate and could explain observed increases in tree mortality in tropical forests, including the Amazon, and shifts in forest composition in western Africa. Our results suggest that conditions supporting only lower tree longevity in the tropical lowlands are likely to expand under future drier and especially warmer climates. (AU)

FAPESP's process: 20/09251-0 - Functional forests: biodiversity in the benefit of cities
Grantee:Giuliano Maselli Locosselli
Support type: Scholarships in Brazil - Young Researchers
FAPESP's process: 15/25511-3 - Climate and pollution reconstruction based on urban tree-rings growth records
Grantee:Giuliano Maselli Locosselli
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 19/08783-0 - Functional forests: biodiversity in the benefit of cities
Grantee:Giuliano Maselli Locosselli
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 17/50085-3 - PIRE: climate research education in the Americas using tree-ring speleothem examples (PIRE-CREATE)
Grantee:Francisco William da Cruz Junior
Support type: Research Projects - Thematic Grants
FAPESP's process: 08/57908-6 - National Institute of Science and Technology of Bioethanol
Grantee:Marcos Silveira Buckeridge
Support type: Program for Research on Bioenergy (BIOEN) - Thematic Grants
FAPESP's process: 13/21728-2 - The use of modern autopsy techniques to investigate human diseases (MODAU)
Grantee:Paulo Hilário Nascimento Saldiva
Support type: Research Projects - Thematic Grants