HydroBASINS lev08 watershed · #7080468710

Bassin de Missouri 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 4 administrative regions : Bon Homme, Cedar, Knox, Yankton

167% lakePfafstetter: 74295503

Sub-basin area

442,3km²

Upstream area

705 988,3km²

Discharge

948,34m³/s

Mean elev.

420m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Missouri River229 km²

▲ Receives from 2 basins

Bassin de Missouri River236 km²
Bassin de Missouri River102 km²

4 dept-equivalent regions (GADM L2)

Knox
Nebraska · United States
214.4 km²
48.4% of basin
Bon Homme
South Dakota · United States
108.2 km²
24.4% of basin
Yankton
South Dakota · United States
98.5 km²
22.2% of basin
Cedar
Nebraska · United States
21.9 km²
4.9% of basin

17 intersecting protected areas

Lewis And Clark
IUCN V
Recreation Area
4.24 km² overlap
Chief White Crane
IUCN V
Recreation Area
0.84 km² overlap
Yankton Unit
IUCN V
State Recreation Area
0.84 km² overlap
Downstream Day Use Area's
IUCN V
State Recreation Area
0.73 km² overlap
Tabor To Charley Creek
IUCN V
State Recreation Area
0.67 km² overlap
Boy Scout Camp To Tabor
IUCN V
Scout Camp
0.56 km² overlap
Yankton Island Unit
IUCN V
State Recreation Area
0.50 km² overlap
Charley Creek Unit
IUCN V
State Recreation Area
0.37 km² overlap
Tatanka
IUCN V
Wildlife Management Area
0.32 km² overlap

8 more protected areassorted by overlap area

Pierson Ranch
IUCN V
State Recreation Area
0.27 km² overlap
Tabor
IUCN V
Recreation Area
0.26 km² overlap
Missouri
IUCN V
National Recreation River
0.08 km² overlap
Cottonwood Campground
IUCN V
Campground
0.08 km² overlap
Powerhouse And Dam Unit
IUCN V
State Recreation Area
0.06 km² overlap
Gavins's Point To Lesterville
IUCN V
State Recreation Area
0.03 km² overlap
Hatchery Unit
IUCN V
State Recreation Area
0.03 km² overlap
Lesterville Unit
IUCN V
State Recreation Area
0.01 km² overlap

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

Species present

1 311 distinct species · 94 315 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Missouri River : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 65 interactions GloBI sur 3 types (connectance 10.9%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.109

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°

8,9°C

Annual rain

537mm

Moisture idx (CMI)

-0,49

Runoff

129mm/an

PET

1 048mm

AET

460mm

Mean slope

2,1°

Water table

225cm

Forest

14%

Crops

71%

Urban

Protected

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