Table 1:
Wilcoxon median rank sum test results for comparisons of total bat activity, species specific bat activity, diversity indices, and species richness between the control and proposed wetland/wetland sites before the wetland construction (November 19th, 2016 – March 14th, 2017) and after the wetland construction (March 15th, 2017 – March 28th, 2018). For pre-construction control vs proposed wetland bat activity comparisons n = 177, diversity indices and species richness comparisons n = 17. For post-construction control vs wetland bat activity comparisons n = 692, diversity indices and species richness comparisons n = 55. Significant p-values are in bold.
Pre-construction | Post-construction | |||||||
---|---|---|---|---|---|---|---|---|
Control median | Proposed wetland median | Median of differences between control vs proposed wetland | p | Control median | Wetland median | Median of differences between control vs wetland | p | |
Total Activity | 4 | 5 | −1.10×10−5 | 0.407 | 20 | 47 | −7.00 | <0.001 |
EPTFUS Activity | 1 | 0.5 | 6.71×10−5 | 0.263 | 5 | 17.5 | −4.00 | <0.001 |
LASBOR Activity | 0 | 0 | −1.02×10−5 | 0.001 | 0 | 0 | −6.57×10−6 | <0.001 |
LASCIN Activity | 1 | 1 | −2.05×10−5 | 0.001 | 0 | 0 | −1.00×10−5 | 0.016 |
LASNOC Activity | 0 | 0 | 4.72×10−5 | 0.562 | 0 | 1 | −4.09×10−5 | <0.001 |
NYCHUM Activity | 0 | 0 | 1.10×10−5 | 0.478 | 0 | 2 | −1.00 | <0.001 |
PERSUB Activity | 0 | 0 | −3.65×10−5 | 0.009 | 0 | 0 | −2.00×10−5 | <0.001 |
TADBRA Activity | 0 | 0 | −1.02×10−5 | 0.382 | 0 | 0.5 | −3.76×10−5 | 0.002 |
Shannon’s Index | 0.97 | 1.13 | 0.12 | 0.463 | 0.94 | 1.09 | −0.16 | 0.019 |
Simpson’s Index | 0.47 | 0.62 | 0.07 | 0.364 | 0.44 | 0.52 | −0.06 | 0.049 |
Species Richness | 6 | 5 | 5.81×10−5 | 0.946 | 6 | 7 | −3.50×10−5 | 0.050 |