HydroBASINS lev08 watershed · #8080143910
Bassin de Selawik 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 : Northwest Arctic, Yukon-Koyukuk
Sub-basin area
1 253,4km²
Upstream area
1 253,5km²
Discharge
15,55m³/s
Mean elev.
348m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 686.0 km²54.4% of basin
- 576.0 km²45.6% of basin
1 intersecting protected areas
Selawik
IUCN IVNational Wildlife Refuge
689.78 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
276 distinct species · 787 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Selawik River : 31 espèces reliées par 24 interactions GloBI sur 3 types (connectance 3.6%, filtre Serrano α=0.2). 6 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°
-7,9°C
Annual rain
305mm
Moisture idx (CMI)
-0,16
Runoff
472mm/an
PET
366mm
AET
261mm
Mean slope
9,0°
Water table
175cm
Forest
0%
Crops
0%
Urban
0%
Protected
60%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)