HydroBASINS lev08 watershed · #7080508690
Bassin de Cedar 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 : Cedar, Johnson, Louisa, Muscatine
Sub-basin area
905,8km²
Upstream area
20 160,4km²
Discharge
180,4m³/s
Mean elev.
209m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Cedar River811 km²
- Bassin de Sugar Creek568 km²
4 dept-equivalent regions (GADM L2)
- MuscatineIowa · United States614.7 km²67.8% of basin
- CedarIowa · United States166.0 km²18.3% of basin
- JohnsonIowa · United States108.7 km²12.0% of basin
- LouisaIowa · United States17.8 km²2.0% of basin
20 intersecting protected areas
Reserve Program
8.91 km² overlap
Wiese Slough
IUCN VWildlife Management Area
7.57 km² overlap
Cedar Bottoms
IUCN VWildlife Management Area
6.65 km² overlap
Watershed Protection
6.56 km² overlap
Reserve Program
5.93 km² overlap
Lower Cedar River
IUCN VPrivate Conservation Land
5.64 km² overlap
Lower Cedar River Fee
IUCN VPrivate Conservation Land
4.42 km² overlap
Red Cedar
IUCN VWildlife Management Area
3.18 km² overlap
Red Cedar Woodland Fee
IUCN VPrivate Conservation Land
1.65 km² overlap
11 more protected areassorted by overlap area
Cone Lake Fee
IUCN VLake
1.06 km² overlap
Reserve Program
0.83 km² overlap
Cedar Bluffs
IUCN VRecreation Area
0.73 km² overlap
Reserve Program
0.71 km² overlap
Pike Run
IUCN VWildlife Area
0.71 km² overlap
Watershed Protection
0.59 km² overlap
Nature Preserve
0.47 km² overlap
Shield Prairie
IUCN VWildlife Management Area
0.34 km² overlap
Richardson
IUCN VWildlife Area
0.33 km² overlap
Wood Forest
IUCN VBotanical Preserve
0.16 km² overlap
Hora Woods
IUCN Not AssignedConservation Easement
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 587 distinct species · 39 603 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 Cedar River : 27 espèces reliées par 108 interactions GloBI sur 4 types (connectance 14.6%, filtre Serrano α=0.2). 12 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°
9,9°C
Annual rain
918mm
Moisture idx (CMI)
-0,12
Runoff
258mm/an
PET
1 041mm
AET
776mm
Mean slope
0,8°
Water table
60cm
Forest
8%
Crops
79%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)