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Population Ecology - Coggle Diagram
Population Ecology
Additional causes of population declines
Climate change
Overxexploition and agriculture pollution
Land depredation
Limits on Population Growth
Density-dependent factors
Predation, parasitism, disease, competition for a limited resource
Logistic growth
Occurs when these factors affect population size & yields S-shaped curve
Cause birth rates to slow & death rates to rise
Carrying capacity
Max. number of individuals of a particular species that a population's environment can support indefinitely
Density-indepdendent factors
Arises regardless of population size
Natural disasters such as volcanic eruption, hurricane, flood
Natural selection patterns
K-selection
Adaptive traits allow their bearers to outcompete others for limited resources
R-selection
Producing the most offspring quickly is adaptive
Immigration
Addition of individuals to a population
Emigration
Movement of individuals out of a population