@article{fdi:010085138, title = {{T}ropical tree mortality has increased with rising atmospheric water stress}, author = {{B}auman, {D}avid and {F}ortunel, {C}laire and {D}elhaye, {G}. and {M}alhi, {Y}. and {C}ernusak, {L}. {A}. and {B}entley, {L}. {P}. and {R}ifai, {S}. {W}. and {A}guirre-{G}utierrez, {J}. and {O}liveras {M}enor, {I}mma and {P}hillips, {O}. {L}. and {M}c{N}ellis, {B}. {E}. and {B}radford, {M}. and {L}aurance, {S}. {G}. {W}. and {H}utchinson, {M}. {F}. and {D}empsey, {R}. and {S}antos-{A}ndrade, {P}. {E}. and {N}inantay-{R}ivera, {H}. {R}. and {P}aucar, {J}. {C}. {R}. and {M}c{M}ahon, {S}. {M}.}, editor = {}, language = {{ENG}}, abstract = {{E}vidence exists that tree mortality is accelerating in some regions of the tropics , with profound consequences for the future of the tropical carbon sink and the global anthropogenic carbon budget left to limit peak global warming below 2 degrees {C}. {H}owever, the mechanisms that may be driving such mortality changes and whether particular species are especially vulnerable remain unclear. {H}ere we analyse a 49-year record of tree dynamics from 24 old-growth forest plots encompassing a broad climatic gradient across the {A}ustralian moist tropics and find that annual tree mortality risk has, on average, doubled across all plots and species over the last 35 years, indicating a potential halving in life expectancy and carbon residence time. {A}ssociated losses in biomass were not offset by gains from growth and recruitment. {P}lots in less moist local climates presented higher average mortality risk, but local mean climate did not predict the pace of temporal increase in mortality risk. {S}pecies varied in the trajectories of their mortality risk, with the highest average risk found nearer to the upper end of the atmospheric vapour pressure deficit niches of species. {A} long-term increase in vapour pressure deficit was evident across the region, suggesting that thresholds involving atmospheric water stress, driven by global warming, may be a primary cause of increasing tree mortality in moist tropical forests.}, keywords = {{AUSTRALIE} ; {ZONE} {TROPICALE}}, booktitle = {}, journal = {{N}ature}, volume = {608}, numero = {7923}, pages = {528--555}, ISSN = {0028-0836}, year = {2022}, DOI = {10.1038/s41586-022-04737-7}, URL = {https://www.documentation.ird.fr/hor/fdi:010085138}, }