HydroBASINS lev08 watershed · #8080182480
Bassin de Tanana 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 3 administrative regions : Denali, Fairbanks North Star, Yukon-Koyukuk
Sub-basin area
1 192,7km²
Upstream area
75 845,3km²
Discharge
738,58m³/s
Mean elev.
126m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tanana River249 km²
- Bassin de Tanana River10 km²
3 dept-equivalent regions (GADM L2)
- 1164.8 km²97.0% of basin
- 27.9 km²2.3% of basin
- 7.8 km²0.6% of basin
1 intersecting protected areas
Minto Flats State
IUCN VGame Refuge
209.59 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
443 distinct species · 2 581 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 51 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 Tanana River : 33 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 136 interactions GloBI sur 5 types (connectance 10.3%, filtre Serrano α=0.2). 19 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°
-3,9°C
Annual rain
324mm
Moisture idx (CMI)
-0,40
Runoff
202mm/an
PET
543mm
AET
289mm
Mean slope
3,2°
Water table
31cm
Forest
46%
Crops
0%
Urban
0%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)