HydroBASINS lev08 watershed · #7080516510
Bassin de Skunk 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 : Henry, Jefferson, Keokuk, Washington
Sub-basin area
569,8km²
Upstream area
8 955,4km²
Discharge
73,8m³/s
Mean elev.
216m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de West Fork Crooked Creek737 km²
- Bassin de Skunk River537 km²
4 dept-equivalent regions (GADM L2)
- JeffersonIowa · United States395.4 km²69.3% of basin
- HenryIowa · United States161.9 km²28.4% of basin
- WashingtonIowa · United States10.2 km²1.8% of basin
- KeokukIowa · United States3.1 km²0.5% of basin
5 intersecting protected areas
Reserve Program
0.51 km² overlap
Livingston Timber
IUCN VLocal Conservation Area
0.30 km² overlap
Recreation
0.13 km² overlap
Watershed Protection
0.13 km² overlap
Reserve Program
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
328 distinct species · 10 439 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Skunk River : 32 espèces reliées par 109 interactions GloBI sur 4 types (connectance 12.1%, 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°
10,2°C
Annual rain
907mm
Moisture idx (CMI)
-0,15
Runoff
260mm/an
PET
1 061mm
AET
767mm
Mean slope
1,4°
Water table
83cm
Forest
3%
Crops
73%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)