Exercise 7 Pre

Exercise 7 Pre - Exercise 7 Calculating Diversity Indices...

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Exercise 7 Calculating Diversity Indices and Regression Assignment Pre-Exercise Assignment Jong Park 1. F; Few are abundant, most species are moderately abundant, and only also few are rare. The question says that “most species are… extremely rare,” which is wrong. 2. T 3. T 4. T 5. T 6. F; “The minimum value of Shannon-Wiener index [sic] is 0, which is the value of Shannon-Wiener index [sic] for a community with a single species, and increases as species richness and species evenness increases.” (Species Abundance and Diversity) As the excerpt explains, the larger value 0.7 does not indicate lower species diversity than one with an index of 0.4. 7. Community 1 Species Number Proportion (p i ) ln e P i -(p i ln e p i ) 1 32 .64 -0.446 0.285 2 10 .20 -1.609 0.322 3 5 .10 -2.303 0.230 4 2 .04 -3.219 0.129 5 1 .02 -3.912 0.078 Sum of -( p i ln e p i ) = 1.044 Community 2 Species Number Proportion (p i ) ln e P i -(p i ln e p i ) 1 10 .10 -2.303 0.230 2 10 .10 -2.303 0.230 3 10 .10 -2.303 0.230

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This note was uploaded on 02/02/2011 for the course ES 10 taught by Professor Kondolf during the Fall '09 term at Berkeley.

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Exercise 7 Pre - Exercise 7 Calculating Diversity Indices...

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