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Ecological Niche
the role of the organism in an ecosystem
Aspects of a niche
spatial utilization
food consumption
temperature range
mating requirements
moisture conditions
Fundamental/Potential Niche
full range of conditions in which an organism can survive
Realized/Actual Niche
actual range of conditions occupied by an organism in the presence of a strong competitor
Scottish Study OVERVIEW!
Chthalamus and the Semibalanus
the Chthalamus can withstand exposure and submersion so it occupies all of the mediolitteral (Upper and lower) - fundamental niche
presence of semibalanus, this is a better competitor and cannot withstand exporsure - fundamental niche
displaces the chthalamus stellatus to the upper mediolitteral - realized niche
