Hard Substrate Communities. Hard substrate = rocks, old shells, pilings, jetties, piers, docks Intertidal – perhaps best know marine community. Tides = periodic rise and fall of sea level.
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Hard Substrate Communities
Hard substrate = rocks, old shells, pilings, jetties, piers, docks
Intertidal – perhaps best know marine community
Starfish - Pisaster
3. Avoid destruction in waves
4. Salinity stress
Coast of Scotland:
Thais lapillus (now Nucella)
Space is key – processes involved in getting, keeping, and using space
-- shorter period of inundation means reduced probability of settlement in upper reaches
-- larvae chose where they settle
-- adult larval interactions affect settlement patterns
4.In benign physical environments, predation is most important in determining community composition