HydroBASINS lev08 watershed · #8080228920
Bassin de Nabesna 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 : Southeast Fairbanks, Valdez-Cordova
Sub-basin area
2 027,2km²
Upstream area
4 995,4km²
Discharge
64,99m³/s
Mean elev.
1 095m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Nabesna River672 km²
- Bassin de Jack Creek468 km²
2 dept-equivalent regions (GADM L2)
- 1536.2 km²75.3% of basin
- 503.4 km²24.7% of basin
3 intersecting protected areas
Tetlin
IUCN IVNational Wildlife Refuge
1042.75 km² overlap
Wrangell-St. Elias
IUCN VNational Preserve
963.80 km² overlap
Kluane / Wrangell-St Elias / Glacier Bay / Tatshenshini-Alsek
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
959.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
346 distinct species · 1 248 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Nabesna River : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 94 interactions GloBI sur 4 types (connectance 12.1%, filtre Serrano α=0.2). 16 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°
-6,3°C
Annual rain
365mm
Moisture idx (CMI)
-0,25
Runoff
334mm/an
PET
494mm
AET
317mm
Mean slope
15,0°
Water table
399cm
Forest
10%
Crops
0%
Urban
0%
Protected
95%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)