HydroBASINS lev08 watershed · #7080686330
Bassin de Santa Ana 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 3 administrative regions : Orange, Riverside, San Bernardino
Sub-basin area
197,1km²
Upstream area
5 983,1km²
Discharge
37,57m³/s
Mean elev.
228m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Santa Ana River3264 km²
- Bassin de Temescal Wash762 km²
3 dept-equivalent regions (GADM L2)
- Orange133.3 km²67.7% of basin
- 33.6 km²17.1% of basin
- 30.1 km²15.3% of basin
6 intersecting protected areas
Mountain
IUCN Not AssignedPark
6.05 km² overlap
Gypsum Canyon
IUCN VNature Preserve
6.01 km² overlap
Coal Canyon
IUCN VEcological Reserve
3.60 km² overlap
Fresno Canyon
IUCN VLocal Conservation Area
0.24 km² overlap
Fremont Canyon
IUCN VNature Preserve
0.14 km² overlap
Wetlands
IUCN VLocal Conservation Area
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 743 distinct species · 364 612 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Santa Ana River : 22 espèces reliées par 75 interactions GloBI sur 4 types (connectance 13.4%, filtre Serrano α=0.2). 12 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°
17,4°C
Annual rain
366mm
Moisture idx (CMI)
-0,74
Runoff
140mm/an
PET
1 412mm
AET
311mm
Mean slope
6,9°
Water table
453cm
Forest
37%
Crops
10%
Urban
57%
Protected
21%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)