HydroBASINS lev08 watershed · #7080592230
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 4 administrative regions : Cedar, Hickory, Polk, Saint Clair
Sub-basin area
224,3km²
Upstream area
224,4km²
Discharge
2,46m³/s
Mean elev.
297m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Polk104.5 km²46.6% of basin
- Saint Clair72.6 km²32.4% of basin
- Cedar35.7 km²15.9% of basin
- 11.5 km²5.1% of basin
6 intersecting protected areas
Birdsong
IUCN VConservation Area
1.57 km² overlap
Twenty-Five Mile Prairie
IUCN VConservation Area
1.38 km² overlap
Brush Creek
IUCN VConservation Area
0.60 km² overlap
Brush Creek
IUCN VNatural Area
0.14 km² overlap
Blackjack
IUCN VAccess
0.11 km² overlap
Turkey Creek
IUCN VConservation Area
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
499 distinct species · 2 677 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 Sac River : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 96 interactions GloBI sur 4 types (connectance 11.7%, filtre Serrano α=0.2). 19 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 065mm
Moisture idx (CMI)
-0,12
Runoff
348mm/an
PET
1 209mm
AET
900mm
Mean slope
2,3°
Water table
158cm
Forest
46%
Crops
34%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)