HydroBASINS lev08 watershed · #7080432760
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 3 administrative regions : Beadle, Clark, Spink
Sub-basin area
2 747,1km²
Upstream area
38 532,4km²
Discharge
93,32m³/s
Mean elev.
413m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Timber Creek1587 km²
- Bassin de James River721 km²
3 dept-equivalent regions (GADM L2)
- 1499.8 km²54.5% of basin
- 773.0 km²28.1% of basin
- Clark480.2 km²17.4% of basin
30 intersecting protected areas
Beadle County
IUCN VWaterfowl Production Area
87.72 km² overlap
Spink County
IUCN VWaterfowl Production Area
22.91 km² overlap
Clark County
IUCN VWaterfowl Production Area
8.46 km² overlap
State Wildlife Management Area
3.83 km² overlap
Cavour
IUCN VLake
2.71 km² overlap
Watershed Protection
2.66 km² overlap
Fordham
IUCN VState Wildlife Management Area
2.57 km² overlap
Beadle County
IUCN VWaterfowl Production Area
1.62 km² overlap
Beadle County
IUCN VWaterfowl Production Area
1.62 km² overlap
21 more protected areassorted by overlap area
Watershed Protection
1.39 km² overlap
Beadle County
IUCN VWaterfowl Production Area
1.28 km² overlap
Conservation Easement
1.20 km² overlap
Beadle County
IUCN VWaterfowl Production Area
1.04 km² overlap
Conservation Easement
0.91 km² overlap
Watershed Protection
0.88 km² overlap
Pheasant Country
IUCN VState Wildlife Management Area
0.81 km² overlap
Lake Byron Northeast
IUCN VState Wildlife Management Area
0.75 km² overlap
Reserve Program
0.64 km² overlap
Lake
0.60 km² overlap
James River
IUCN VState Recreation Area
0.46 km² overlap
Beadle County
IUCN VWaterfowl Production Area
0.43 km² overlap
Mallard Slough
IUCN VState Wildlife Management Area
0.31 km² overlap
Lake Byron Hogsback
IUCN VState Wildlife Management Area
0.19 km² overlap
Wollman
IUCN VState Wildlife Management Area
0.12 km² overlap
Reserve Program
0.12 km² overlap
James River South
IUCN VState Wildlife Management Area
0.05 km² overlap
State Wildlife Management Area
0.05 km² overlap
South Byron
IUCN VWildlife Management Area
0.01 km² overlap
Third Street Dam
IUCN VWildlife Management Area
0.01 km² overlap
Lake Byron West
IUCN VRecreation Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
616 distinct species · 12 769 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 : 21 espèces reliées par 66 interactions GloBI sur 4 types (connectance 14.2%, filtre Serrano α=0.2). 10 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°
6,9°C
Annual rain
509mm
Moisture idx (CMI)
-0,48
Runoff
52mm/an
PET
987mm
AET
439mm
Mean slope
0,3°
Water table
27cm
Forest
1%
Crops
73%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)