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Conor Farley
BMZ Lab BA
Lenna Odstraka
26 September 2011
Varying Diversity Based on More Than Meets the Eye
Hypothesis
: There is a greater amount of biodiversity in the mulched area of examination,
as opposed to the nonmulched area, due to certain abiotic factors such as moisture
content, temperature, and surface area.
Results
: The results of the data collected and equations used to determine biodiversity in
either of these areas were surprising to say the least. After recording all the data for my
groups’ mulched and nonmulched areas, I listed the Mulched area as ‘SetA,’ and the
NonMulched area as ‘SetB.’ For SetA, the population density, ‘N,’ was 68, and was 16
for SetB. The species richness for SetA (S) was 14, while it was 7 for SetB. I then
determined the ShannonWeiner Diversity Measure for both sets (H’), and recorded 2.23
for SetA and 1.688 for SetB. The Evenness for either set was then tested, and came out
as 0.83 for SetA, and 0.55 for SetB. Finally, I recorded the Simpson’s Index of
Diversity for both sets of data (1D), and found SetA was 0.835 and 0.773 for SetB. As
for the abiotic factors I started with, there were three individual groups that recorded the
temperature and moisture content for Sets AB, and for SetA, Group 1 had an average
temperature (over two trials) of 18.3, Group 2 had 18.7, and Group 3 had 18.85. As for
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View Full Documentthe moisture content of SetA, Group 1 had an average of 3.0, Group 2 had 2.35, and
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 Fall '11
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