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level: Understanding Population Ecology

Questions and Answers List

level questions: Understanding Population Ecology

QuestionAnswer
Carrying CapacityThe maximum number of individuals of a species which the ecosystem can support: mediated by limiting factors
Density Dependent Limiting FactorsFactor which increases/decreases dependent on its population numbers [Crowding, competition]
Density Independent Limiting FactorsFactor not dependent on population size [usually abiotic] [Temperature, Rainfall]
Population Growth FactorsImmigration/Emigration Fercundity Mortality
Lincoln IndexCapture-Recapture method [Capture, mark, release, recapture] N=(n₁×n₂)/n₃ N = Total Population n₁ = Number collected in the first capture n₂ = Number collected in the second capture n₃ = Number marked in the second capture
J-CurveExponential: Ideal conditions, unlimited resources
S-CurveLogistic: More Realistic, exponential until carrying capacity reached due to limiting factors