Factors affecting growth as population densityDensity dependenceCompetitionTerritorialityDiseasePredationHarvest regulationsQuota systemsSize limitsMoratoriumsEx. With fish you can only harvest so many at a timeEndangered species: Declining PopulationsEx. Eagles, cheetahs*human population is growing faster than exponentialImmigration:influx of individualsEmigration:movement of individuals out of an areaMetapopulationsMultiple populations linked by im/emigration