Ontologia

HydroBASINS lev08 watershed · #7080013610

Bassin de Napa 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 3 administrative regions : Napa, Solano, Sonoma

45% lakePfafstetter: 77450020

Sub-basin area

1 106km²

Upstream area

1 106km²

Discharge

15,5m³/s

Mean elev.

200m

Administrative coverage

3 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

4 342 distinct species · 779 830 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

779 830 obs · 28 cellules
Obs. / cellule
≥ 157 728
60 619–157 727
25 323–60 618
18 465–25 322
< 18 465

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 30 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Napa River : 18 espèces reliées par 69 interactions GloBI sur 2 types (connectance 14.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
69
Connectance
0.148
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

14,5°C

Annual rain

821mm

Moisture idx (CMI)

-0,37

Runoff

457mm/an

PET

1 306mm

AET

587mm

Mean slope

7,4°

Water table

323cm

Forest

79%

Crops

19%

Urban

11%

Protected

6%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)