Table 1.
Selection options (bold) and supplementary explanations (italic) for the columns PRIM_DAMAGE, SEC_DAMAGE, LEVEL, MAX_AREA, AGE_CLASS.
| PRIM_DAMAGE/SEC_DAMAGE: The primary/secondary functional or structural type of damage to the tree |
|---|
| Flowers: Damage to the inflorescence or cones |
| Seeds: Damage to the immature or ripe seeds, either on the plant or when already on the ground |
| Buds/shoots: Damage to the buds of shoots or leaves or to non-lignified branches |
| Foliage: Damage to the foliage which impairs its function |
| Bark/cambium/phloem: Damage to the outer layer of the tree from the vascular cambium outwards |
| Wood/xylem: Structural damage to the wood/xylem, e.g., wholes, weakening, breakage |
| Roots: Damage to the roots |
| Seedlings/saplings: Damage to the whole seedling/sapling |
| LEVEL: Level of impact for a healthy tree |
| 1 - no effect: Noticeable impact/damage but no effect on individual tree fitness |
| 2 - reversible effect: Effects on individual tree fitness which are reversible (within 5 years) |
| 3 - irreversible effect: Changes to individual tree fitness which are irreversible (within 5 years) |
| 4 - death: Individual tree dies |
| MAX_AREA: Maximum (continuous) area affected |
| 1 - individual trees: Only individual trees are affected, neighbouring trees are healthy |
| 2 - group of trees: A group of trees (<0.5 ha) is affected, but the rest of the stand is unaffected |
| 3 - forest block: A forest block (0.5 ha - 100 ha) is affected, but the rest of the area is unaffected |
| 4 - large forest block: A large forest block (100 ha - 10,000 ha) is affected, but the rest of the area is unaffected |
| 5 - landscape: A very large continuous forest area (>10,000 ha) is affected |
| 6 - all trees: +/− all trees in the country affected, irrespective if single trees or continuous areas |
| AGE_CLASS: Development stage when impact typically occurs |
| 1 - juvenile trees: Young trees unable to produce seeds |
| 2 - adult trees: Mature trees potentially able to produce seeds |
| 3 - all: Young and mature trees |
Please mind that the columns PRIM_DAMAGE and SEC_DAMAGE were dropped in the final table and replaced with single columns for all eight damage types where 0 means not observed, 1 observed and 2 observed and originally filled as primary type of damage.