HydroBASINS lev08 watershed · #7080457480
Bassin de Donner und Blitzen 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 : Harney
Sub-basin area
2 092,2km²
Upstream area
2 092,2km²
Discharge
2,51m³/s
Mean elev.
1 628m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 2095.8 km²100.0% of basin
13 intersecting protected areas
BLM_CMPA
1091.46 km² overlap
Steens Mountain
IUCN IbWilderness Area
363.54 km² overlap
Malheur
IUCN IVNational Wildlife Refuge
278.64 km² overlap
Designated - Wild
108.93 km² overlap
Wilderness Study Area
71.79 km² overlap
Blitzen River
IUCN IbWilderness Study Area
71.15 km² overlap
Bridge Creek
IUCN IbWilderness Study Area
57.97 km² overlap
High Steens
IUCN IbWilderness Study Area
23.92 km² overlap
Kiger Creek
IUCN VDesignated - Wild
5.75 km² overlap
4 more protected areassorted by overlap area
Lower Stonehouse
IUCN IbWilderness Study Area
3.77 km² overlap
Reserve Program
2.19 km² overlap
Designated - Wild
0.19 km² overlap
Home Creek
IUCN IbWilderness Study Area
0.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 582 distinct species · 733 296 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Donner und Blitzen River : 23 espèces reliées par 69 interactions GloBI sur 3 types (connectance 13.1%, filtre Serrano α=0.2). 10 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°
6,2°C
Annual rain
311mm
Moisture idx (CMI)
-0,69
Runoff
99mm/an
PET
1 036mm
AET
270mm
Mean slope
5,4°
Water table
858cm
Forest
0%
Crops
3%
Urban
0%
Protected
36%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)