HydroBASINS lev08 watershed · #7080512050
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
536,8km²
Upstream area
7 648,4km²
Discharge
62,95m³/s
Mean elev.
220m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de North Skunk River2248 km²
- Bassin de South Skunk River1621 km²
4 dept-equivalent regions (GADM L2)
- WashingtonIowa · United States308.3 km²57.4% of basin
- KeokukIowa · United States187.4 km²34.9% of basin
- JeffersonIowa · United States41.8 km²7.8% of basin
- HenryIowa · United States0.0 km²0.0% of basin
13 intersecting protected areas
Reserve Program
5.17 km² overlap
Reserve Program
3.43 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Washington, IA
IUCN VConservation Easement
2.42 km² overlap
Skunk River
IUCN VWildlife Management Area
1.68 km² overlap
Watershed Protection
1.51 km² overlap
Brinton Timber
IUCN VLocal Conservation Area
1.31 km² overlap
Conservation Easement
1.03 km² overlap
Reserve Program
0.89 km² overlap
Rubio
IUCN VWildlife Area
0.40 km² overlap
4 more protected areassorted by overlap area
Schmitter
IUCN VHeritage Area
0.31 km² overlap
Pool
IUCN VWildlife Management Area
0.27 km² overlap
Watershed Protection
0.24 km² overlap
Horton Timber
IUCN VLocal Conservation Area
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
433 distinct species · 18 704 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 Skunk River : 28 espèces reliées par 73 interactions GloBI sur 4 types (connectance 11.0%, filtre Serrano α=0.2). 9 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°
10,1°C
Annual rain
896mm
Moisture idx (CMI)
-0,15
Runoff
268mm/an
PET
1 053mm
AET
757mm
Mean slope
1,2°
Water table
79cm
Forest
4%
Crops
80%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)