Andorre (1) Ariège (1) Development (1) Deterioration (1) Data processing (1) Variation (1) Composition (1) Thresholds (Doorsills) (1) Altitudes (1) Indexes (1) Sensitive plant (1) Benthic plants (1) Benthic animals (1) Ecological integrity (1) Zoology (1) Worms (1) Wealth (1) Water (1) Tourism (1) Temporal bone (1) Temperature (1) Skis and skiing (1) Simuliidae (1) Predatory animals (1) Pollution (1) Phosphates (1) Oligochaeta (1) Nitrites (1) Nitrates (1) Mountains (1)