HydroBASINS lev08 watershed · #7080012450
Bassin de San Luis Rey 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 : Riverside, San Diego
Sub-basin area
1 470,3km²
Upstream area
1 470,4km²
Discharge
5,68m³/s
Mean elev.
712m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 1463.1 km²99.6% of basin
- 6.6 km²0.4% of basin
30 intersecting protected areas
Agua Tibia
IUCN IbWilderness
19.01 km² overlap
Hellhole Canyon
IUCN VPreserve
8.94 km² overlap
San Ysidro Mountain
IUCN IbWilderness Study Area
7.91 km² overlap
San Felipe Hills
IUCN IbWilderness Study Area
4.09 km² overlap
Mt. Olympus
IUCN VPreserve
3.24 km² overlap
Wilderness Gardens
IUCN VPreserve
2.96 km² overlap
Plaisted Creek
IUCN VEcological Reserve
1.88 km² overlap
Monserate Mountain
IUCN VPreserve
1.39 km² overlap
Mesa Grande
IUCN VEasement
1.25 km² overlap
21 more protected areassorted by overlap area
Agua Tibia
IUCN IaResearch Natural Area
1.10 km² overlap
Mendenhall, David C.
IUCN VConservation Easement
0.86 km² overlap
Whelan
IUCN VPreserve
0.53 km² overlap
Pilgrim Creek
IUCN VEcological Reserve
0.45 km² overlap
Santa Margarita
IUCN VEcological Reserve
0.28 km² overlap
Conservation Area
0.26 km² overlap
San Luis Rey
IUCN Not AssignedConservation Easement
0.22 km² overlap
Granger
IUCN VPreserve
0.22 km² overlap
Preserve
0.21 km² overlap
Gird Valley
IUCN VPreserve
0.19 km² overlap
Preserve
0.19 km² overlap
Los Jilgueros
IUCN VPreserve
0.18 km² overlap
Unknown or Unnamed
IUCN Not AssignedConservation Easement
0.14 km² overlap
Wilmont
IUCN VPreserve
0.14 km² overlap
Private Conservation
0.13 km² overlap
Cheathem Acquisition
IUCN VPrivate Conservation
0.13 km² overlap
Bonsall
IUCN VPreserve
0.11 km² overlap
Gopher Canyon
IUCN VReserve
0.10 km² overlap
Knollwood
IUCN VPreserve
0.08 km² overlap
Appleton
IUCN VPreserve
0.08 km² overlap
Ramona Grasslands
IUCN VEasement
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 907 distinct species · 703 655 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Luis Rey River : 28 espèces reliées par 86 interactions GloBI sur 4 types (connectance 12.9%, filtre Serrano α=0.2). 9 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°
15,3°C
Annual rain
455mm
Moisture idx (CMI)
-0,66
Runoff
112mm/an
PET
1 357mm
AET
386mm
Mean slope
9,2°
Water table
550cm
Forest
63%
Crops
8%
Urban
6%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)