Ontologia

HydroBASINS lev08 watershed · #7080397140

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 5 administrative regions : Clark, Hood River, Klickitat, Multnomah, Skamania

Pfafstetter: 78230030

Sub-basin area

1 882,1km²

Upstream area

608 027,3km²

Discharge

5 819,22m³/s

Mean elev.

625m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

5 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

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

Species present

4 377 distinct species · 459 694 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

459 694 obs · 57 cellules
Obs. / cellule
≥ 149 021
19 219–149 020
3 812–19 218
899–3 811
< 899

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

Ecological tissue

Sample of 34 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 : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 76 interactions GloBI sur 4 types (connectance 12.8%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
76
Connectance
0.128
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°

8,2°C

Annual rain

2 076mm

Moisture idx (CMI)

0,55

Runoff

1 393mm/an

PET

873mm

AET

639mm

Mean slope

13,5°

Water table

445cm

Forest

96%

Crops

2%

Urban

1%

Protected

14%

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