Ontologia

HydroBASINS lev08 watershed · #7080349030

Bassin de Little 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 3 administrative regions : Billings, Golden Valley, McKenzie

Pfafstetter: 74297851

Sub-basin area

1 960,9km²

Upstream area

17 542,3km²

Discharge

16,94m³/s

Mean elev.

772m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Little Missouri River2272 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

1 571 distinct species · 107 502 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

107 502 obs · 56 cellules
Obs. / cellule
≥ 37 885
2 557–37 884
513–2 556
209–512
< 209

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 40 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

Indicateurs du tissu écologique

Tissu écologique de Bassin de Little Missouri River : 28 espèces reliées par 123 interactions GloBI sur 4 types (connectance 15.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
123
Connectance
0.158
Patrimoniales
0
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°

5,9°C

Annual rain

385mm

Moisture idx (CMI)

-0,60

Runoff

50mm/an

PET

970mm

AET

336mm

Mean slope

3,7°

Water table

330cm

Forest

0%

Crops

17%

Urban

0%

Protected

9%

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