Ontologia

HydroBASINS lev08 watershed · #7080434150

Bassin de Snake 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 : Malheur, Payette, Washington

Pfafstetter: 78291070

Sub-basin area

223,5km²

Upstream area

155 359,2km²

Discharge

655,92m³/s

Mean elev.

727m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Snake River768 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

440 distinct species · 5 429 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 429 obs · 6 cellules
Obs. / cellule
≥ 3 620
3 620–3 619
714–3 619
659–713
< 659

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

Ecological tissue

Sample of 39 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 Snake River : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 122 interactions GloBI sur 4 types (connectance 16.5%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
122
Connectance
0.165
Patrimoniales
2
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°

9,7°C

Annual rain

322mm

Moisture idx (CMI)

-0,72

Runoff

205mm/an

PET

1 174mm

AET

276mm

Mean slope

3,3°

Water table

547cm

Forest

10%

Crops

34%

Urban

0%

Protected

0%

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