Table 1.
Measurements of host, pathogen and environmental factors. Pathogen factors were measured 4 days prior to (initial) and 1 to 3 days after (final) the monitoring period (equations in electronic supplementary material). For lesion severity, low, moderate and high correspond to less than 25%, 25–75% and greater than 75% of the colony affected by disease, respectively.
factor | metric description | range |
---|---|---|
host | host size (maximum diameter) | 12–135 cm |
host | sediment cover | 0–33% of tissue covered |
host | host cover | 4–67% cover of M. capitata colonies in 2 m2 |
environment | benthic cover (coral, sponge, and algae) | 12–100% cover in 2 m2 |
environment | diversity: species richness | 2–7 |
environment | diversity: Simpson's diversity index | 0.12–0.72 |
environment | depth | 0.5–7 m |
environment | reef position | flat, crest, slope |
pathogen | distance to diseased neighbours | initial: 0.00–8.23 m |
final: 0.16–7.90 m | ||
pathogen | lesion severity | initial: low–high |
final: moderate–high | ||
pathogen | size-weighted lesion severity | initial: 4–90 cm2 |
final: 9–150 cm2 | ||
pathogen | distance- and size-weighted lesion severity | initial: 0.05–2643 |
final: 0.21–256 |