HydroBASINS lev08 watershed · #7080468870
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 4 administrative regions : Bon Homme, Hutchinson, Turner, Yankton
Sub-basin area
1 930,7km²
Upstream area
52 202,9km²
Discharge
39,04m³/s
Mean elev.
410m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de James River2330 km²
- Bassin de James River1061 km²
4 dept-equivalent regions (GADM L2)
- 847.4 km²43.8% of basin
- 729.9 km²37.7% of basin
- 356.8 km²18.4% of basin
- Turner0.1 km²0.0% of basin
19 intersecting protected areas
State Wildlife Management Area
2.16 km² overlap
Yankton County
IUCN VWaterfowl Production Area
1.78 km² overlap
Walz
IUCN VState Wildlife Management Area
1.58 km² overlap
Reserve Program
1.34 km² overlap
Lake Henry
IUCN VWildlife Management Area
1.03 km² overlap
Reserve Program
0.99 km² overlap
Yankton County
IUCN VIWaterfowl Production Area
0.83 km² overlap
Watershed Protection
0.82 km² overlap
Beaver
IUCN VLake
0.74 km² overlap
10 more protected areassorted by overlap area
Reserve Program
0.27 km² overlap
Bon Homme County
IUCN VWaterfowl Production Area
0.23 km² overlap
Thompson
IUCN VState Wildlife Management Area
0.17 km² overlap
Ulmer
IUCN IbWilderness
0.16 km² overlap
Brandt
IUCN VLake
0.12 km² overlap
Huff
IUCN VLake
0.11 km² overlap
Reserve Program
0.10 km² overlap
Schramm
IUCN VWildlife Management Area
0.08 km² overlap
Kellys Cove
IUCN VState Wildlife Management Area
0.04 km² overlap
Lake Menno
IUCN VState Wildlife Management Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
627 distinct species · 11 934 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 : 28 espèces reliées par 77 interactions GloBI sur 3 types (connectance 12.2%, filtre Serrano α=0.2). 8 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°
8,5°C
Annual rain
585mm
Moisture idx (CMI)
-0,44
Runoff
112mm/an
PET
1 042mm
AET
501mm
Mean slope
0,6°
Water table
79cm
Forest
2%
Crops
91%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)