Ontologia

HydroBASINS lev08 watershed · #7080336800

Bassin de Snoqualmie 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 : King, Snohomish

3% lakePfafstetter: 78310605

Sub-basin area

240,5km²

Upstream area

1 776,3km²

Discharge

87,58m³/s

Mean elev.

147m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Snohomish River64 km²

2 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

1 605 distinct species · 240 111 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

240 111 obs · 7 cellules
Obs. / cellule
≥ 133 572
133 572–133 571
31 999–133 571
20 612–31 998
< 20 612

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 Snoqualmie River : 23 espèces reliées par 58 interactions GloBI sur 4 types (connectance 11.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
58
Connectance
0.117
Patrimoniales
0
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°

10,0°C

Annual rain

1 459mm

Moisture idx (CMI)

0,41

Runoff

1 339mm/an

PET

848mm

AET

657mm

Mean slope

5,1°

Water table

304cm

Forest

80%

Crops

3%

Urban

5%

Protected

1%

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