Ontologia

HydroBASINS lev08 watershed · #7080337150

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 : Chelan, Douglas, Okanogan

Pfafstetter: 78261705

Sub-basin area

339km²

Upstream area

224 529,9km²

Discharge

3 310,72m³/s

Mean elev.

667m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Columbia River317 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • BeeBe

    IUCN V

    Wildlife Area Complex

    0.72 km² overlap

  • Methow Rapids

    IUCN V

    Natural Area Preserve

    0.32 km² overlap

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

Species present

672 distinct species · 24 227 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

24 227 obs · 10 cellules
Obs. / cellule
≥ 16 004
16 004–16 003
1 958–16 003
669–1 957
< 669

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

Ecological tissue

Sample of 31 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 : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 65 interactions GloBI sur 5 types (connectance 13.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
65
Connectance
0.131
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°

7,8°C

Annual rain

322mm

Moisture idx (CMI)

-0,66

Runoff

226mm/an

PET

957mm

AET

279mm

Mean slope

11,1°

Water table

657cm

Forest

47%

Crops

23%

Urban

0%

Protected

0%

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