Lecture 5 - Lecture 5: Jan. 14 Population Growth &...

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1 Lecture 5: Jan. 14 Population Growth & Limitation •Demography • Exponential Growth • Logistic Growth • Factors that Regulate Population Growth • Metapopulation Dynamics Discussion Activity This Week Population Ecology Simulations - read handout before you come to discussion (week 3) Reading: Ch. 52 : 1192-1212 GSI SLC Office Hours Master Schedule Posted population density = number of individuals per unit area (or per volume water) - counts - sampling - mark & recapture methods Population Ecology : study of how and why the number of individuals in a population changes over time What is a population? M 1 x T 2 ______ N= R 2 mark-recapture study of chipmunks on campus – Capture 100 and mark them (M 1 ) Wait one week Capture 100 in second sampling (T 2 ) in second sample, 43 had marks (R 2 ) = number of recaptures So our estimate of effective population size is: N = (100 x 100)/43 = 232 chipmunks Mark-Recapture Techniques Demography = the study of the processes that affect the size and age structure of a population Population structure and dynamics are determined by births (B), deaths (D), immigration (I) and emigration(E).
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This note was uploaded on 12/06/2009 for the course BIO 225 taught by Professor Pavgi during the Spring '08 term at University of Michigan.

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Lecture 5 - Lecture 5: Jan. 14 Population Growth &...

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