FIGURE 2.

Heat stress resistance and recovery experiment design. (a) Daily heat stress ramp protocol. Heated ramets in the heat stress experiment ramped from 30 to 34.5°C then back down to 30°C daily, and controls were maintained at 30°C. Heated ramets remained in the heat stress experiment daily ramp cycle for however many days necessary to reach moderate bleaching (see Section 2; described in Walker et al., 2022). (b) Violin chart of days to reach target moderate bleaching across all genets, based on average number of days ramets bleached. Genets were divided into 3 equal broad heat resistance categories (high, moderate, low), based on average number of days ramets needed to bleach. Genets with excessive control and/or heated ramet mortality were also removed during the heat stress experiment. Coral Colony IDs (x‐axis) correspond to unique tags that were used to distinguish genets in the field and during the experiments. Colonies that begin with “7.” or labeled 002‐010 came from patch reef 7, while others with “9.” or labeled 011‐020 came from patch reef 9 (Cornwell et al., 2021; Walker et al., 2022). (c) Simplified timeline of sampling timepoints during the heat stress resistance and recovery experiments. The heat stress experiment was conducted in the laboratory, and then ramets were deployed onto a reef common garden environment for the recovery experiment. Ramet mortality was recorded at all timepoints, chlorophyll a and buoyant weight were measured at select poststress timepoints (**), and chlorophyll a was additionally measured prestress (*).