Table 4 Parameter estimation (standard errors in parentheses) for linear RBAI models using the pooled MEI competition index as described in Eq. 2
From: Quantifying competition in white spruce (Picea glauca) plantations
Parameters | White spruce | Balsam fir | Other conifers | Broadleaves | |
|---|---|---|---|---|---|
Fixed part | b 20 | 0.1517 (0.0204) | 0.2629 (0.0191) | 0.1470 (0.0238) | 0.0687 (0.0410) |
b 21 | 0.0043 (0.0015) | n.s. | n.s. | 0.0111 (0.0028) | |
b 22 | −0.0278 (0.0021) | −0.0389 (0.0036) | −0.0184 (0.0044) | −0.0280 (0.0056) | |
b 23 | −0.0144 (0.0013) | −0.0155 (0.0021) | −0.0096 (0.0028) | n.s. | |
Random effects | σ jk a | 0.0158 | 0.0090 | 0.0208 | 0.0000 |
σ k b | 0.0107 | 0.0111 | 0.0064 | 0.0178 | |
σ 2c | 4.4560 | 4.9708 | 3.3294 | 4.5534 | |
δ d | −1.2252 | −1.1848 | −1.1889 | −1.1880 |