Ontologia

HydroBASINS lev08 watershed · #7080685480

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 : Clark, Nevada, Ouachita

17% lakePfafstetter: 74222963

Sub-basin area

354,2km²

Upstream area

4 542,7km²

Discharge

71,21m³/s

Mean elev.

78m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Little Missouri River9 km²

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

620 distinct species · 3 801 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 801 obs · 9 cellules
Obs. / cellule
≥ 2 855
2 855–2 854
62–2 854
16–61
< 16

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

Ecological tissue

Sample of 41 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 : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 4 types (connectance 9.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
85
Connectance
0.094
Patrimoniales
1
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°

16,7°C

Annual rain

1 327mm

Moisture idx (CMI)

-0,04

Runoff

464mm/an

PET

1 389mm

AET

1 046mm

Mean slope

1,5°

Water table

74cm

Forest

100%

Crops

1%

Urban

0%

Protected

13%

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