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Population Limiting Factors. Mrs. Sandy Gomez. Why do all populations eventually stop increasing?. Population Limiting Factors. Are factors that may cause population’s size to decrease. Under ideal conditions with unlimited resources, a population will grow exponentially.
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Population Limiting Factors Mrs. Sandy Gomez
Population Limiting Factors • Are factors that may cause population’s size to decrease. • Under ideal conditions with unlimited resources, a population will grow exponentially
Population Limiting Factors • As resources become less available, the growth of a population slows or stops.
Population Limiting Factors • The two types of population limiting factors are: • Density-dependent limiting factors • Density-independent limiting factors
Density-Dependent Factors • Are limiting factors that depends on population size • Some of these limiting factors are: • Competition – organisms compete for resources • Parasitism and disease • Predation
Density-Dependent Factors • Competition – organisms compete for resources • Between members of the same species • Between members of different species
Density-Dependent Factors • Predation – when one species feeds on another • Predator – the organism that feeds on the prey • Prey – the organism being eaten
Density-Independent Factors • Affects all populations, regardless of the population size • Some of these factors are: • Unusual weather – heavy storms • Natural disasters – tornado, volcanic eruption • Seasonal cycles – insects die during winter • Human activities – clear-cutting forests