Popolazione - ZyXEL NSA210

- relationship with environment may be modified bybiotic interactions (competition, predation)physiological optimumecological optimum Sp iPerformancePerformanceSp i Sp k Sp iEnvironmental factorEnvironmental factor- absence of competitors - competitor with similarrequirements- fundamental niche - describes the overallpotentialities of a species in terms of resourceutilisation- realised niche - describes the more limitedrange of resources for organism to maintain viablepopulationn even in the presence of competitor &predators (smaller than fundamental niche)