HydroBASINS lev08 watershed · #7080477770
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 1 administrative regions : Black Hawk
Sub-basin area
188,8km²
Upstream area
12 296,7km²
Discharge
114,47m³/s
Mean elev.
279m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Beaver Creek1009 km²
- Bassin de Cedar River20 km²
1 dept-equivalent regions (GADM L2)
- Black HawkIowa · United States189.1 km²100.0% of basin
4 intersecting protected areas
Hartman Reserve
IUCN VNature Center
0.99 km² overlap
Beaver Creek
IUCN VAccess
0.33 km² overlap
Hartman Bluff
IUCN VState Preserve
0.19 km² overlap
Reserve Program
0.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 233 distinct species · 142 638 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 77 interactions GloBI sur 3 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°
8,0°C
Annual rain
870mm
Moisture idx (CMI)
-0,11
Runoff
271mm/an
PET
972mm
AET
736mm
Mean slope
0,9°
Water table
65cm
Forest
3%
Crops
55%
Urban
21%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)