HydroBASINS lev08 watershed · #7080079260
Bassin de Oriana 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 2 administrative regions : Harney, Malheur
Sub-basin area
1 096,8km²
Upstream area
1 096,8km²
Discharge
0,23m³/s
Mean elev.
1 476m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 859.3 km²78.2% of basin
- 239.4 km²21.8% of basin
12 intersecting protected areas
BLM_CMPA
238.31 km² overlap
Sheepshead Mountains
IUCN IbWilderness Study Area
174.52 km² overlap
Table Mountain
IUCN IbWilderness Study Area
161.82 km² overlap
Stonehouse
IUCN IbWilderness Study Area
86.42 km² overlap
Heath Lake
IUCN IbWilderness Study Area
85.91 km² overlap
Winter Range
IUCN IbWilderness Study Area
49.54 km² overlap
East Alvord
IUCN IbWilderness Study Area
35.36 km² overlap
West Peak
IUCN IbWilderness Study Area
30.00 km² overlap
Lower Stonehouse
IUCN IbWilderness Study Area
25.63 km² overlap
3 more protected areassorted by overlap area
Steens Mountain
IUCN IbWilderness Area
9.20 km² overlap
High Steens
IUCN IbWilderness Study Area
7.57 km² overlap
Wildcat Canyon
IUCN IbWilderness Study Area
4.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
822 distinct species · 6 788 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Oriana Creek : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 123 interactions GloBI sur 5 types (connectance 16.6%, filtre Serrano α=0.2). 14 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°
7,2°C
Annual rain
285mm
Moisture idx (CMI)
-0,74
Runoff
79mm/an
PET
1 093mm
AET
248mm
Mean slope
8,4°
Water table
951cm
Forest
0%
Crops
2%
Urban
0%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)