Ontologia

HydroBASINS lev08 watershed · #7080278300

Bassin de Squamish 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 1 administrative regions : Squamish-Lillooet

Pfafstetter: 78331028

Sub-basin area

346,4km²

Upstream area

346,4km²

Discharge

15,09m³/s

Mean elev.

1 554m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Squamish River249 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

187 distinct species · 282 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

282 obs · 11 cellules
Obs. / cellule
≥ 107
39–106
33–38
16–32
< 16

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

Ecological tissue

Sample of 48 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 Squamish River : 41 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 69 interactions GloBI sur 5 types (connectance 6.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
48
Interactions affichées
69
Connectance
0.061
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°

1,8°C

Annual rain

953mm

Moisture idx (CMI)

0,36

Runoff

1 373mm/an

PET

610mm

AET

477mm

Mean slope

18,5°

Water table

592cm

Forest

16%

Crops

0%

Urban

0%

Protected

1%

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