Ontologia

HydroBASINS lev08 watershed · #7080607160

Bassin de San Joaquin 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 2 administrative regions : Fresno, Madera

4% lakePfafstetter: 77442805

Sub-basin area

701,8km²

Upstream area

2 744,2km²

Discharge

26,21m³/s

Mean elev.

1 889m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Stevenson Creek260 km²

2 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

1 545 distinct species · 12 076 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 076 obs · 18 cellules
Obs. / cellule
≥ 1 852
1 177–1 851
760–1 176
620–759
< 620

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

Ecological tissue

Sample of 46 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 San Joaquin River : 29 espèces reliées par 128 interactions GloBI sur 5 types (connectance 12.4%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
46
Interactions affichées
128
Connectance
0.124
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°

8,2°C

Annual rain

833mm

Moisture idx (CMI)

-0,19

Runoff

377mm/an

PET

1 052mm

AET

567mm

Mean slope

13,3°

Water table

440cm

Forest

99%

Crops

1%

Urban

0%

Protected

13%

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