HydroBASINS lev08 watershed · #7080074650
Bassin de Chewaucan 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 : Lake
Sub-basin area
2 319,4km²
Upstream area
2 319,4km²
Discharge
0m³/s
Mean elev.
1 598m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Lake2323.2 km²100.0% of basin
6 intersecting protected areas
Abert Rim
IUCN IbWilderness Study Area
71.79 km² overlap
Scenic River
29.94 km² overlap
Gearhart Mountain
IUCN IbWilderness
21.92 km² overlap
Diablo Mountain
IUCN IbWilderness Study Area
8.26 km² overlap
Augur Creek
IUCN IaResearch Natural Area
7.99 km² overlap
Sycan, Oregon
IUCN VWild and Scenic River
0.36 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 405 distinct species · 32 078 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Chewaucan River : 24 espèces reliées par 109 interactions GloBI sur 5 types (connectance 18.3%, 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°
6,9°C
Annual rain
369mm
Moisture idx (CMI)
-0,64
Runoff
71mm/an
PET
1 036mm
AET
318mm
Mean slope
6,5°
Water table
644cm
Forest
45%
Crops
5%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)