GenBio5PopEcol

GenBio5PopEcol - Population Ecology Dispersion Changes in...

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Population Ecology 1 Dispersion Changes in Population Size: Population Models Population Regulating Mechanisms Reproductive Strategies Survivorship Curves ECOLOGY - Recommended Reading Population Ecology Chap. 51 Community Ecology Chap. 52 a) Clumped - patchy distribution of resources b) Uniform - territoriality c) Random - random distribution of resources Dispersion (spacing) e.g. behavioral patterns often lead to clumping
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Population Ecology 2 Organisms produce more offspring than can survive to reproduce CHANGES IN POPULATION SIZE One pair IF all offspring survived, in 7 generations the population would number: 5,598,720,000,000 Populations possess enormous potential for growth 100 pair IF all offspring survived, in 15 gens the population would number: 10 79
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Population Ecology 3 Two opposing forces in population growth: Growth rate or the intrinsic rate of increase (r) : r = b d N/ t = b d dN/dt = rN POPULATION MODELS dN/dt = rN Modeling EXPONENTIAL Growth N = # of individuals r = intrinsic rate of growth
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This note was uploaded on 10/08/2010 for the course BIO 380 taught by Professor Martin during the Spring '10 term at Rutgers.

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GenBio5PopEcol - Population Ecology Dispersion Changes in...

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