Table 2. Percentage of deviance explained by distance to the motorway (2006 data). The best-fitting model was determined by comparing the AICc values of the simple linear regression, log-linear regression (distance to Highway 401 was log-transformed) and piecewise regression models (Table 3) for each species and for species richness.
| |
| |
|
Species |
Best fitting regression model |
Percent of deviance explained by distance to
motorway |
| |
|
Species Richness |
log-linear |
50.4 |
|
Wood Frog |
log-linear |
41.8 |
|
Western Chorus Frog |
piecewise |
34.3 |
|
Spring Peeper |
piecewise |
31.5 |
|
Leopard Frog |
log-linear |
23.5 |
|
American Toad |
piecewise |
25.5 |
|
Gray Treefrog |
log-linear |
14.2 |
|
Green Frog |
log-linear |
11.2 |
|
| |
|