HydroBASINS lev08 watershed · #7080057030
Bassin de Muir 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 3 administrative regions across 2 countries : Capital, Cowichan Valley, San Juan
Sub-basin area
2 377,2km²
Upstream area
2 377,2km²
Discharge
1,1m³/s
Mean elev.
240m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 1488.2 km²62.4% of basin
- San Juan469.3 km²19.7% of basin
- 205.4 km²8.6% of basin
30 intersecting protected areas
San Juan Islands
IUCN VNational Monument
589.17 km² overlap
Marine Protected Area
589.17 km² overlap
Greater Victoria Water Supply Area
IUCN Not ApplicableWater Supply Area
201.72 km² overlap
Regional Park
41.23 km² overlap
Sea to Sea Regional Park
IUCN IbRegional Park
40.26 km² overlap
East Sooke Regional Park
IUCN IbRegional Park
14.74 km² overlap
JUAN DE FUCA PARK
IUCN IIA - Park
13.57 km² overlap
PCON3
IUCN VLocal Land Trust
10.86 km² overlap
GOWLLAND TOD PARK
IUCN IIA - Park
9.53 km² overlap
21 more protected areassorted by overlap area
Thetis Lake Regional Park
IUCN IVRegional Park
9.25 km² overlap
Mount Work Regional Park
IUCN IVRegional Park
7.55 km² overlap
Marine Protected Area
6.97 km² overlap
Turtleback
IUCN Not AssignedConservation Easement
6.34 km² overlap
National Park
5.10 km² overlap
GOLDSTREAM PARK
IUCN IIA - Park
4.56 km² overlap
SOOKE MOUNTAIN PARK
IUCN IIB - Park
4.51 km² overlap
Regional Park
4.44 km² overlap
National Park
3.52 km² overlap
GOWLLAND TOD PARK
IUCN IIA - Park
2.57 km² overlap
Friday Harbor Watershed
IUCN VWatershed
2.56 km² overlap
ȽÁU,WELṈEW̱/JOHN DEAN PARK
IUCN IIA - Park
1.74 km² overlap
JUAN DE FUCA PARK
IUCN IIA - Park
1.63 km² overlap
Roche Cove Regional Park
IUCN IVRegional Park
1.60 km² overlap
Matheson Lake Regional Park
IUCN IVRegional Park
1.57 km² overlap
Marine Protected Area
1.40 km² overlap
San Juan Islands
IUCN IVNational Wildlife Refuge
1.40 km² overlap
San Juan Islands
IUCN IbWilderness Area
1.26 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
1.26 km² overlap
Mount Wells Regional Park
IUCN IVRegional Park
1.20 km² overlap
Marine Protected Area
1.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
11 777 distinct species · 6 042 529 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Muir Creek : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 72 interactions GloBI sur 4 types (connectance 12.1%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
8,7°C
Annual rain
1 235mm
Moisture idx (CMI)
0,31
Runoff
1 113mm/an
PET
723mm
AET
518mm
Mean slope
7,8°
Water table
381cm
Forest
79%
Crops
5%
Urban
9%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)