HydroBASINS lev08 watershed · #7080343560
Bassin de Missouri River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 3 administrative regions : McLean, Mercer, Ward
Sub-basin area
783,6km²
Upstream area
783,9km²
Discharge
1,31m³/s
Mean elev.
595m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- McLean752.3 km²95.7% of basin
- 33.3 km²4.2% of basin
- Mercer0.3 km²0.0% of basin
7 intersecting protected areas
Audubon
IUCN VState Wildlife Management Area
43.65 km² overlap
Mclean County
IUCN VWaterfowl Production Area
11.78 km² overlap
Detrobriand
IUCN VWildlife Management Area
10.68 km² overlap
Wolf Creek-mallard
IUCN VWildlife Management Area
7.30 km² overlap
Custer Mine
IUCN VState Wildlife Management Area
2.80 km² overlap
Mclean County
IUCN VIWaterfowl Production Area
0.92 km² overlap
Reserve Program
0.31 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
440 distinct species · 24 045 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Missouri River : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 70 interactions GloBI sur 3 types (connectance 17.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
4,5°C
Annual rain
428mm
Moisture idx (CMI)
-0,52
Runoff
52mm/an
PET
888mm
AET
374mm
Mean slope
0,8°
Water table
57cm
Forest
0%
Crops
69%
Urban
0%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)