HydroBASINS lev08 watershed · #7080470280
Bassin de Clay Creek
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 4 administrative regions : Clay, Hutchinson, Turner, Yankton
Sub-basin area
668,2km²
Upstream area
668,2km²
Discharge
2,78m³/s
Mean elev.
419m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 336.1 km²50.2% of basin
- Clay218.2 km²32.6% of basin
- Turner75.6 km²11.3% of basin
- 39.5 km²5.9% of basin
12 intersecting protected areas
Marindahl
IUCN VLake
2.46 km² overlap
Yankton County
IUCN VWaterfowl Production Area
1.76 km² overlap
Volin Clay
IUCN VState Wildlife Management Area
1.31 km² overlap
Conservation Easement
0.92 km² overlap
Yankton County
IUCN VIWaterfowl Production Area
0.38 km² overlap
Storm Break
IUCN VState Wildlife Management Area
0.33 km² overlap
Wetlands Reserve Program (WRP)
IUCN Not AssignedReserve Program
0.28 km² overlap
Hutchinson County
IUCN VWaterfowl Production Area
0.16 km² overlap
Reserve Program
0.15 km² overlap
3 more protected areassorted by overlap area
Turner County
IUCN VWaterfowl Production Area
0.13 km² overlap
Vermillion Prairie Fee
IUCN VPrivate Conservation Land
0.08 km² overlap
Christensen Slough
IUCN VState Wildlife Management Area
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
423 distinct species · 2 711 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Clay Creek : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 101 interactions GloBI sur 4 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
613mm
Moisture idx (CMI)
-0,40
Runoff
111mm/an
PET
1 028mm
AET
524mm
Mean slope
1,0°
Water table
164cm
Forest
7%
Crops
94%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)