HydroBASINS lev08 watershed · #7080014000
Bassin de Bear 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 : Humboldt
Sub-basin area
432,9km²
Upstream area
432,9km²
Discharge
3,42m³/s
Mean elev.
328m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Humboldt424.7 km²98.0% of basin
9 intersecting protected areas
Eel River Estuary
IUCN VPreserve
4.08 km² overlap
Eel River
IUCN VWildlife Area
1.86 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Humboldt, CA
IUCN VConservation Easement
1.78 km² overlap
California Coastal
IUCN VNational Monument
1.63 km² overlap
Marine Protected Area
0.48 km² overlap
Watershed Protection
0.42 km² overlap
Reserve Program
0.42 km² overlap
Sounding Seas Dunes
IUCN VReserve
0.36 km² overlap
Marine Protected Area
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 963 distinct species · 100 842 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Bear River : 23 espèces reliées par 77 interactions GloBI sur 2 types (connectance 12.9%, filtre Serrano α=0.2). 12 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°
10,5°C
Annual rain
1 747mm
Moisture idx (CMI)
0,52
Runoff
1 217mm/an
PET
839mm
AET
610mm
Mean slope
13,4°
Water table
512cm
Forest
78%
Crops
9%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)