HydroBASINS lev08 watershed · #7080391600
Bassin de Cottonwood Slough
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 3 administrative regions : Richland, Roberts, Traverse
Sub-basin area
875km²
Upstream area
875km²
Discharge
2,3m³/s
Mean elev.
338m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 596.7 km²68.0% of basin
- 150.8 km²17.2% of basin
- Richland129.6 km²14.8% of basin
29 intersecting protected areas
Reserve Program
11.88 km² overlap
Richland County
IUCN VIWaterfowl Production Area
8.86 km² overlap
Roberts County
IUCN VWaterfowl Production Area
2.49 km² overlap
Roberts County
IUCN VWaterfowl Production Area
1.85 km² overlap
Traverse County
IUCN VIWaterfowl Production Area
1.42 km² overlap
Harmon (dry Run #3)
IUCN VState Wildlife Management Area
1.11 km² overlap
Reserve Program
1.03 km² overlap
Roberts County
IUCN VWaterfowl Production Area
0.99 km² overlap
Dry Run #2
IUCN VState Wildlife Management Area
0.97 km² overlap
20 more protected areassorted by overlap area
Crawford (dry Run)
IUCN VState Wildlife Management Area
0.95 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Roberts, SD
IUCN VConservation Easement
0.93 km² overlap
Richland County
IUCN VWaterfowl Production Area
0.66 km² overlap
Reserve Program
0.62 km² overlap
Martin County
IUCN VWaterfowl Production Area
0.50 km² overlap
Victor
IUCN VState Wildlife Management Area
0.49 km² overlap
Diamond
IUCN VState Wildlife Management Area
0.41 km² overlap
Knutson (dry Run)
IUCN VState Wildlife Management Area
0.33 km² overlap
Dobberstein
IUCN VState Wildlife Management Area
0.31 km² overlap
Roberts County
IUCN VWaterfowl Production Area
0.28 km² overlap
Reserve Program
0.23 km² overlap
Traverse
IUCN VState Wildlife Management Area
0.21 km² overlap
Knebel Slough
IUCN VState Wildlife Management Area
0.16 km² overlap
Braaten
IUCN VState Wildlife Management Area
0.15 km² overlap
Reserve Program
0.11 km² overlap
Waldo
IUCN VState Wildlife Management Area
0.11 km² overlap
Sather Slough
IUCN VState Wildlife Management Area
0.11 km² overlap
Reserve Program
0.08 km² overlap
Pope County
IUCN VWaterfowl Production Area
0.06 km² overlap
Jensen's Addition
IUCN VState Wildlife Management Area
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
741 distinct species · 14 997 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 Cottonwood Slough : 25 espèces reliées par 67 interactions GloBI sur 3 types (connectance 11.3%, filtre Serrano α=0.2). 10 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°
6,3°C
Annual rain
534mm
Moisture idx (CMI)
-0,43
Runoff
83mm/an
PET
944mm
AET
460mm
Mean slope
0,5°
Water table
33cm
Forest
26%
Crops
76%
Urban
0%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)