Ha’apai site information.

Of the 32 sites surveyed at Ha’apai, the target coral species Pocillopora damicornis, or, alternatively, its closely related sister species P. acuta, was observed at and sampled from 15, and the data in this table are from these 15 sites only. In total 54 pocilloporid coral colonies were sampled across these 15 sites, and neither species was observed at the following 10 sites: TOHA03, 21, 22, 24, 25, 27, and 29–32. For the following seven sites, P. damicornis/P. acuta may have been present, but neither was sampled: TOHA02, 6, 11–12, 16–17, and 20. All reefs were emergent unless noted otherwise. For the environmental data for all 32 surveyed sites, please see S1 Data. The average temperatures (temp.), salinities, and live coral cover (ALCC) percentages (±std. dev.) reflect the means across the 15 sites from which corals were sampled (not all 32 surveyed sites). The 10 samples highlighted in bold were not processed for all molecular-scale response variables (MSRV).