HydroBASINS lev08 watershed · #7080474550
Bassin de West Fork 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 6 administrative regions : Black Hawk, Bremer, Butler, Cerro Gordo, Franklin +1
Sub-basin area
2 228km²
Upstream area
2 228km²
Discharge
19,45m³/s
Mean elev.
338m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- FranklinIowa · United States1014.2 km²45.4% of basin
- ButlerIowa · United States651.7 km²29.2% of basin
- Cerro GordoIowa · United States535.8 km²24.0% of basin
- Black HawkIowa · United States15.1 km²0.7% of basin
- HancockIowa · United States11.6 km²0.5% of basin
- BremerIowa · United States3.5 km²0.2% of basin
30 intersecting protected areas
Big Marsh
IUCN VWildlife Management Area
23.68 km² overlap
Cerro Gordo County
IUCN VIWaterfowl Production Area
9.91 km² overlap
Watershed Protection
7.21 km² overlap
Reserve Program
7.12 km² overlap
Reserve Program
4.22 km² overlap
Reserve Program
3.96 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Butler, IA
IUCN Not AssignedConservation Easement
3.56 km² overlap
Conservation Easement
2.07 km² overlap
Creeden Prairie
IUCN VLocal Conservation Area
1.65 km² overlap
21 more protected areassorted by overlap area
Reserve Program
1.64 km² overlap
Reserve Program
1.51 km² overlap
Watershed Protection
1.35 km² overlap
Zirbel Slough
IUCN VLocal Conservation Area
1.34 km² overlap
Welch
IUCN VWildlife Area
1.24 km² overlap
Maynes Grove
IUCN VGrove
1.10 km² overlap
Boylan Creek
IUCN VWildlife Area
0.87 km² overlap
Conservation Easement
0.77 km² overlap
West Fork
IUCN VWildlife Management Area
0.76 km² overlap
Reserve Program
0.69 km² overlap
North Butler
IUCN VWilderness Area
0.61 km² overlap
Turkey Ridge
IUCN VWildlife Area
0.57 km² overlap
West Fork
IUCN VWildlife Area
0.46 km² overlap
Grove
0.46 km² overlap
West Fork
IUCN VAccess
0.46 km² overlap
Long Spur Habitat Area-L
IUCN VHabitat Area
0.41 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Cerro Gordo, IA
IUCN Not AssignedConservation Easement
0.40 km² overlap
Thorn Apple Woods
IUCN VLocal Conservation Area
0.37 km² overlap
Considine
IUCN VLake
0.34 km² overlap
Deer Meadow
IUCN VWildlife Area
0.33 km² overlap
Kyle
IUCN VWildlife Refuge
0.32 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 065 distinct species · 28 552 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 West Fork Cedar River : 28 espèces reliées par 70 interactions GloBI sur 3 types (connectance 11.1%, 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°
7,7°C
Annual rain
841mm
Moisture idx (CMI)
-0,13
Runoff
271mm/an
PET
965mm
AET
713mm
Mean slope
0,7°
Water table
50cm
Forest
2%
Crops
83%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)