Graphing The Data: Log-Normal Distributions and Rank-Abundance Curves

You have been asked to assess the diversity of species in a grassland plot and you find 16 species that vary in relative abundance. Using the data in the table, create a rank-abundance curve and a log-normal distribution.

SPECIES RANK ABSOLUTE ABUNDANCE RELATIVE ABUNDANCE LOG-NORMAL CATEGORY
1 308 0.385 ≥128
2 121 0.151 64 to <128
3 65 0.081 64 to <128
4 62 0.078 32 to <64
5 51 0.064 32 to <64
6 41 0.051 32 to <64
7 31 0.039 16 to <32
8 30 0.038 16 to <32
9 27 0.034 16 to <32
10 18 0.023 16 to <32
11 15 0.019 4 to <8
12 13 0.016 4 to <8
13 8 0.010 4 to <8
14 5 0.006 2 to <4
15 4 0.005 2 to <4
16 1 0.001 <2
TOTAL= 800