Parameter | Binary (presence/absence) model | Negative binomial (density) model | ||||
---|---|---|---|---|---|---|
β | SE | P value | β | SE | P value | |
Substrate | − 0.016 | 0.1388 | 0.907 | − 0.038 | 0.0731 | 0.600 |
Water depth | 0.166 | 0.2015 | 0.408 | 0.049 | 0.0379 | 0.196 |
Perimeter | 0.154 | 0.2690 | 0.564 | − 0.260 | 0.1966 | 0.185 |
Bank slope | 2.149 | 1.2800 | 0.093Ë™ | 0.093 | 0.3071 | 0.760 |
Canopy type | − 0.058 | 0.2364 | 0.805 | − 0.112 | 0.1533 | 0.466 |
Sunlight | 0.137 | 0.2144 | 0.522 | 0.159 | 0.1841 | 0.385 |
Vegetation | − 0.053 | 0.0991 | 0.586 | − 0.044 | 0.0551 | 0.416 |
Debris | − 0.200 | 0.2612 | 0.443 | 0.009 | 0.1502 | 0.950 |
Predators | 0.365 | 0.1551 | 0.018* | 0.001 | 0.0897 | 0.985 |
Temperature | 0.293 | 0.0739 | < 0.001* | 0.116 | 0.0398 | 0.003* |
pH | 0.863 | 0.3242 | 0.008* | 0.457 | 0.2593 | 0.077Ë™ |
Salinity | 0.061 | 0.1799 | 0.733 | 0.092 | 0.1592 | 0.563 |
Nitrate | 0.006 | 0.0023 | 0.005* | − 0.154 | 0.3041 | 0.611 |
Ammonia | 0.752 | 0.3294 | 0.022* | 0.221 | 0.1428 | 0.120 |
Phosphate | 0.028 | 0.0095 | 0.003* | − 0.418 | 0.2770 | 0.131 |