Koontz, J., D.G. Huggins, C.C. Freeman, D.S. Baker - Central Plains ...

More documents

Recommendations

Info

Number of Samples 20 15 10 5 0 0 25 50 75 100 MMI Values Figure 47. Distribution of MMI values within the sample population, with median value, interquartile range, and upper and lower observations. The MMI assumes a normal distribution (Figure 47) due to metric scoring. When study population differences were evaluated with ANOVA, a higher mean value was observed in the reference population than in the random population (p < 0.001). Kruskal-Wallace nonparametric medians analysis found similar results (p < 0.001, Figure 48). One outlier (Site 7111) had a significantly higher MMI score than all other sites among the study Phase I samples. However Phase I and Phase II inner quartile ranges of the 25 th and 75 th percentile overlap. Site 7107 of the Phase I sample population was included in the population represented in Figure 48. Site 7107 was removed earlier because disturbance assessment data were not available. Though site 7108 had been excluded from this project, it was scored and found to have a significantly low MMI score in comparison to both sample populations. 68 of 84
MMI Scores 100 90 80 70 60 50 40 30 20 10 0 Figure 48. Median Box plots of MMI scores for reference and random populations. Box area represents inner quartile range, while “whiskers” represent the upper and lower observations. The CDFs produced for some of the MMI metrics and the MMI itself indicated that these measurements do separate reference and random population along the length of the distribution curve (example Figure 44, Figure 49). This separation is broadest and most evident in Percent Burrowers, HM Intolerant Taxa, and the MMI itself. CDF 100 90 80 70 60 50 40 30 20 10 0 1 2 Study Phase 0 10 20 30 40 50 60 70 80 90 100 Macroinvertebrate MMI Figure 49. Cumulative distribution frequency (CDF) of macroinvertebrate MMI in reference (Phase I) and random (Phase II) populations. 69 of 84 Phase One Phase Two
Page 1 and 2:
Assessment of Floodplain Wetlands o
Page 3 and 4:
Nitrogen ..........................
Page 5 and 6:
Executive Summary This project soug
Page 7 and 8:
other wetland parameters and assess
Page 9 and 10:
quality of plant community, respect
Page 11 and 12:
was inevitable, but care was taken
Page 13 and 14:
Evidence that waterfowl and/or amph
Page 15 and 16:
Floristic Quality Assessments Flori
Page 17 and 18: FQAI ALL 30 25 20 15 10 5 0 Figure
Page 19 and 20: MEAN CONSERVATISM ALL 6 5 4 3 2 1 0
Page 21 and 22: Mean Conductivity mS/cm 0.6 0.5 0.4
Page 23 and 24: Table 7). The wide range of values
Page 25 and 26: Nitrogen - N mg/L Total Nitrogen mg
Page 27 and 28: N:P ratio 30.0 24.0 18.0 12.0 6.0 0
Page 29 and 30: Chlorophyll a ug/L 200 180 160 140
Page 31 and 32: wetlands, respectively. Macroinvert
Page 33 and 34: from analysis did not show signific
Page 35 and 36: major wetland classes when ANOVA an
Page 37 and 38: measurement. There are sites within
Page 39 and 40: measurements, turbidity was conside
Page 41 and 42: TOC mg/L TOC mg/L 16 14 12 10 8 6 4
Page 43 and 44: Nitrate:Ammonia Ratio Phase II Tota
Page 45 and 46: CDF 100 90 80 70 60 50 40 30 20 10
Page 47 and 48: was true for organic nitrogen (R 2
Page 49 and 50: Figure 34. Error bar plots of mean
Page 51 and 52: and deethylatrazine were both prese
Page 53 and 54: suspected that differences in sampl
Page 55 and 56: Figure 38. Cumulative distribution
Page 57 and 58: Table 11. Metrics used in the devel
Page 59 and 60: tested: Percent Clingers (+) (p=0.0
Page 61 and 62: CDF Figure 42. Cumulative distribut
Page 63 and 64: Total Nitrogen mg/L Mean Conductivi
Page 65 and 66: Percent Hydroptilidae = 1.463766 +
Page 67: Table 14. Descriptive statistics fo
Page 71 and 72: ecoregions. Mean pH was also found
Page 73 and 74: MMI Scores UB Wetland Type MMI Scor
Page 75 and 76: Acknowledgements Field crew members
Page 77 and 78: Smith, L.M., N.H. Euliss, D.A. Wilc
Page 79 and 80: a. Land and soils coverage maps. b.
Page 81 and 82: Code Phase Longitude Latitude Site
Page 83 and 84: Appendix C. Laboratory measurements
show all

Koontz, J., D.G. Huggins, C.C. Freeman, D.S. Baker - Central Plains ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?