HydroBASINS lev08 watershed · #7080509940
Bassin de North Skunk 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 : Jasper, Keokuk, Mahaska, Marshall, Poweshiek +1
Sub-basin area
2 247,8km²
Upstream area
2 247,8km²
Discharge
19,48m³/s
Mean elev.
263m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- KeokukIowa · United States656.3 km²29.2% of basin
- JasperIowa · United States597.8 km²26.6% of basin
- MahaskaIowa · United States418.7 km²18.6% of basin
- PoweshiekIowa · United States379.7 km²16.9% of basin
- MarshallIowa · United States198.4 km²8.8% of basin
- StoryIowa · United States0.1 km²0.0% of basin
26 intersecting protected areas
Hawthorn Lake
IUCN VWildlife Management Area
7.18 km² overlap
Rock Creek
IUCN VWildlife Management Area
3.43 km² overlap
Fox Forest
IUCN VWildlife Area
1.93 km² overlap
Jacob Krumm
IUCN VNature Preserve
1.84 km² overlap
Diamond Lake
IUCN VWildlife Area
1.71 km² overlap
Millgrove Access
IUCN VWildlife Area
1.08 km² overlap
Reserve Program
0.96 km² overlap
Watershed Protection
0.57 km² overlap
Reimer
IUCN VRefuge
0.49 km² overlap
17 more protected areassorted by overlap area
Reserve Program
0.33 km² overlap
Ever-Tru Natural
IUCN VWilderness Area
0.30 km² overlap
Kellogg
IUCN VWildlife Management Area
0.28 km² overlap
Farm Service Agency Interest Of Ia
IUCN Not AssignedConservation Easement
0.27 km² overlap
Reserve Program
0.24 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Poweshiek, IA
IUCN VConservation Easement
0.21 km² overlap
Sugar Creek Audubon
IUCN VNature Sanctuary
0.20 km² overlap
Yahn
IUCN VRefuge
0.17 km² overlap
Bluepoint Woods Audubon
IUCN VNature Sanctuary
0.15 km² overlap
Fleming Woods
IUCN VState Preserve
0.14 km² overlap
Bryan Woods
IUCN VLocal Conservation Area
0.09 km² overlap
Potato Creek Prairie
IUCN VWildlife Area
0.08 km² overlap
Local Conservation Area
0.07 km² overlap
Alderson
IUCN VWildlife Area
0.05 km² overlap
Wehrmann Prairie
IUCN VLocal Conservation Area
0.04 km² overlap
North Skunk
IUCN VWildlife Area
0.02 km² overlap
Snipe Creek
IUCN VWildlife Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 433 distinct species · 66 296 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 North Skunk River : 26 espèces reliées par 72 interactions GloBI sur 3 types (connectance 12.1%, 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°
9,2°C
Annual rain
886mm
Moisture idx (CMI)
-0,13
Runoff
267mm/an
PET
1 020mm
AET
750mm
Mean slope
1,6°
Water table
96cm
Forest
1%
Crops
79%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)