HydroBASINS lev08 watershed · #7080012340
Bassin de San Diego 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 : San Diego
Sub-basin area
1 275,4km²
Upstream area
1 275,4km²
Discharge
4,28m³/s
Mean elev.
507m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 1267.7 km²99.4% of basin
30 intersecting protected areas
Crestridge
IUCN VEcological Reserve
10.62 km² overlap
El Capitan
IUCN VPreserve
10.54 km² overlap
Preserve
10.41 km² overlap
Boulder Oaks Open Spac
IUCN VOpen Space
8.06 km² overlap
Mt. Gower
IUCN VPreserve
5.88 km² overlap
King Creek
IUCN IaResearch Natural Area
4.01 km² overlap
Barnett Ranch
IUCN VPreserve
2.90 km² overlap
Silverwood
IUCN VWildlife Sanctuary
2.87 km² overlap
Santa Ysabel
IUCN VPreserve
2.68 km² overlap
21 more protected areassorted by overlap area
Eagle Peak
IUCN VPreserve
2.54 km² overlap
El Cajon Mountain
IUCN VPreserve
2.38 km² overlap
Oakoasis
IUCN VPreserve
1.79 km² overlap
Simon
IUCN VPreserve
1.52 km² overlap
Eagle Peak Ranch
IUCN VPrivate Conservation
1.52 km² overlap
Rattlesnake Mountain
IUCN VPrivate Conservation
1.31 km² overlap
Peutz Creek
IUCN VPreserve
1.21 km² overlap
Blossom Valley Habitat
IUCN VConservation Area
1.16 km² overlap
East Elliott
IUCN VPreserve
0.80 km² overlap
Santa Ysabel
IUCN VEasement
0.67 km² overlap
Hanson Property
IUCN VPrivate Conservation
0.57 km² overlap
Walker
IUCN VPreserve
0.36 km² overlap
Luelf Pond
IUCN VPreserve
0.35 km² overlap
Elliott Chaparral
IUCN VReserve
0.22 km² overlap
Woodridge
IUCN VPreserve
0.21 km² overlap
Mission Valley
IUCN VPreserve
0.20 km² overlap
Cuyamaca
IUCN VEasement
0.15 km² overlap
Famosa Slough
IUCN VWildlife Reserve
0.13 km² overlap
San Diego River
IUCN VEcological Reserve
0.12 km² overlap
Boulder Creek
IUCN VEcological Reserve
0.12 km² overlap
Private Conservation
0.10 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 455 distinct species · 2 204 441 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 San Diego River : 28 espèces reliées par 77 interactions GloBI sur 4 types (connectance 10.4%, 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°
16,2°C
Annual rain
422mm
Moisture idx (CMI)
-0,69
Runoff
109mm/an
PET
1 355mm
AET
358mm
Mean slope
8,5°
Water table
596cm
Forest
49%
Crops
2%
Urban
30%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)