Table 5 Average perceived risk for observed perchings on pylons with or without (noted as w/o) supplemental perches for every species or functional group with at least three perchings on pylons with and without supplemental perches; also shown are results from the Wilcoxon test and p-values for those analyses
From: Do supplemental perches influence electrocution risk for diurnal raptors?
Group/species | Risk w/o suppl. | Risk with suppl. | Wilcoxon test | p-value |
|---|---|---|---|---|
Small raptors | 2.718 ± 1.068 | 1.905 ± 1.933 | W = 1997 | 0.016 |
Elanus caerulus | 2.05 ± 0.224 | 0.139 ± 0.593 | W = 29 | 3.824e−11 |
Falco tinnunculus | 3.06 ± 1.167 | 3.171 ± 1.634 | W = 927 | 0.594 |
Medium-sized raptors | 2.72 ± 1.0885 | 2.036 ± 2.094 | W = 5751.5 | 0.001 |
Buteo buteo | 2.721 ± 0.907 | 2.053 ± 2.108 | W = 5268 | 0.001 |
Large eagles | 2.726 ± 0.961 | 1.004 ± 1.87 | W = 829 | 1.837e−11 |
Circaetus gallicus | 2.667 ± 0.952 | 0.78 ± 1.521 | W = 486 | 1.325e−11 |
Aquila adalberti | 3 ± 1.033 | 1.333 ± 2.309 | W = 12 | 0.156 |