Science / Marine Biology / Ecological Niche: The role a plant or animal plays in its community. The niche of an organism is defined by what it eats, its predators, salt tolerances, light requirements etc. Two species cannot live stably in the same habitat if they occupy identical niches.
Science / Biology / Niche Overlap: The extent to which two species require similar resources; specifies the strength of the competition between the two species. MORE
Science / Biology / Ecological Time: A timescale that focuses on community events that occur on the order of tens to hundreds of years. MORE