HydroBASINS lev08 watershed · #8080186110
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 2 administrative regions : Denali, Yukon-Koyukuk
Sub-basin area
1 817,8km²
Upstream area
86 015,2km²
Discharge
778,1m³/s
Mean elev.
133m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tanana River1193 km²
- Bassin de Swanneck Slough227 km²
2 dept-equivalent regions (GADM L2)
- 1768.8 km²96.7% of basin
- 60.9 km²3.3% of basin
1 intersecting protected areas
Minto Flats State
IUCN VGame Refuge
612.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
89 distinct species · 219 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 : 37 espèces reliées par 42 interactions GloBI sur 5 types (connectance 5.1%, filtre Serrano α=0.2). 4 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
350mm
Moisture idx (CMI)
-0,36
Runoff
169mm/an
PET
548mm
AET
307mm
Mean slope
4,9°
Water table
42cm
Forest
51%
Crops
0%
Urban
0%
Protected
34%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)