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Factors Influencing Population Size - Coggle Diagram
Factors Influencing Population Size
Patterns
Adaptive extremes
k selection
equilibrial, ie. humans
r selection
opportunistic ie. dandelions and flies
Survivorship Curves
Type I
Type III
Type II
Environmental interactions
competition, ie. lions and cheetahs
mutualism, ie. pollinators
commensulism, ie. jackels and tigers
predation/parasitism, ie. cowbird
amensalism, ie. penicillium
Intrinsic Growth Rate
increase
immigration
births
decrease
deaths
emigration
growth rates
exponential growth rate
logistic growth rate
zero growth rate
Human Specific
Fertility trends and age structures
Species specific growth factors
technology advancements in medicine and industry
agriculture
new habitats
Demographic Transition Model
transitional (ie. Haiti)
industrial (ie. U.S.)
preindustrial
post-industrial (i.e. Japan)
Human Influenced
Habitat loss
Over consumption
Climate change
Limiting Factors
related to resources
density dependent
limited space
disease
food scarcity
population reaches
Carrying Capacity (K)
resulting in
related to chance
density independent
earthquake
volcanic eruption