Table 3:
Parameter estimates from the global linear mixed-effects model explaining grizzly bear body condition in Alberta, Canada
| Parameters | β | ±SE | d.f. | t value | P value |
|---|---|---|---|---|---|
| Intercept | 0.03 | 0.30 | 111 | 0.10 | 0.92 |
| Female with cub(s)-of-year | −1.45 | 0.27 | 31 | −5.38 | <0.001 |
| Adult female | −1.20 | 0.20 | 31 | −6.04 | <0.001 |
| Juvenile female | −1.32 | 0.23 | 31 | −5.80 | <0.001 |
| Juvenile male | −0.75 | 0.22 | 31 | −3.33 | 0.002 |
| Capture date | 0.01 | 0.00 | 31 | 2.81 | 0.009 |
| Number of previous captures | −0.12 | 0.06 | 31 | −1.94 | 0.062 |
| Habitat net-energy demand | −0.23 | 0.10 | 31 | −1.85 | 0.073 |
| Density of forest harvest blocks | 0.42 | 0.17 | 31 | 2.42 | 0.022 |
| Density of secondary linear features | −0.13 | 0.16 | 31 | −0.81 | 0.424 |
| Distance decay to roads | −0.38 | 0.18 | 31 | −2.11 | 0.043 |
| Distance decay to well sites | 0.33 | 0.20 | 31 | 1.70 | 0.099 |
| Percentage of parks and protected areas | −0.18 | 0.10 | 31 | −1.91 | 0.065 |
| Crown closure (variance) | −0.16 | 0.09 | 31 | −1.92 | 0.064 |
| Percentage of conifer | 0.29 | 0.12 | 31 | 2.40 | 0.023 |
| Percentage of regenerating forest | 0.17 | 0.09 | 31 | 1.91 | 0.065 |
| Percentage of mixed and broadleaf tree cover | 0.13 | 0.12 | 31 | 1.16 | 0.256 |
| Percentage of shrub and herbaceous landcover | −0.00 | 0.09 | 31 | −0.04 | 0.968 |
| Forest age | −0.01 | 0.14 | 31 | −0.10 | 0.923 |
| Vegetation productivity (DHI) | 0.66 | 0.23 | 31 | 2.86 | 0.008 |
| Vegetation seasonality (DHI) | −0.40 | 0.15 | 31 | −2.57 | 0.015 |
The table shows parameter estimates (β), standard errors (±SE), degrees of freedom (d.f.), t values and parameter statistical significance (P values). Abbreviation: DHI, Dynamic Habitat Index. The model was refitted using restricted maximum likelihood estimation. Statistically significant parameters (P = 0.1) are indicated in bold.