BIOL 2335 Lecture Notes - Lecture 8: Switch, Metapopulation, Limnetic Zone
Document Summary
Population ~ composed of interacting, isolated subpopulations that exchange individuals: ex. trees on islands seeds brazilian rainforest. Logistic: homogeneously distributed population, metapopulation composed of 4 isolated sub populations that exchange migrants. Basic conditions and assumptions of metapopulation model. Behavior of equations and influence of parameters on rate of change and on equilibrium value of p. Proportion of occupied patches is constant when pi(1-p) = ep: occupied patches remain constant when extinction is constant. Which will change equilibrium value of p (proportion of occupied patches: changing extinction rate, changing immigration rate, not changing population growth rate not about how well the population is growing. This is not taking into account how well something is occupying a patch. 10 year survey of 8 different plant species: plants have different growth rates, predict proportion of populations that will be large, small or extinct (10-year span) as function of growth rate.
