Population Limiting Factors
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Transcript of Population Limiting Factors
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
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-Dependent Factors
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
Density-Independent Factors
Thanks for your attention!