05519naa a2201729 a 450000100080000000500110000800800410001910000190006024501050007926000090018452009810019365000110117465000190118565000160120465000120122065000250123265000120125765000220126965000220129165000240131365000090133765300270134670000200137370000280139370000260142170000190144770000200146670000150148670000170150170000200151870000220153870000140156070000170157470000230159170000170161470000200163170000170165170000190166870000170168770000150170470000180171970000240173770000180176170000140177970000190179370000200181270000140183270000250184670000260187170000180189770000230191570000150193870000250195370000150197870000230199370000230201670000180203970000170205770000180207470000160209270000250210870000230213370000150215670000150217170000170218670000190220370000160222270000200223870000140225870000210227270000220229370000140231570000230232970000190235270000190237170000150239070000200240570000200242570000190244570000190246470000270248370000170251070000150252770000320254270000220257470000200259670000190261670000160263570000140265170000190266570000160268470000130270070000170271370000230273070000230275370000190277670000220279570000130281770000200283070000190285070000190286970000170288870000180290570000230292370000250294670000210297170000140299270000220300670000170302870000190304570000210306470000180308570000170310370000260312070000220314670000220316870000210319070000190321170000220323070000150325270000210326770000160328870000240330470000260332870000170335470000220337170000200339370000170341370000170343070000170344770000180346470000170348270000140349970000190351370000190353270000150355170000150356670000190358170000170360070000150361770000270363270000240365970000210368370000130370470000200371777300520373721565872023-09-11       2023    bl uuuu     u00u1 u    #d1 aBENNETT, A. C.  aSensitivity of South American tropical forests to an extreme climate anomaly.h[electronic resource]  c2023  aThe tropical forest carbon sink is known to be drought sensitive, but it is unclear which forests are the most vulnerable to extreme events. Forests with hotter and drier baseline conditions may be protected by prior adaptation, or more vulnerable because they operate closer to physiological limits. Here we report that forests in drier South American climates experienced the greatest impacts of the 2015?2016 El Niño, indicating greater vulnerability to extreme temperatures and drought. The long-term, ground-measured tree-by-tree responses of 123 forest plots across tropical South America show that the biomass carbon sink ceased during the event with carbon balance becoming indistinguishable from zero (?0.02 ± 0.37 Mg C ha ?1 per year). However, intact tropical South American forests overall were no more sensitive to the extreme 2015?2016 El Niño than to previous less intense events, remaining a key defence against climate change as long as they are protected.  aCarbon  aClimate change  aDry forests  aEl Nino  aEnvironmental impact  aCarbono  aFloresta Tropical  aImpacto Ambiental  aMudança Climática  aSeca  aAlteração climática1 aSOUSA, T. R. de1 aMONTEAGUDO-MENDOZA , A.1 aESQUIVEL-MUELBERT, A.1 aMORANDI, P. S.1 aSOUZA, F. C. de1 aCASTRO, W.1 aDUQUE, L. F.1 aLLAMPAZO, G. F.1 aSANTOS, R. M. dos1 aRAMOS, E.1 aTORRE, E. V.1 aALVAREZ-DAVILA, E.1 aBAKER, T. R.1 aCOSTA, F. R, C.1 aLEWIS, S. L.1 aMARIMON, B. S.1 aSCHIETTI, J.1 aBURBAN, B.1 aBERENGUER, E.1 aARAUJO-MURAKAMI, A.1 aCORREA, Z. R.1 aLOPEZ, W.1 aSANTANA, F. D.1 aVISCARRA, L. J.1 aELIAS, F.1 aVASQUEZ MARTINEZ, R.1 aMARIMON-JUNIOR, B. H.1 aGALBRAITH, G.1 aSULLIVAN, M. J. P.1 aEMILIO, T.1 aPRESTES, N. C. C. S.1 aBARLOW, J.1 aFAGUNDES, N. C. A.1 aOLIVEIRA, E. A. de1 aLOAYZA, P. A.1 aALVES, L. F.1 aVIEIRA, S. A.1 aMAIA, V. A.1 aARAGÃO, L. E. O. C.1 aARETS, E. J. M. M.1 aARROYO, L.1 aBÁNKI, O.1 aBARALOTO, C.1 aCAMARGO, P. B.1 aBARROSO, J.1 aSILVA, W. B. da1 aBONAL, D.1 aSANTOS, A. B. M.1 aBRIENEN, R. J. W.1 aBROWN, F.1 aCASTILHO, C. V. de1 aRIBEIRO, S. C.1 aMOSCOSO, V. C.1 aCHAVEZ, E.1 aCOMISKEY, J. A.1 aVALVERDE, F. C.1 aCARDOZO, N. D.1 aMELO, L. de O.1 aAGUILA PASQUEL, J. del1 aDERROIRE, D.1 aDISNEY, M.1 aAURÉLIE DOURDAIN, M. do S.1 aFELDPAUSCH, T. R.1 aFERREIRA, J. N.1 aMARTINS, V. F.1 aGARDNER, T.1 aGLOOR, E.1 aSIBAUTY, G. G.1 aGUILLEN, R.1 aHASE, E.1 aHÉRAULT, B.1 aCORONADO, E. N. H.1 aHUARACA HUASCO, W.1 aJANOVEC, J. P.1 aJIMENEZ-ROJAS, E.1 aJOLY, C.1 aKALAMANDEEN, M.1 aKILLEEN, T. J.1 aFARRAPO, C. L.1 aLEVESLEY, A.1 aROMANO, L. L.1 aLOPEZ GONZALEZ, G.1 aSANTOS, F. A. M. dos1 aMAGNUSSON, W. E.1 aMALHI, Y.1 aREIS, S. M. de A.1 aMELGAÇO, K.1 aCRUZ, O. A. M.1 aMENDOZA POLO, I.1 aMONTAÑEZ, T.1 aMOREL, J. D.1 aNÚÑEZ VARGAS, M. P.1 aARAÚJO, R. O. de1 aCAMACHO, N. C. P.1 aGUTIERREZ, A. P.1 aPENNINGTON, T.1 aPICKAVANCE, G. C.1 aPIPOLY, J.1 aPITMAN, N. C. A.1 aQUESADA, C.1 aRAMIREZ AREVALO, F.1 aRAMÍREZ‐ANGULO, H.1 aRAMOS, R. F.1 aRICHARDSON, J. E.1 aSOUZA, C. R. de1 aROOPSIND, A.1 aSCHWARTZ, G.1 aSILVA. R. C.1 aESPEJO, J. S.1 aSILVEIRA, M.1 aSINGH, J.1 aSHAREVA, Y. S.1 aSTEININGER, M.1 aSTROPP, J.1 aTALBOT, J.1 aSTEEGE, H. Ter1 aTERBORGH, J.1 aTHOMAS, R.1 aVALENZUELA GAMARRA, L.1 aHEIJDEN, G. van den1 aHOUT, P, van den1 aZAGT, r.1 aPHILLIPS, O. L.  tNature Climate Changegv. 13, p. 967-974, 2023.