Open Access
Table 3.
Examples of predictive indicator with their main characteristics
| Name Reference | Taxonomic gro2up (species) | Species number | Expresion of result | Aggregation function | Input variable or component | Scale |
|---|---|---|---|---|---|---|
| VEM Sanderson et al., (1995) |
Plants | 534 | Probability of presence between 0 and 1 | Calculation of suitability index from the British National Vegetation ClassificationA probability of presence is derived from this index | e.g. grazing (yes/no)Slurry application (yes/no)Mineral fertilization (kg N/ha) | Fields, farm, landscape |
| Keichinger, (2001) | Pheasant Partridge Field hare Wild rabbit |
1 1 1 1 |
Score between 0 (maximum impact) and 10 (no impact) | Decision tree with fuzzy subsets for global indicators and components | Soil cover Crop diversity Machine use Pesticide risk Irrigation Semi-natural area |
Farm, landscape |
| Meyer-Aurich et al., (2003) | Amphibian Partridge |
Not explicit 1 |
Disturbance impact scored between 0 (none) and 1 (high) | Continuous function | e.g.number of tillage perturbationamount of nitrogennumber of herbicides | Field, farm, landscape |
| SALCA bd Jeanneret et al. (2006) |
Plants Mamamals Birds Amphibians Snails and slugs Spides Carabid beetle Orthoptera Bees and bumblebees Butterflies |
Not explicit | Score between 1 (negative impact) and 5 (positive impact) | Each cropping practices scored and calculation of an average value | Scale | Field, farm |
| Butler et al. (2009) | Birds Bumblebees Butterflies Mamals Broadleaf plants |
63 14 23 44 190 |
Risk score between 0 (none) and 3 to 6 (high) | Scoring system: assessing impact on species needs (e.g. diet, forage habitats) | e.g. Spring to autumn sowingIncreased agrochemical inputsLoss of non-cropped habitatLand drainage | Regional |
| MASC Sadok et al. (2009) |
None | No | 4 qualitative classes | Decisison tree based on decision tree (DExi software) | Crop diversityNon sprayer areaTreatment frequency indexa | Cropping system |
| DEXiPM Messéan et al. (2010) |
Flying natural enemies Polllinators Soil natural enemies Weeds Flora of semi-natural area |
Not explicit | 5 qualitative classes | Decisison tree based on decision tree (DExi software) | e.g Deep tillage,Treatment frequency indexa, Habitat management for soil natural ennemies | Cropping system and neighboring habitat |
| Sattler et al. (2010) | Birds Amphibian Mamal Hoverfly Field flora |
1 1 1 Not explicit Not explicit |
Between 0 (low) and 1 | Decision tree with fuzzy subsets | e.g. cropping practices, Herbicides treatment frequency indexa, fertilization (kg N/ha) |
Field |
| Tichit et al. (2010) | Birds | 2 | Occurrence of bird (yes/no) | Logistic regression function | 11 management and 11 habitats variables | Field |
| IBEA Anonymous, (2011) |
None | None | 5 qualitative classes | Decisison tree based on decision tree (DExi software) | e.g.Mineral fertilization (kg N/ha)Treatment frequency indexaArea with tillage | Farm |
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