Ontologia

HydroBASINS lev08 watershed · #7080382280

Bassin de Columbia 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 2 administrative regions : Benton, Walla Walla

3% lakePfafstetter: 78250900

Sub-basin area

488,6km²

Upstream area

531 052,2km²

Discharge

5 364,76m³/s

Mean elev.

221m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Columbia River622 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Mcnary

    IUCN IV

    National Wildlife Refuge

    41.73 km² overlap

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

Species present

967 distinct species · 258 267 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

258 267 obs · 13 cellules
Obs. / cellule
≥ 102 583
79 014–102 582
20 298–79 013
1 211–20 297
< 1 211

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

Ecological tissue

Sample of 27 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 Columbia River : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 3 types (connectance 16.5%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
58
Connectance
0.165
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°

11,5°C

Annual rain

257mm

Moisture idx (CMI)

-0,77

Runoff

30mm/an

PET

1 103mm

AET

224mm

Mean slope

2,0°

Water table

788cm

Forest

19%

Crops

79%

Urban

5%

Protected

8%

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