HydroBASINS lev08 watershed · #7080502990
Bassin de English 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 : Iowa, Johnson, Keokuk, Mahaska, Poweshiek +1
Sub-basin area
1 664km²
Upstream area
1 664,1km²
Discharge
14,29m³/s
Mean elev.
250m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- IowaIowa · United States518.1 km²31.1% of basin
- PoweshiekIowa · United States477.2 km²28.6% of basin
- WashingtonIowa · United States337.9 km²20.3% of basin
- KeokukIowa · United States252.2 km²15.1% of basin
- JohnsonIowa · United States76.8 km²4.6% of basin
- MahaskaIowa · United States4.1 km²0.2% of basin
20 intersecting protected areas
English River
IUCN VWildlife Area
2.27 km² overlap
Reserve Program
1.87 km² overlap
Reserve Program
0.96 km² overlap
Deep River Timber
IUCN VWildlife Area
0.89 km² overlap
Reserve Program
0.81 km² overlap
Wildlife Area
0.65 km² overlap
Reserve Program
0.54 km² overlap
Watershed Protection
0.53 km² overlap
Berstler Woods
IUCN VLocal Conservation Area
0.27 km² overlap
11 more protected areassorted by overlap area
Wildlife Area
0.27 km² overlap
Pheasant Ridge
IUCN VLocal Conservation Area
0.20 km² overlap
Cecil Rivers Timber
IUCN VLocal Conservation Area
0.19 km² overlap
Lincoln
IUCN VWildlife Area
0.15 km² overlap
Butler Timber Reserve
IUCN VWildlife Area
0.08 km² overlap
Lantz
IUCN VWildlife Preserve
0.08 km² overlap
Foster Woods
IUCN VLocal Conservation Area
0.08 km² overlap
Coffman Woods
IUCN VPreserve
0.07 km² overlap
Farm Service Agency Interest Of Ia
IUCN Not AssignedConservation Easement
0.03 km² overlap
Pilot Grove
IUCN VState Preserve
0.02 km² overlap
Lincoln
IUCN VWildlife Management Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
855 distinct species · 19 103 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 English River : 29 espèces reliées par 100 interactions GloBI sur 4 types (connectance 12.8%, filtre Serrano α=0.2). 11 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°
9,4°C
Annual rain
894mm
Moisture idx (CMI)
-0,13
Runoff
270mm/an
PET
1 029mm
AET
757mm
Mean slope
1,5°
Water table
92cm
Forest
1%
Crops
78%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)