Rivière· 37 segments
Napa River
Crosses 3 administrative regions : Napa, Solano, Sonoma
Total length
82km
Max discharge
15,2m³/s
Max Strahler
4
Segments matched
37
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
10 intersecting protected areas
Marine Protected Area
San Pablo Bay
IUCN IVNational Wildlife Refuge
Napa-Sonoma Marshes
IUCN VWildlife Area
Conservation
IUCN Not AssignedEasement
Unknown or Unnamed
IUCN Not AssignedConservation Easement
Marine Protected Area
Fagan Marsh
IUCN VEcological Reserve
Ghisleta - South
IUCN VWetlands
Georges III - 4
IUCN Not AssignedConservation Easement
1 more protected areassorted by area
Oxbow
IUCN VPreserve
1 page = 1 named river (aggregation of 37 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
810 distinct species · 20 979 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Napa River : 28 espèces reliées par 105 interactions GloBI sur 4 types (connectance 12.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
82km
Max discharge
15,2m³/s
Max Strahler
4
Segments matched
37
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.