7236067
Description
Flashcards by Shareef Akbari, updated more than 1 year ago
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Created by Shareef Akbari
almost 9 years ago
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| 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? |
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