HydroBASINS lev08 watershed · #7080349480
Bassin de Elm 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 5 administrative regions : Cass, Clay, Norman, Steele, Traill
Sub-basin area
1 781,7km²
Upstream area
40 709,3km²
Discharge
53,57m³/s
Mean elev.
296m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Buffalo River2716 km²
- Bassin de Red River of the North35 km²
5 dept-equivalent regions (GADM L2)
- 829.8 km²46.4% of basin
- Cass819.0 km²45.8% of basin
- Steele55.5 km²3.1% of basin
- 46.0 km²2.6% of basin
- Clay36.3 km²2.0% of basin
5 intersecting protected areas
Traill County
IUCN VIWaterfowl Production Area
1.78 km² overlap
Reserve Program
1.56 km² overlap
Watershed Protection
0.98 km² overlap
Steele County
IUCN VWaterfowl Production Area
0.59 km² overlap
Watershed Protection
0.35 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
409 distinct species · 8 639 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 Elm River : 21 espèces reliées par 73 interactions GloBI sur 3 types (connectance 15.7%, 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°
4,7°C
Annual rain
511mm
Moisture idx (CMI)
-0,43
Runoff
69mm/an
PET
895mm
AET
440mm
Mean slope
0,1°
Water table
9cm
Forest
3%
Crops
93%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)