HydroBASINS lev08 watershed · #7080512060
Bassin de Iowa 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 : Des Moines, Louisa, Muscatine, Washington
Sub-basin area
982,7km²
Upstream area
32 555,9km²
Discharge
284,02m³/s
Mean elev.
205m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Cedar River906 km²
- Bassin de Iowa River429 km²
4 dept-equivalent regions (GADM L2)
- LouisaIowa · United States676.8 km²68.8% of basin
- WashingtonIowa · United States224.3 km²22.8% of basin
- Des MoinesIowa · United States63.7 km²6.5% of basin
- MuscatineIowa · United States19.3 km²2.0% of basin
15 intersecting protected areas
Reserve Program
17.40 km² overlap
Reserve Program
13.82 km² overlap
Wapello Bottoms
IUCN VWildlife Management Area
10.36 km² overlap
Port Louisa
IUCN IVNational Wildlife Refuge
10.28 km² overlap
Millrace Flats
IUCN VWildlife Management Area
5.45 km² overlap
Reserve Program
4.79 km² overlap
Indian Slough
IUCN VWildlife Area
4.42 km² overlap
Watershed Protection
2.82 km² overlap
Cairo Woods
IUCN VWildlife Area
2.12 km² overlap
6 more protected areassorted by overlap area
Lake Odessa
IUCN VWildlife Management Area
1.74 km² overlap
Conservation Easement
0.55 km² overlap
Wildlife Management Area
0.43 km² overlap
Virginia Grove
IUCN VRecreation Area
0.31 km² overlap
Baird Timber
IUCN VLocal Conservation Area
0.08 km² overlap
Toolesboro Mounds
IUCN VState Preserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 173 distinct species · 23 144 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Iowa River : 29 espèces reliées par 99 interactions GloBI sur 4 types (connectance 13.4%, 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°
10,2°C
Annual rain
908mm
Moisture idx (CMI)
-0,14
Runoff
260mm/an
PET
1 052mm
AET
768mm
Mean slope
0,7°
Water table
69cm
Forest
7%
Crops
61%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)