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Influence Of Population Size, Age Structure, net migration - Coggle Diagram
Influence Of Population Size
natality(birth rate)
mortality(death rate)
Fertility rate
Total fertility rate (TFR)
infant mortality rate
Life Expectancy
Immigration
is
when a set of individuals move into a new population from another area
can cause
limiting factors
environmental resources are becoming scarce and have to be restricted based off of population density
correlates to
density dependent factors
density independent factors
disease
competition
predation
Emigration
is
the movement of a set of individuals that move out of a population to another area
caused by
competition
climate change
natural disasters
predation
disease
Climate
long-terms weather can influence reproduction and survival rate
negatively affected by
pollution
Habitat Loss/Degradation
Competition
the trouble of finding resources and fighting with other individuals in a "race" for them
Technological Advancements
new innovations in agriculture, medicine, and sanitary skills
which affects
death and birth
Age Structure
is
the different ages that are scattered across a griup within a population
correlates with
sex ratio
is
the number of males and the number of females in a population
net migration
affects
carrying capacity
is
the maximum members a population could hold based off of the available resources
effects
resource availability
the difference between the number of emigrants to immigrants