HydroBASINS lev08 watershed · #7080349370
Bassin de Knife 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 : Mercer, Oliver
Sub-basin area
1 197,9km²
Upstream area
6 572,1km²
Discharge
14,53m³/s
Mean elev.
607m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Spring Creek1550 km²
- Bassin de Knife River1003 km²
2 dept-equivalent regions (GADM L2)
- Mercer723.0 km²60.2% of basin
- 478.2 km²39.8% of basin
2 intersecting protected areas
North Beulah Mine
IUCN VState Wildlife Management Area
7.34 km² overlap
Harmony
IUCN VLake
1.99 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
554 distinct species · 14 788 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 Knife River : 28 espèces reliées par 98 interactions GloBI sur 4 types (connectance 14.7%, filtre Serrano α=0.2). 9 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°
5,2°C
Annual rain
429mm
Moisture idx (CMI)
-0,54
Runoff
62mm/an
PET
930mm
AET
374mm
Mean slope
1,6°
Water table
221cm
Forest
4%
Crops
43%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)