HydroBASINS lev08 watershed · #7080056400
Bassin de Benson 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 : Comox-Strathcona, Mount Waddington
Sub-basin area
572,3km²
Upstream area
572,3km²
Discharge
37,65m³/s
Mean elev.
484m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 569.5 km²99.2% of basin
- 4.7 km²0.8% of basin
10 intersecting protected areas
Old Growth Management Areas (Mapped Legal)
IUCN Not ApplicableOld Growth Management Areas (Mapped Legal)
44.03 km² overlap
MARBLE RIVER PARK
IUCN IIA - Park
4.76 km² overlap
TAHSISH-KWOIS PARK
IUCN IbA - Park
0.41 km² overlap
MARBLE RIVER PARK
IUCN IIA - Park
0.25 km² overlap
Marble River Estuary
IUCN IVPrivately Owned Conservation Area
0.16 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.11 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.04 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
0.02 km² overlap
NIMPKISH LAKE PARK
IUCN IIA - Park
0.02 km² overlap
1 more protected areassorted by overlap area
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
569 distinct species · 2 582 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Benson River : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 5 types (connectance 7.8%, filtre Serrano α=0.2). 10 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°
6,6°C
Annual rain
2 110mm
Moisture idx (CMI)
0,74
Runoff
2 375mm/an
PET
555mm
AET
520mm
Mean slope
17,8°
Water table
580cm
Forest
88%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)