HydroBASINS lev08 watershed · #7080468920
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 2 administrative regions : Bon Homme, Knox
Sub-basin area
235,5km²
Upstream area
235,6km²
Discharge
0,76m³/s
Mean elev.
415m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 233.1 km²98.8% of basin
- Knox2.8 km²1.2% of basin
10 intersecting protected areas
Bon Homme County
IUCN VWaterfowl Production Area
2.51 km² overlap
Snake Creek Marsh
IUCN VWildlife Management Area
1.00 km² overlap
Snake Creek State
IUCN VRecreation Area
0.37 km² overlap
Scientific And Natural Area
0.33 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Bon Homme, SD
IUCN Not AssignedConservation Easement
0.27 km² overlap
Conservation Easement
0.27 km² overlap
State Recreation Area
0.27 km² overlap
Reserve Program
0.23 km² overlap
Sand Creek
IUCN VRecreation Area
0.19 km² overlap
1 more protected areassorted by overlap area
State Recreation Area
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
233 distinct species · 3 244 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 4 types (connectance 12.6%, filtre Serrano α=0.2). 11 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°
9,1°C
Annual rain
561mm
Moisture idx (CMI)
-0,48
Runoff
95mm/an
PET
1 069mm
AET
480mm
Mean slope
0,5°
Water table
73cm
Forest
1%
Crops
89%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)