Chapter 52 Population Ecology

Chapter 52 Population Ecology - Chapter 52 Population...

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Chapter 52 Population Ecology “Population growth is the primary source of environmental damage” o Jacques Y. Cousteau Population o Group of individuals of the same species occupying a given area at the same time Population Ecology o Study of populations in relation to the environment Population Parameters o Density Number of individuals per unit area or volume o Dispersion Pattern of spacing among individuals within the population What factors affect population density? Immigration o Natality (births) Size Mortality Emigration
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Dispersion Patterns o Clumped Individuals aggregated in patches May be influenced by resource availability and behavior Ex: wolves o Uniform Individuals evenly distributed May be influenced by social interactions such as territoriality Ex: bullfrogs, penguins o Random Position of each individual is independent of other individuals Occurs in absence of strong interactions among individuals or in homogeneous environment Ex: dandelions Demography o Study of the vital statistics of a population and how they change over time
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This note was uploaded on 08/21/2008 for the course BIOL 2108 taught by Professor Leege,gleason during the Spring '08 term at Georgia Southern University .

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Chapter 52 Population Ecology - Chapter 52 Population...

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