HydroBASINS lev08 watershed · #7080492860
Bassin de Union Creek
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 : Madison, Platte, Stanton
Sub-basin area
896,4km²
Upstream area
896,6km²
Discharge
4,39m³/s
Mean elev.
511m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Madison465.6 km²51.9% of basin
- Platte265.3 km²29.6% of basin
- Stanton166.8 km²18.6% of basin
1 intersecting protected areas
Reserve Program
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
289 distinct species · 6 000 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Union Creek : 31 espèces reliées par 64 interactions GloBI sur 3 types (connectance 9.1%, filtre Serrano α=0.2). 7 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°
9,1°C
Annual rain
684mm
Moisture idx (CMI)
-0,36
Runoff
153mm/an
PET
1 069mm
AET
583mm
Mean slope
1,3°
Water table
144cm
Forest
0%
Crops
76%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)