HydroBASINS lev08 watershed · #7080452140
Bassin de Malheur 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 : Harney, Malheur
Sub-basin area
383,6km²
Upstream area
2 801km²
Discharge
10,36m³/s
Mean elev.
1 211m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Cottonwood Creek399 km²
- Bassin de Malheur River29 km²
2 dept-equivalent regions (GADM L2)
- 289.6 km²75.4% of basin
- 94.7 km²24.6% of basin
1 intersecting protected areas
Riverside
IUCN VWildlife Area
7.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
297 distinct species · 1 323 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Malheur River : 27 espèces reliées par 116 interactions GloBI sur 4 types (connectance 12.3%, filtre Serrano α=0.2). 17 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°
7,7°C
Annual rain
292mm
Moisture idx (CMI)
-0,74
Runoff
129mm/an
PET
1 113mm
AET
253mm
Mean slope
6,3°
Water table
851cm
Forest
0%
Crops
4%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)