HydroBASINS lev08 watershed · #7080012890
Bassin de Santa Ynez 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 : Santa Barbara, Ventura
Sub-basin area
2 334,4km²
Upstream area
2 334,4km²
Discharge
12,02m³/s
Mean elev.
571m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 2323.8 km²99.6% of basin
- 9.9 km²0.4% of basin
12 intersecting protected areas
Dick Smith
IUCN IbWilderness
135.30 km² overlap
San Rafael
IUCN IbWilderness
97.08 km² overlap
Sedgwick
IUCN VReserve
23.78 km² overlap
Burton Mesa
IUCN VEcological Reserve
20.92 km² overlap
Midland School Oak Woodlands
IUCN Not AssignedConservation Easement
10.71 km² overlap
Preserve
6.11 km² overlap
Rancho La Purisima
IUCN Not AssignedConservation Easement
4.78 km² overlap
Rancho Dos Vistas
IUCN Not AssignedConservation Easement
2.89 km² overlap
Big Pine Mountain
IUCN IaResearch Natural Area
1.78 km² overlap
3 more protected areassorted by overlap area
Matilija
IUCN IbWilderness
0.75 km² overlap
Mission Santa Inés
IUCN VPrivate Conservation
0.16 km² overlap
Marine Protected Area
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 266 distinct species · 493 275 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Ynez River : 32 espèces reliées par 89 interactions GloBI sur 3 types (connectance 9.9%, 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°
13,8°C
Annual rain
547mm
Moisture idx (CMI)
-0,53
Runoff
156mm/an
PET
1 178mm
AET
456mm
Mean slope
11,7°
Water table
537cm
Forest
73%
Crops
9%
Urban
2%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)