How do storms, diseases, and predators affect coral reef communities? What are the similarities and differences in their effects?
Here I'll write what I know about this subject, but I highly suggest that you supplement this answer using your class lecture notes, as I'm guessing that your professor will be seeking answers with examples that were specifically discussed in class.
1. Effect of storms on coral reef communities:
Strong storms (like hurricanes) can strongly alter the structure of the coral reef community. The storm has several immediate effects, including mechanically destroying reefs or parts of reefs, changing the level of sedimentation in the community, and changing the salinity of the water. Due to the many abiotic shifts, the storms can therefore create conditions that favor certain species over others, thereby allowing some species to dominate when they typically would not under normal reef conditions. For example, storms can ...
This solution provides a discussion on abiotic and biotic effects which can influence coral reef communities. The similarities and differences between these effects are also included. This is all discussed in 535 words.