Limits on Population Growth

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Limits on Population growth : 

Limits on Population growth 1 M.BREGAR (Dante C.S.S.)

Biotic Potential : 

Biotic Potential The maximum number of offspring an organism can produce with UNLIMITED resources (food, water, space, etc.) 2 M.BREGAR (Dante C.S.S.)

Low Biotic Potential : 

Low Biotic Potential M.BREGAR (Dante C.S.S.) 3

High Biotic Potential : 

High Biotic Potential M.BREGAR (Dante C.S.S.) 4

Capacity for Survival : 

Capacity for Survival M.BREGAR (Dante C.S.S.) 5 Number of offspring that survive until they can themselves reproduce. Some animals may lay hundreds of eggs, but only a few will survive to become adults

Capacity for Survival(click on the you tube icon) : 

Capacity for Survival(click on the you tube icon) M.BREGAR (Dante C.S.S.) 6

Procreation : 

Procreation M.BREGAR (Dante C.S.S.) 7 The number of times per year, that an animal can reproduce

Reproductive Life : 

Reproductive Life M.BREGAR (Dante C.S.S.) 8 How long animals can actually reproduce for Elephants reproduce from age 15 to 90 Dogs from ages 2 to 7

Carrying Capacity : 

Carrying Capacity 9 M.BREGAR (Dante C.S.S.)

Carrying Capacity : 

Carrying Capacity Populations will grow until an ecosystems “natural limit” called the carrying capacity. These natural limits are called RESOURCES 10 M.BREGAR (Dante C.S.S.)

Carrying Capacity : 

Carrying Capacity M.BREGAR (Dante C.S.S.) 11

Limiting Factors : 

Limiting Factors 12 M.BREGAR (Dante C.S.S.)

Limiting Factors : 

Limiting Factors M.BREGAR (Dante C.S.S.) 13 These are any factors which prevent unlimited growth

Abiotic Limiting Factors : 

Abiotic Limiting Factors M.BREGAR (Dante C.S.S.) 14 Non-living factors which control population growth. Examples: temperature, rain, etc.

Biotic Limiting Factors : 

Biotic Limiting Factors M.BREGAR (Dante C.S.S.) 15 Living factors which control the growth of a population Examples: amount of food, predators, disease, etc.

Slide 16: 

M.BREGAR (Dante C.S.S.) 16

Population Density : 

Population Density M.BREGAR (Dante C.S.S.) 17 The number of animals in a given area. High Population Density Low Population Density

Density-Dependent Factors : 

Density-Dependent Factors M.BREGAR (Dante C.S.S.) 18 Limiting factors which are affected by the “number of other animals”. Example: food available, breeding areas, etc. Higher density, makes its harder to survive because there is more competition

Density-Independent Factors : 

Density-Independent Factors M.BREGAR (Dante C.S.S.) 19 Limiting factors not affected by population number (population density) Population controlled by non-living events.

Limits on Human Populations?(click on the you tube icon) : 

Limits on Human Populations?(click on the you tube icon) M.BREGAR (Dante C.S.S.) 20