EEB319H1 Lecture Notes - Lecture 3: No Age, Time Point, Ecological Niche
20 Sep 2016
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Document Summary
Recall last class the different distributions (uniform, random, aggregated) imply positive/negative interactions. Population dynamics (today) has to do with the growth/decline of populations through time: population dynamics has both temporal and spatial components, dynamics" implies a change over time. These 4 things change population size form 1 time point to the next. N = immigration emigration + births deaths. Birth and immigration are positive because they increase the population size. Death and emigration are negative because they decrease the population size. Immigration and emigration have to do with the spatial component of population dynamics. Need to track population size from 1 time step to the next. Ex: say we were looking at abundance of bears in park, then t might only be 1 year. Ex: say we were looking at the abundance of zooplankton, then t might be 1 day. Time step allows you to track population size with some time step.
