@article{fdi:010075694, title = {{A}cclimatization of massive reef-building corals to consecutive heatwaves}, author = {{D}e{C}arlo, {T}. {M}. and {H}arrison, {H}. {B}. and {G}ajdzik, {L}. and {A}laguarda, {D}. and {R}odolfo-{M}etalpa, {R}iccardo and {D}'{O}livo, {J}. and {L}iu, {G}. and {P}atalwala, {D}. and {M}c{C}ulloch, {M}. {T}.}, editor = {}, language = {{ENG}}, abstract = {{R}eef-building corals typically live close to the upper limits of their thermal tolerance and even small increases in summer water temperatures can lead to bleaching and mortality. {P}rojections of coral reef futures based on forecasts of ocean temperatures indicate that by the end of this century, corals will experience their current thermal thresholds annually, which would lead to the widespread devastation of coral reef ecosystems. {H}ere, we use skeletal cores of long-lived {P}orites corals collected from 14 reefs across the northern {G}reat {B}arrier {R}eef, the {C}oral {S}ea, and {N}ew {C}aledonia to evaluate changes in their sensitivity to heat stress since 1815. {H}igh-density 'stress bands'-indicative of past bleaching-first appear during a strong pre-industrial {E}l {N}ino event in 1877 but become significantly more frequent in the late twentieth and early twenty-first centuries in accordance with rising temperatures from anthropogenic global warming. {H}owever, the proportion of cores with stress bands declines following successive bleaching events in the twenty-first century despite increasing exposure to heat stress. {O}ur findings demonstrate an increase in the thermal tolerance of reef-building corals and offer a glimmer of hope that at least some coral species can acclimatize fast enough to keep pace with global warming.}, keywords = {coral reefs ; acclimatization ; climate change ; ocean warming ; coral bleaching ; {AUSTRALIE} ; {GRANDE} {BARRIERE} {DE} {CORAIL} ; {PACIFIQUE} ; {MER} {DE} {CORAIL} ; {NOUVELLE} {CALEDONIE} ; {NOUMEA}}, booktitle = {}, journal = {{P}roceedings of the {R}oyal {S}ociety {B} : {B}iological {S}ciences}, volume = {286}, numero = {1898}, pages = {art. 20190235 [7 p.]}, ISSN = {0962-8452}, year = {2019}, DOI = {10.1098/rspb.2019.0235}, URL = {https://www.documentation.ird.fr/hor/fdi:010075694}, }