Koontz, J., D.G. Huggins, C.C. Freeman, D.S. Baker - Central Plains ...
Koontz, J., D.G. Huggins, C.C. Freeman, D.S. Baker - Central Plains ...
Koontz, J., D.G. Huggins, C.C. Freeman, D.S. Baker - Central Plains ...
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MMI Scores<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
Figure 48. Median Box plots of MMI scores for reference and random populations. Box area<br />
represents inner quartile range, while “whiskers” represent the upper and lower observations.<br />
The CDFs produced for some of the MMI metrics and the MMI itself indicated that these<br />
measurements do separate reference and random population along the length of the distribution<br />
curve (example Figure 44, Figure 49). This separation is broadest and most evident in Percent<br />
Burrowers, HM Intolerant Taxa, and the MMI itself.<br />
CDF<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
1 2<br />
Study Phase<br />
0 10 20 30 40 50 60 70 80 90 100<br />
Macroinvertebrate MMI<br />
Figure 49. Cumulative distribution frequency (CDF) of macroinvertebrate MMI in reference<br />
(Phase I) and random (Phase II) populations.<br />
69 of 84<br />
Phase One<br />
Phase Two
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