Ontologia

HydroBASINS lev08 watershed · #7080311990

Bassin de Granite Creek

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 4 administrative regions : Chelan, Okanogan, Skagit, Whatcom

Pfafstetter: 78310808

Sub-basin area

568,8km²

Upstream area

568,8km²

Discharge

10,91m³/s

Mean elev.

1 568m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Skagit River973 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

1 273 distinct species · 22 528 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 528 obs · 18 cellules
Obs. / cellule
≥ 10 404
3 574–10 403
664–3 573
314–663
< 314

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

Ecological tissue

Sample of 35 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 Granite Creek : 19 espèces reliées par 103 interactions GloBI sur 6 types (connectance 13.9%, filtre Serrano α=0.2). 20 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
103
Connectance
0.139
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°

2,0°C

Annual rain

986mm

Moisture idx (CMI)

0,31

Runoff

778mm/an

PET

673mm

AET

483mm

Mean slope

26,7°

Water table

959cm

Forest

86%

Crops

0%

Urban

0%

Protected

39%

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