HydroBASINS lev08 watershed · #7080558800
Bassin · #7080558800
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 : Colusa
Sub-basin area
36,4km²
Upstream area
1 594,3km²
Discharge
14,1m³/s
Mean elev.
17m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Logan Creek431 km²
- Bassin · #708055709076 km²
1 dept-equivalent regions (GADM L2)
- 36.4 km²100.0% of basin
2 intersecting protected areas
Delevan
IUCN IVNational Wildlife Refuge
9.73 km² overlap
Reserve Program
0.91 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
216 distinct species · 5 332 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 · #7080558800 : 15 espèces reliées par 93 interactions GloBI sur 4 types (connectance 22.9%, filtre Serrano α=0.2). 14 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°
15,9°C
Annual rain
443mm
Moisture idx (CMI)
-0,69
Runoff
235mm/an
PET
1 427mm
AET
373mm
Mean slope
0,0°
Water table
4cm
Forest
9%
Crops
84%
Urban
0%
Protected
27%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)