HydroBASINS lev08 watershed · #7080603600
Bassin de Merced 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 : Merced
Sub-basin area
194,1km²
Upstream area
3 423,7km²
Discharge
40,44m³/s
Mean elev.
38m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Merced River694 km²
- Bassin de Merced River269 km²
1 dept-equivalent regions (GADM L2)
- 194.2 km²100.0% of basin
5 intersecting protected areas
Magneson Farm
IUCN Not AssignedConservation Easement
1.52 km² overlap
Watershed Protection
0.70 km² overlap
Magneson Dairy
IUCN Not AssignedConservation Easement
0.36 km² overlap
Du Granrut Farm
IUCN Not AssignedConservation Easement
0.16 km² overlap
Flora/Graser Farm
IUCN Not AssignedConservation Easement
0.12 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
401 distinct species · 4 235 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Merced River : 30 espèces reliées par 124 interactions GloBI sur 4 types (connectance 15.1%, 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°
16,5°C
Annual rain
289mm
Moisture idx (CMI)
-0,80
Runoff
104mm/an
PET
1 456mm
AET
245mm
Mean slope
0,3°
Water table
40cm
Forest
23%
Crops
79%
Urban
7%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)