HydroBASINS lev08 watershed · #7080482160
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 2 administrative regions : Black Hawk, Tama
Sub-basin area
556,2km²
Upstream area
13 729,9km²
Discharge
126,66m³/s
Mean elev.
277m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Black Hawk Creek877 km²
- Bassin de Cedar River189 km²
2 dept-equivalent regions (GADM L2)
- Black HawkIowa · United States546.3 km²98.1% of basin
- TamaIowa · United States10.8 km²1.9% of basin
5 intersecting protected areas
Cedar River
IUCN VNatural Resource Area
2.36 km² overlap
Watershed Protection
0.84 km² overlap
Reserve Program
0.21 km² overlap
Schaefer
IUCN VNatural Area
0.19 km² overlap
Casebeer Heights
IUCN VAccess
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 065 distinct species · 72 234 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 : 29 espèces reliées par 79 interactions GloBI sur 3 types (connectance 11.2%, 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°
8,1°C
Annual rain
872mm
Moisture idx (CMI)
-0,11
Runoff
272mm/an
PET
981mm
AET
738mm
Mean slope
0,9°
Water table
66cm
Forest
2%
Crops
72%
Urban
6%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)