HydroBASINS lev08 watershed · #7080592220
Bassin de Sac 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 : Cedar, Polk, Saint Clair
Sub-basin area
141,3km²
Upstream area
4 699,1km²
Discharge
55,26m³/s
Mean elev.
276m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Cedar Creek1109 km²
- Bassin de Sac River123 km²
3 dept-equivalent regions (GADM L2)
- Cedar81.9 km²58.0% of basin
- Saint Clair57.3 km²40.6% of basin
- Polk2.1 km²1.5% of basin
5 intersecting protected areas
National Wildlife Refuge
1.09 km² overlap
Blackjack
IUCN VAccess
0.74 km² overlap
Bluff Springs
IUCN VConservation Area
0.59 km² overlap
Turkey Creek
IUCN VConservation Area
0.58 km² overlap
Reserve Program
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
465 distinct species · 1 695 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Sac River : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 92 interactions GloBI sur 4 types (connectance 10.2%, filtre Serrano α=0.2). 14 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°
12,8°C
Annual rain
1 064mm
Moisture idx (CMI)
-0,13
Runoff
346mm/an
PET
1 219mm
AET
899mm
Mean slope
2,3°
Water table
151cm
Forest
85%
Crops
23%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)