HydroBASINS lev08 watershed · #7080488280
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 5 administrative regions : Benton, Black Hawk, Buchanan, Linn, Tama
Sub-basin area
1 463,2km²
Upstream area
16 044km²
Discharge
146,3m³/s
Mean elev.
270m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Wolf Creek851 km²
- Bassin de Cedar River556 km²
5 dept-equivalent regions (GADM L2)
- BentonIowa · United States763.2 km²52.1% of basin
- BuchananIowa · United States344.3 km²23.5% of basin
- LinnIowa · United States169.1 km²11.5% of basin
- Black HawkIowa · United States163.6 km²11.2% of basin
- TamaIowa · United States25.4 km²1.7% of basin
30 intersecting protected areas
Dudgeon Lake
IUCN VWildlife Management Area
7.36 km² overlap
Cedar Island
IUCN VWildlife Area
2.40 km² overlap
Wickiup Hill
IUCN VNatural Area
2.02 km² overlap
Brett Klima
IUCN VWildlife Area
1.74 km² overlap
Wood Duck Bottoms
IUCN VWildlife Management Area
1.66 km² overlap
Crumbacher
IUCN VWildlife Area
1.45 km² overlap
Spring Creek Flats
IUCN VLocal Conservation Area
1.14 km² overlap
Goose Pond
IUCN VNatural Area
1.09 km² overlap
Red Fox
IUCN VWildlife Management Area
0.80 km² overlap
21 more protected areassorted by overlap area
Reserve Program
0.70 km² overlap
Pond
0.53 km² overlap
Blue Creek
IUCN VNatural Area
0.28 km² overlap
Hodges and North
IUCN VWildlife Area
0.27 km² overlap
Mc Farland Park
IUCN VWildlife Management Area
0.26 km² overlap
Fox Twp.
IUCN VWildlife Area
0.24 km² overlap
Twin Springs
IUCN VLocal Conservation Area
0.22 km² overlap
North Cedar
IUCN VNatural Area
0.19 km² overlap
Rowley Fen
IUCN VLocal Conservation Area
0.18 km² overlap
Butterfield Island
IUCN VWildlife Management Area
0.16 km² overlap
Bearbower Sand Prairie
IUCN VLocal Conservation Area
0.16 km² overlap
Franta
IUCN VWildlife Area
0.16 km² overlap
Polk Township
IUCN VWildlife Area
0.13 km² overlap
Sping Creek Geologic A
IUCN VLocal Conservation Area
0.13 km² overlap
County Care Facility
IUCN VWildlife Area
0.12 km² overlap
Pond
0.12 km² overlap
Edgerton
IUCN VReserve
0.12 km² overlap
Cedar River
IUCN VAccess
0.09 km² overlap
Reserve Program
0.08 km² overlap
Brett Kilma
IUCN VWildlife Management Area
0.06 km² overlap
Cedar River (NAWCA)
IUCN VWildlife Management Area
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 250 distinct species · 71 965 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 3 types (connectance 12.4%, filtre Serrano α=0.2). 8 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°
8,5°C
Annual rain
869mm
Moisture idx (CMI)
-0,13
Runoff
268mm/an
PET
1 000mm
AET
736mm
Mean slope
1,1°
Water table
85cm
Forest
7%
Crops
78%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)