HydroBASINS lev08 watershed · #7080020100
Bassin de North Arm Stikine 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 : Wrangell-Petersburg
Sub-basin area
308,6km²
Upstream area
308,6km²
Discharge
22,14m³/s
Mean elev.
330m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 288.2 km²92.9% of basin
1 intersecting protected areas
Stikine-Leconte
IUCN IbWilderness
273.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
472 distinct species · 3 576 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 North Arm Stikine River : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 88 interactions GloBI sur 3 types (connectance 14.8%, filtre Serrano α=0.2). 15 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°
4,5°C
Annual rain
1 839mm
Moisture idx (CMI)
0,71
Runoff
2 245mm/an
PET
539mm
AET
527mm
Mean slope
16,7°
Water table
551cm
Forest
33%
Crops
0%
Urban
0%
Protected
84%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)