HydroBASINS lev08 watershed · #7080396460
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 : Brown, Dickey, Sargent
Sub-basin area
1 361,4km²
Upstream area
13 607,9km²
Discharge
30,1m³/s
Mean elev.
406m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 3 basins
- Bassin de Bear Creek1027 km²
- Bassin de James River342 km²
- Bassin · #7080080430291 km²
3 dept-equivalent regions (GADM L2)
- Brown763.7 km²56.0% of basin
- 503.8 km²36.9% of basin
- 97.3 km²7.1% of basin
29 intersecting protected areas
Sand Lake National Wildlife Refuge
IUCN Not ReportedWetland of International Importance (Ramsar Site)
99.02 km² overlap
Brown County
IUCN VWaterfowl Production Area
79.49 km² overlap
Brown County
IUCN VWaterfowl Production Area
36.63 km² overlap
Dakota Lake
IUCN Not AssignedNational Wildlife Refuge
10.95 km² overlap
Mcintosh County
IUCN VWaterfowl Production Area
9.12 km² overlap
Sargent County
IUCN VWaterfowl Production Area
8.64 km² overlap
Hyatt Slough
IUCN VState Wildlife Management Area
5.39 km² overlap
Dickey County
IUCN VWaterfowl Production Area
4.61 km² overlap
Watershed Protection
4.18 km² overlap
20 more protected areassorted by overlap area
Hecla Management
IUCN VState Wildlife Management Area
2.60 km² overlap
Hecla Controlled
IUCN VState Wildlife Management Area
2.00 km² overlap
Reserve Program
1.97 km² overlap
Watershed Protection
1.80 km² overlap
Reserve Program
1.57 km² overlap
Sargent County
IUCN VWaterfowl Production Area
0.93 km² overlap
Reserve Program
0.87 km² overlap
Conservation Easement
0.84 km² overlap
North Sand
IUCN VLake
0.64 km² overlap
West Hecla
IUCN VState Wildlife Management Area
0.64 km² overlap
East Hecla
IUCN VState Wildlife Management Area
0.63 km² overlap
Conservation Easement
0.63 km² overlap
Brown County
IUCN VWaterfowl Production Area
0.57 km² overlap
Reserve Program
0.53 km² overlap
Columbia
IUCN VState Wildlife Management Area
0.33 km² overlap
Wantiee
IUCN VState Wildlife Management Area
0.32 km² overlap
Taayer
IUCN VLake
0.32 km² overlap
Hart
IUCN VState Wildlife Management Area
0.28 km² overlap
Diagonal Trees
IUCN VState Wildlife Management Area
0.28 km² overlap
Zabrasha
IUCN VState Wildlife Management Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
534 distinct species · 44 623 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 : 18 espèces reliées par 63 interactions GloBI sur 4 types (connectance 19.4%, 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°
5,5°C
Annual rain
498mm
Moisture idx (CMI)
-0,47
Runoff
86mm/an
PET
945mm
AET
431mm
Mean slope
0,2°
Water table
18cm
Forest
15%
Crops
83%
Urban
0%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)