Ontologia

HydroBASINS lev08 watershed · #7080383410

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 3 administrative regions : Columbia, Cowlitz, Multnomah

2% lakePfafstetter: 78210050

Sub-basin area

255,4km²

Upstream area

643 116,5km²

Discharge

7 183,11m³/s

Mean elev.

122m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Carrolls Channel27 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

1 056 distinct species · 229 378 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

229 378 obs · 7 cellules
Obs. / cellule
≥ 110 651
110 651–110 650
7 050–110 650
6 768–7 049
< 6 768

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

Ecological tissue

Sample of 25 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 : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 3 types (connectance 23.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
71
Connectance
0.237
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°

10,7°C

Annual rain

1 388mm

Moisture idx (CMI)

0,30

Runoff

1 188mm/an

PET

945mm

AET

649mm

Mean slope

5,2°

Water table

195cm

Forest

76%

Crops

10%

Urban

1%

Protected

0%

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