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Unformatted text preview: Population Ecology (Chapter 53) Population Ecology • Study of populations in relation to their environment o How biotic and abiotic factors influence density, distribution, size and age structure of populations • Population: a group of individuals of a single species living in the same general area Density • The number of individuals per unit area or volume • Typically estimated • Dynamic o Addition – birth, immigration (influx) o Removal – death, emigration (outflux) Dispersion • The pattern of spacing among individuals within the boundaries of the population • Clumped: aggregated in patches; most common pattern • Uniform: evenly distributed; result of antagonistic social interactions (territoriality); not common • Random: position of individuals independent of others; when abiotic factors are homogeneous; not common Factors contributing to population dynamics • Survival & Reproduction • Life history traits: traits that affect an organism’s schedule of reproduction and survival...
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This note was uploaded on 09/21/2011 for the course BSC2011C 2011 taught by Professor Fedorka/song during the Spring '11 term at University of Central Florida.
- Spring '11