HydroBASINS lev08 watershed · #8080000840
Bassin de Sheridan 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 1 administrative regions : Valdez-Cordova
Sub-basin area
60,2km²
Upstream area
60,2km²
Discharge
4,72m³/s
Mean elev.
29m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 60.0 km²99.1% of basin
1 intersecting protected areas
Copper River Delta
IUCN VCritical Habitat Area
34.79 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
224 distinct species · 2 450 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Sheridan River : 23 espèces reliées par 109 interactions GloBI sur 4 types (connectance 19.4%, filtre Serrano α=0.2). 11 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°
3,6°C
Annual rain
2 170mm
Moisture idx (CMI)
0,77
Runoff
2 547mm/an
PET
495mm
AET
495mm
Mean slope
3,7°
Water table
66cm
Forest
5%
Crops
0%
Urban
0%
Protected
57%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)