Figure 3. Estimates of baseline coral reef cover.

Distribution of responses for expert opinion baseline estimates of coral reef cover by (A) survey respondent position and (B) according to the region where the respondent reported their highest observed coral cover. Colors are used to visually differentiate among positions. Numbers of respondents by position: professional scientists = 133, students = 45, managers, policy makers or NGO employees = 12, recreational divers (rec divers) = 5. Number of respondents by region: Atlantic Ocean = 5, Caribbean = 54, Indian Ocean = 13, Pacific Ocean = 109, Persian Gulf = 4, Red Sea = 8.