Ontologia

HydroBASINS lev08 watershed · #7080395950

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 : Klickitat, Wasco

Pfafstetter: 78230090

Sub-basin area

139,3km²

Upstream area

599 081,4km²

Discharge

5 598,19m³/s

Mean elev.

319m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de South Fork Mill Creek387 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

962 distinct species · 38 357 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

38 357 obs · 4 cellules
Obs. / cellule
≥ 20 410
20 410–20 409
7 562–20 409
7 562–7 561
< 7 562

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

Ecological tissue

Sample of 32 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 : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 4 types (connectance 18.0%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
95
Connectance
0.180
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°

10,3°C

Annual rain

391mm

Moisture idx (CMI)

-0,63

Runoff

254mm/an

PET

1 068mm

AET

328mm

Mean slope

9,4°

Water table

538cm

Forest

13%

Crops

52%

Urban

0%

Protected

9%

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