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Population Size - Coggle Diagram
Population Size
Logistic growth
Density-dependent factors slow the rate of growth
Predation, diseases, parasitism, and competing for limited resources
At low density, the population grows exponentially
Population size levels off at carrying capacity
S-shaped curve
Exponential growth
Constant growth rate
Birth rate exceeds death rate
Produces the J-shaped curve
Life History
Being able to survive to a certain age
Dying at specific ages
Traits related to reproduction include the age at which reproduction begins
Frequency of reproduction
Number of offspring produced by each reproductive event
Density-Independent factors
Natural disasters
Earthquakes
floods
Tornados
Humans
Oil spills
Pollution
Wild fires
Weather
Some plants and animals need the temperature to stay within a certain range
Honeybees