bio lect 30 - density and dispersion use a lot of...

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density and dispersion use a lot of statistical measurement in medical (anything) from densities. the use of birth control pills increases the chances of women to get blood clots by 100% this fear caused more 13,000 more abortions and more pregnant teenagers because of fear of death/ blood clots. the density increased from 1 to 2 in 7000 the clots were only in women that shouldn't be using birth control. density: the number of individuals per unit area of volume. can vary tremendously - diatoms high and low densities 5 million to 4 the human population can vary due to area 3 basic ways to measure density: 1) count it directly and measure per square mile/ meter have to see the organisms 2) set out a plot in teh field; traps in teh field mark captured tehm mark recaptured many captured - recaptured/ times - likely to be captured - likely to nnot be captured most common way to measure population dynamics is sampling - population universe and sampling universe. pop > sampling
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This note was uploaded on 05/10/2010 for the course BIO 1B taught by Professor Carlson,mischel,power during the Spring '07 term at University of California, Berkeley.

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bio lect 30 - density and dispersion use a lot of...

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