Journal
CORAL REEFS
Volume 31, Issue 2, Pages 493-503Publisher
SPRINGER
DOI: 10.1007/s00338-011-0867-7
Keywords
Millennium Coral Reef Mapping Project; Remote sensing; Habitat prediction; Chronic disturbance regime
Categories
Funding
- Higher Education Funding Council for England through the ORSAS
- University of Exeter
- NERC
- ARC
- GEF Coral Reef Targeted Research
- EU
- NERC [NE/E017118/1] Funding Source: UKRI
- Natural Environment Research Council [NE/E017118/1] Funding Source: researchfish
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In the Caribbean region, forereef habitats dominated by Montastraea spp. have the highest biodiversity and support the largest number of ecosystem processes and services. Here we show that the distribution of this species-rich habitat can be explained by one environmental predictor: wave exposure. The relationship between wave exposure and the occurrence of Montastraea reefs was modelled using logistic regression for reefs throughout the Belize Barrier Reef, one of the largest and most topographically complex systems in the region. The model was able to predict correctly the occurrence of Montastraea reefs with an accuracy of 81%. Consistent with historical qualitative patterns, the distribution of Montastraea reefs is constrained in environments of high exposure. This pattern is likely to be driven by high rates of chronic sediment scour that constrain recruitment. The wide range of wave exposure conditions used to parameterize the model in Belize suggest that it should be transferable throughout much of the Caribbean region, constituting a fast and inexpensive alternative to traditional habitat mapping and complementing global efforts to map reef extent.
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