oiseau (1) sol (1) échantillonnage (1) pré (1) ADN (1) dégradation (1) abords (agglomération) (1) Reliability (1) Soils (1) Sampling (1) Reliability (1) Population (1) Feces (1) Experiments (1) Errors (1) DNA (1) Western capercaillie (1) Bacteria (1) Sampling (1) Population (1) Number (1) Experiments (1) oiseau (1)