HydroBASINS lev08 watershed · #7080533050
Bassin de Big Blue 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 : Gage, Jefferson, Lancaster, Saline
Sub-basin area
295,3km²
Upstream area
9 217,4km²
Discharge
43,39m³/s
Mean elev.
421m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Turkey Creek1893 km²
- Bassin de Big Blue River321 km²
4 dept-equivalent regions (GADM L2)
- 230.3 km²77.9% of basin
- Jefferson39.0 km²13.2% of basin
- Saline17.1 km²5.8% of basin
- 9.3 km²3.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
256 distinct species · 1 344 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 Big Blue River : 32 espèces reliées par 123 interactions GloBI sur 4 types (connectance 14.3%, 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°
10,7°C
Annual rain
765mm
Moisture idx (CMI)
-0,32
Runoff
172mm/an
PET
1 121mm
AET
650mm
Mean slope
0,9°
Water table
108cm
Forest
2%
Crops
80%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)