Table 2 Bivariate results for proportions of water bodies located in well drained versus poorly drained grid cells by environmental variables collected about the water body (n = 29).
Variables | Well drained (n = 21) | Poorly drained (n = 8) | χ2 | P-value | O.R. | C.I. |
|---|---|---|---|---|---|---|
Land-use (% residential or commercial) | 20 (95.2) | 6 (75.0) | 0.055 | 0.814 | 6.7 | 0.51, 86.9 |
Size (% small habitats) | 6 (28.6) | 4 (50.0) | 1.177 | 0.278 | 0.4 | 0.75, 2.14 |
Nature (% human-made) | 20 (95.2) | 6 (75.0) | ** | Â | Â | Â |
Shade (% some shade) | 12 (57.1) | 6 (75.0) | ** | Â | Â | Â |
Pollution (% polluted) | 9 (42.9) | 5 (62.5) | 0.895 | 0.344 | 0.45 | 0.09, 2.4 |
Substrate (% cement or plastic) | 16 (76.2) | 6 (75.0) | 0.004 | 0.947 | 1.07 | 0.16, 7.06 |
Permanency (% perm. or semi-perm.) | 3 (14.3) | 2 (25.0) | 0.466 | 0.495 | 0.5 | 0.07, 3.75 |
Animals present (%) | 6 (28.6) | 6 (75.0) | 5.148 | 0.023 | 0.13 | 0.02, 0.86 |
Nearest house (% < 20 meters) | 21 (100) | 5 (62.5) | ** | Â | Â | Â |