HydroBASINS lev08 watershed · #7080673470
Bassin de Sespe Creek
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
675,5km²
Upstream area
675,5km²
Discharge
3,71m³/s
Mean elev.
1 210m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 672.8 km²99.6% of basin
- 2.6 km²0.4% of basin
6 intersecting protected areas
Sespe
IUCN IbWilderness
433.30 km² overlap
Sespe Creek, California
IUCN VWild and Scenic River
29.36 km² overlap
Matilija
IUCN IbWilderness
21.35 km² overlap
Sespe Creek, California
IUCN VWild and Scenic River
6.20 km² overlap
Coldwater Canyon
IUCN VEcological Reserve
0.24 km² overlap
Dick Smith
IUCN IbWilderness
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 104 distinct species · 34 503 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 50 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 Sespe Creek : 32 espèces reliées par 140 interactions GloBI sur 4 types (connectance 11.4%, filtre Serrano α=0.2). 18 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°
12,5°C
Annual rain
547mm
Moisture idx (CMI)
-0,51
Runoff
156mm/an
PET
1 141mm
AET
454mm
Mean slope
17,0°
Water table
639cm
Forest
98%
Crops
4%
Urban
1%
Protected
66%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)