Please enable JavaScript.
Coggle requires JavaScript to display documents.
Population Ecology, Size, Environmental Interactions, Density Dependent …
Population Ecology
Gains/loss of population
Immigration
a new population's arrival
Emigration
individuals who leave to take up permanent residence elsewhere
Zero to Exponential Growth
(Zero) Birth to death ratio balanced
(Exp.Growth) Constant greater than zero
No limits on growth
Unlimited resources
Constant growth rate
J-Shaped curve
Logistig growth
Limits on growth
Falling growth rate
Failing growth rate
S-shaped curve
Population
Age structure
Sex ration
Density
Distribution
Size
Imigration
Births
Emigration
Deaths
Environmental Interactions
Biotic
Fast population growth
Unlimited food
Unlimited essential resources
Unlimited Shelter
Abiotic
Density- Independent factors
Food/nutrient limitations
Pollutants
Climate extremes
Density Dependent Factors
Density-dependent limiting factors
Slow birth rates
Rising death rates
Decrease in population growth
Increased Intraspecific competition
Fail to survive and reproduce
Competition for essential resources
parasite and disease increase