Fig. 1. Thermal tolerance responses of mangrove and reef corals to short term heat stress.

P. acuta F_v/F_m (maximum photosynthetic efficiency of photosystem II) thermal performance curves modeled using a three parameter log logistic regression model, with dashed vertical lines indicating the mean ED₅₀ values for (A) February 2023 wild groups (wild mangrove and wild reef) versus 1-year transplanted groups (mangrove to reef and reef to reef; Kruskal-Wallis test, P < 0.001) and (B) wild mangrove and reef corals between years (February 2022 versus 2023). Shaded areas around the curves represent the 95% confidence interval and data points indicate the mean F_v/F_m for each colony within the group. (C) Box plots of group ED₅₀ values by treatment (wild versus translocated) and year (2022 versus 2023) showing median value with upper and lower quartiles, n = 8 per group except wild reef 2022 (n = 7).