Table 2.
Selected mixed‐effect models for the cumulative‐biomass–longevity relationships of all taxa and four different subsets of taxa representing two functional groups (bioturbators, suspension feeders) and different sediment positions (surface, 0–5 cm, >5 cm deep)
| Model | Benthos | Model | AIC | Deviance explained (%) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | M | G | S | T | T × S | L × G | L × M | Sub‐surface trawling intensity | Surface trawling intensity | Sub‐surface trawling intensity | Surface trawling intensity | ||
| 1 | all taxa | x | x | x | x | x | x | x | 1,280.6 | 1,282.7 | 4.9 | 4.7 | |
| 2 | bioturbators | x | x | x | x | x | x | x | 1,314.1 | 1,315.5 | 4.8 | 4.7 | |
| 3 | suspension feeders | x | x | x | x | x | x | 1,618.8 | 1,617.4 | 1.8 | 1.8 | ||
| 4 | surface taxa | x | x | x | x | x | x | x | 1,436.0 | 1,431.4 | 3.7 | 4.0 | |
| 5 | subsurface taxa (0–5 cm) | x | x | x | x | x | x | 1,256.3 | 1,274.7 | 5.0 | 3.6 | ||
| 6 | subsurface taxa (>5 cm) | x | x | x | x | 1,441.4 | 1,441.4 | 2.3 | 2.3 | ||||
The Akaike information criterion (AIC) is given for models using the surface and subsurface trawling intensity. The explained deviance is calculated relative to the null model including longevity and the random intercept. L, ln(longevity); M, %mud; G, %gravel; S, ln(shear stress); T, ln(trawling intensity).