puits (1) temps (durée) (1) chasse (1) distribution (1) delta (1) Aerial photographs (1) Aerial photographs (1) Vernal pools (1) Year (1) Time (1) Surfaces--Areas and volumes (1) Prairies (1) Ponds (1) Percentage (1) Natural areas (1) Salt marshes (1) Marshes (1) Hunting (1) Checks (1) Change (1) Average (1) Aerial photographs (1) Size (1) Areas (1) Hunting (1) delta (1)