HydroBASINS lev08 watershed · #7080395400

Bassin · #7080395400

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 2 administrative regions : Marshall, Roberts

142% lakePfafstetter: 74295466

Sub-basin area

338,7km²

Upstream area

338,7km²

Discharge

0,4m³/s

Mean elev.

565m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #7080397960422 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

Marshall
South Dakota · United States
333.8 km²
98.3% of basin
Roberts
South Dakota · United States
5.6 km²
1.7% of basin

30 intersecting protected areas

Marshall County
IUCN V
Waterfowl Production Area
40.16 km² overlap
Marshall County
IUCN V
Waterfowl Production Area
10.05 km² overlap
Four Mile-clubhouse-barretts
IUCN V
State Wildlife Management Area
6.09 km² overlap
Roy
IUCN V
Lake
5.69 km² overlap
Marshall County
IUCN V
Waterfowl Production Area
4.99 km² overlap
Cattail
IUCN V
State Wildlife Management Area
4.20 km² overlap
Clear Lake
IUCN V
Wildlife Management Area
3.15 km² overlap
Marshall County
IUCN V
Waterfowl Production Area
2.37 km² overlap
Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Marshall, SD
IUCN V
Watershed Protection
2.33 km² overlap

21 more protected areassorted by overlap area

Marshall County
IUCN V
Waterfowl Production Area
2.29 km² overlap
Marshall County
IUCN V
Waterfowl Production Area
2.01 km² overlap
Ft. Sisseton + 40
IUCN V
State Wildlife Management Area
1.78 km² overlap
Larson's Slough
IUCN V
State Wildlife Management Area
1.45 km² overlap
Roy
IUCN V
Lake
1.29 km² overlap
Roberts County
IUCN V
Waterfowl Production Area
1.27 km² overlap
Marshall County
IUCN V
Waterfowl Production Area
0.92 km² overlap
Holman
IUCN V
State Wildlife Management Area
0.73 km² overlap
Roberts County
IUCN V
Waterfowl Production Area
0.67 km² overlap
Wetlands Reserve Program (WRP), Marshall, SD
IUCN V
Reserve Program
0.63 km² overlap
Fort Sisseton
IUCN V
State Recreation Area
0.58 km² overlap
Marshall County
IUCN V
Waterfowl Production Area
0.56 km² overlap
Turtlefoot
IUCN V
State Wildlife Management Area
0.41 km² overlap
Marshall County
IUCN V
Waterfowl Production Area
0.39 km² overlap
Willianson Slough
IUCN V
State Wildlife Management Area
0.34 km² overlap
Little Cottonwood
IUCN V
State Wildlife Management Area
0.33 km² overlap
Cottonwood
IUCN V
Lake
0.32 km² overlap
Chokecherry Island
IUCN V
State Wildlife Management Area
0.31 km² overlap
Horseshoe
IUCN V
State Wildlife Management Area
0.22 km² overlap
Sorbell
IUCN V
State Wildlife Management Area
0.22 km² overlap
North Red Iron
IUCN V
State Wildlife Management Area
0.21 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

490 distinct species · 8 614 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 38 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin · #7080395400 : 32 espèces reliées par 79 interactions GloBI sur 4 types (connectance 11.2%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.112

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

5,6°C

Annual rain

523mm

Moisture idx (CMI)

-0,43

Runoff

33mm/an

PET

921mm

AET

450mm

Mean slope

1,1°

Water table

46cm

Forest

61%

Crops

51%

Urban

Protected

14%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)