HydroBASINS lev08 watershed · #8080299350
Bassin de Elva Creek
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 : Dillingham
Sub-basin area
275,9km²
Upstream area
275,9km²
Discharge
5,49m³/s
Mean elev.
325m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 277.4 km²100.0% of basin
3 intersecting protected areas
Wood-tikchik
IUCN VState Park
213.41 km² overlap
Togiak
IUCN IbWilderness Area
62.73 km² overlap
Togiak
IUCN IVNational Wildlife Refuge
62.73 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
33 distinct species · 36 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 Elva Creek : 9 espèces reliées par 6 interactions GloBI sur 4 types (connectance 16.7%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
-1,3°C
Annual rain
598mm
Moisture idx (CMI)
0,27
Runoff
681mm/an
PET
435mm
AET
362mm
Mean slope
19,7°
Water table
548cm
Forest
7%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)