HydroBASINS lev08 watershed · #7080291210
Bassin de Saint Mary 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 : Division No. 2, Division No. 3
Sub-basin area
21,1km²
Upstream area
3 600,4km²
Discharge
16,03m³/s
Mean elev.
915m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Nine Mile Coulee789 km²
- Bassin de Saint Mary River715 km²
2 dept-equivalent regions (GADM L2)
- 15.3 km²72.2% of basin
- 5.9 km²27.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
548 distinct species · 7 324 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Saint Mary River : 34 espèces reliées par 118 interactions GloBI sur 5 types (connectance 11.4%, filtre Serrano α=0.2). 12 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°
5,4°C
Annual rain
393mm
Moisture idx (CMI)
-0,54
Runoff
134mm/an
PET
861mm
AET
344mm
Mean slope
2,2°
Water table
318cm
Forest
1%
Crops
44%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)