HydroBASINS lev08 watershed · #7080352440
Bassin de Saint Louis 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 1 administrative regions : Saint Louis
Sub-basin area
1 033,1km²
Upstream area
2 562,9km²
Discharge
36,96m³/s
Mean elev.
422m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Saint Louis River1013 km²
- Bassin de Embarrass River517 km²
1 dept-equivalent regions (GADM L2)
- 1036.0 km²100.0% of basin
5 intersecting protected areas
Zim
IUCN VState Wildlife Management Area
2.47 km² overlap
Fermoy
IUCN VState Wildlife Management Area
2.00 km² overlap
Sax
IUCN VState Wildlife Management Area
0.83 km² overlap
Anchor Lake
IUCN VState Wildlife Management Area
0.70 km² overlap
Aquatic Management Area
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 936 distinct species · 301 369 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Louis River : 23 espèces reliées par 92 interactions GloBI sur 4 types (connectance 16.4%, filtre Serrano α=0.2). 11 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°
3,1°C
Annual rain
696mm
Moisture idx (CMI)
-0,14
Runoff
542mm/an
PET
807mm
AET
589mm
Mean slope
1,0°
Water table
22cm
Forest
49%
Crops
4%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)