Ontologia

HydroBASINS lev08 watershed · #7080294590

Bassin de Similkameen 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 4 administrative regions across 2 countries : Fraser Valley, Okanagan-Similkameen, Okanogan, Whatcom

Pfafstetter: 78262029

Sub-basin area

1 819,9km²

Upstream area

1 819,9km²

Discharge

21,35m³/s

Mean elev.

1 571m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Summers Creek625 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

3 323 distinct species · 114 480 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

114 480 obs · 57 cellules
Obs. / cellule
≥ 45 095
3 777–45 094
343–3 776
64–342
< 64

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

Ecological tissue

Sample of 37 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 Similkameen River : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 91 interactions GloBI sur 5 types (connectance 12.3%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
91
Connectance
0.123
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°

1,9°C

Annual rain

625mm

Moisture idx (CMI)

-0,09

Runoff

416mm/an

PET

690mm

AET

444mm

Mean slope

16,0°

Water table

625cm

Forest

90%

Crops

0%

Urban

0%

Protected

51%

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