HydroBASINS lev08 watershed · #8080005820
Bassin de Ungalik 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 : Nome, Yukon-Koyukuk
Sub-basin area
2 365,8km²
Upstream area
2 365,8km²
Discharge
4,04m³/s
Mean elev.
278m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 1904.6 km²80.0% of basin
- 441.0 km²18.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
192 distinct species · 695 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 Ungalik River : 19 espèces reliées par 93 interactions GloBI sur 4 types (connectance 12.6%, filtre Serrano α=0.2). 20 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°
-5,3°C
Annual rain
348mm
Moisture idx (CMI)
-0,03
Runoff
494mm/an
PET
360mm
AET
278mm
Mean slope
8,3°
Water table
194cm
Forest
0%
Crops
0%
Urban
0%
Protected
19%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)