@article{fdi:010086299, title = {{W}orldwide analysis of reef surveys sorts coral taxa by associations with recent and past heat stress}, author = {{S}elmoni, {O}. and {L}ecellier, {G}ael and {B}erteaux-{L}ecellier, {V}. and {J}oost, {S}.}, editor = {}, language = {{ENG}}, abstract = {{C}oral reefs around the world are under threat from anomalous heat waves that are causing the widespread decline of hard corals. {D}ifferent coral taxa are known to have different sensitivities to heat, although variation in susceptibilities have also been observed within the same species living in different environments. {C}haracterizing such taxa-specific variations is key to enforcing efficient reef conservation strategies. {H}ere, we combine worldwide-reef-survey data with remote sensed environmental variables to evaluate how local differences in taxa-specific coral cover are associated with past trends of thermal anomalies, as well as of non-heat related conditions. {W}hile the association with non-heat related environmental variation was seldom significant, we found that heat stress trends matched local differences in coral cover. {C}oral taxa were sorted based on the different patterns of associations with recent heat stress (measured the year before the survey) and past heat stress (measured since 1985). {F}or branching, tabular and corymbose {A}croporidae, reefs exposed to recent heat stress had lower coral cover than locally expected. {A}mong such reefs, those previously exposed to frequent past heat stress displayed relatively higher coral cover, compared to those less frequently exposed. {F}or massive and encrusting {P}oritidae, and for meandroid {F}avidae and {M}ussidae, we observed a negative association of coral cover with recent heat stress. {H}owever, unlike with {A}croporidae, these associations were weaker and did not vary with past heat exposure. {F}or {P}ocilloporidae, we found a positive association between coral cover and recent heat stress for reefs frequently exposed to past heat, while we found a negative association at reefs less frequently exposed to past heat. {A} similar pattern was observed for the branching {P}oritidae, although the associations were weaker and not statistically significant. {O}verall, these results show taxa-specific heat association patterns that might correspond to taxa-specific responses to past heat exposure, such as shifts in the assembly of coral communities, evolutionary adaptation or physiological acclimation.}, keywords = {coral reef ; coral bleaching ; global warming ; heat stress ; community ; shifts ; adaptation ; acclimation ; remote sensing ; {MONDE}}, booktitle = {}, journal = {{F}rontiers in {M}arine {S}cience}, volume = {9}, numero = {}, pages = {948336 [16 p.]}, year = {2022}, DOI = {10.3389/fmars.2022.948336}, URL = {https://www.documentation.ird.fr/hor/fdi:010086299}, }