HydroBASINS lev08 watershed · #7080447720
Bassin de James 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 10 administrative regions : Aurora, Beadle, Clark, Davison, Hand +5
Sub-basin area
5 426km²
Upstream area
45 035,5km²
Discharge
80,52m³/s
Mean elev.
427m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de James River2747 km²
- Bassin de James River1077 km²
10 dept-equivalent regions (GADM L2)
- 1485.7 km²27.3% of basin
- 1019.3 km²18.7% of basin
- 829.1 km²15.2% of basin
- 821.3 km²15.1% of basin
- 319.9 km²5.9% of basin
- 294.8 km²5.4% of basin
- 273.3 km²5.0% of basin
- 214.6 km²3.9% of basin
2 moreFull L2 list
- Clark143.4 km² · 2.6%
- Aurora35.5 km² · 0.7%
30 intersecting protected areas
Sanborn County
IUCN VWaterfowl Production Area
160.54 km² overlap
Miner County
IUCN VWaterfowl Production Area
64.05 km² overlap
Beadle County
IUCN VWaterfowl Production Area
57.74 km² overlap
Kingsbury County
IUCN VWaterfowl Production Area
45.33 km² overlap
Hand County
IUCN VWaterfowl Production Area
37.54 km² overlap
Jerauld County
IUCN VWaterfowl Production Area
21.60 km² overlap
Sanborn County
IUCN VWaterfowl Production Area
17.21 km² overlap
Miner County
IUCN VWaterfowl Production Area
15.53 km² overlap
Sanborn County
IUCN VWaterfowl Production Area
12.71 km² overlap
21 more protected areassorted by overlap area
Chip Allen
IUCN VState Wildlife Management Area
9.33 km² overlap
Reserve Program
8.71 km² overlap
Reserve Program
7.02 km² overlap
Hanson County
IUCN VWaterfowl Production Area
6.80 km² overlap
Jerauld County
IUCN VWaterfowl Production Area
5.73 km² overlap
Watershed Protection
5.30 km² overlap
Beadle County
IUCN VWaterfowl Production Area
3.92 km² overlap
Reserve Program
3.92 km² overlap
Reserve Program
3.60 km² overlap
Miner County
IUCN VWaterfowl Production Area
3.35 km² overlap
Hanson County
IUCN VIWaterfowl Production Area
3.15 km² overlap
Sanborn County
IUCN VWaterfowl Production Area
3.11 km² overlap
Hanson County
IUCN VWaterfowl Production Area
2.98 km² overlap
Wetlands
IUCN Not AssignedReserve Program
2.62 km² overlap
Burke
IUCN VState Wildlife Management Area
2.57 km² overlap
Miner County
IUCN VWaterfowl Production Area
2.55 km² overlap
Hanson County
IUCN VWaterfowl Production Area
2.53 km² overlap
Twin Lakes
IUCN VLake
2.09 km² overlap
Morris
IUCN VLake
1.49 km² overlap
Bitter
IUCN VLake
0.83 km² overlap
Looby
IUCN Not AssignedSchool
0.81 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 368 distinct species · 27 409 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 James River : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 4 types (connectance 12.3%, 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°
7,5°C
Annual rain
546mm
Moisture idx (CMI)
-0,46
Runoff
60mm/an
PET
1 003mm
AET
469mm
Mean slope
0,3°
Water table
34cm
Forest
1%
Crops
74%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)