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Population size - Coggle Diagram
Population size
Imigration
Increase the poplation
Invasive species
Decrease the population of native species
Cause a decrease in resources
Species leaving to find resource rich areas
Birth
Birth rate
Controlled by age and sex ratio
Increase in population
Other factors that regulate size
Density dependent
Limited resources
Carrying capacity
Density independent
Change in population due to chance
natural disasters
Populations reproduction strategies
K selection
reproduce in later years and reproduce a small amount
R selection
High amount of offspring with early age death
Emigration
Decrease the population size
Death
Decreases