HydroBASINS lev08 watershed · #7080012280
Bassin de Sweetwater 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
1 169,1km²
Upstream area
1 169,1km²
Discharge
0m³/s
Mean elev.
422m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 1142.9 km²97.8% of basin
30 intersecting protected areas
San Diego
IUCN IVNational Wildlife Refuge
50.14 km² overlap
Otay Mountain
IUCN IbWilderness Area
38.40 km² overlap
Hollenbeck Canyon
IUCN VWildlife Area
27.81 km² overlap
Rancho Jamul
IUCN VEcological Reserve
23.16 km² overlap
Otay Ranch
IUCN VPreserve
15.35 km² overlap
Sycuan Peak
IUCN VEcological Reserve
9.50 km² overlap
Otay Mountain
IUCN VEcological Reserve
5.06 km² overlap
Marine Protected Area
4.32 km² overlap
San Diego Bay
IUCN IVNational Wildlife Refuge
3.33 km² overlap
21 more protected areassorted by overlap area
Preserve
2.35 km² overlap
McGinty Mountain
IUCN VPreserve
2.34 km² overlap
South Crest Properties
IUCN VPrivate Conservation
2.30 km² overlap
Marine Protected Area
1.51 km² overlap
Marine Protected Area
1.45 km² overlap
Tijuana Slough
IUCN IVNational Wildlife Refuge
1.41 km² overlap
McGinty Mountain
IUCN VEcological Reserve
1.15 km² overlap
Gibson Property
IUCN VPrivate Conservation
1.02 km² overlap
Stoneridge
IUCN VPreserve
1.00 km² overlap
Marine Protected Area
0.65 km² overlap
Cabrillo
IUCN IIINational Monument
0.65 km² overlap
Crestridge
IUCN VEcological Reserve
0.54 km² overlap
Marine Protected Area
0.51 km² overlap
Kemerko Property
IUCN VPrivate Conservation
0.50 km² overlap
Dennery
IUCN VPreserve
0.40 km² overlap
O'Neal Canyon
IUCN VPreserve
0.39 km² overlap
Ulrich Property
IUCN VPrivate Conservation
0.38 km² overlap
Michelson Property
IUCN VPrivate Conservation
0.37 km² overlap
Ocean View Hills
IUCN VLocal Conservation Area
0.31 km² overlap
Chula Vista
IUCN VWildlife Reserve
0.25 km² overlap
Marine Protected Area
0.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 714 distinct species · 1 605 717 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Sweetwater River : 17 espèces reliées par 82 interactions GloBI sur 6 types (connectance 14.6%, filtre Serrano α=0.2). 17 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°
16,3°C
Annual rain
366mm
Moisture idx (CMI)
-0,72
Runoff
93mm/an
PET
1 321mm
AET
312mm
Mean slope
7,3°
Water table
542cm
Forest
50%
Crops
6%
Urban
34%
Protected
19%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)