Density Independence Versus Density Dependence

Question	Answer
What is density independent population growth?	What happens to population number doesn't depend on population number
What is Density-dependent population growth?	What happens to population number depends on population number
What is the equation for density dependent growth rate?	rate=birthrate-deathrate
What are the three reasons birth and death rate can affect growth rate?	Competition for resources Disease Interference competition
What is the Alee effect?	Small populations tend to go extinct due to reproductive failure
What is a density independent factor?	Factors that kill the same proportion of the population regardless of population density
What is environmental stochasticity?	Unpredictable spontaneous fluctuations in environmental conditions.
What is the equation used to calculate the total population using mark release recapture technique?	Total population = (total marked*total recaptured)/number marked after recapture
What factors does death rate depend on?	Population density, age, climate
What factors does birth rate depend on?	Age, density, year
What is the equation to predict population abundance?	Image: 1764e42f-ea36-4ee1-8421-a97295ce6f58 (image/png)

Resource summary

	Created by Shareef Akbari over 7 years ago