Ontologia

HydroBASINS lev08 watershed · #7080518900

Bassin de South Fork Trinity 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 4 administrative regions : Humboldt, Shasta, Tehama, Trinity

Pfafstetter: 77480202

Sub-basin area

2 394km²

Upstream area

2 394,3km²

Discharge

72,39m³/s

Mean elev.

1 087m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Trinity River / hun’764 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

2 563 distinct species · 65 438 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

65 438 obs · 66 cellules
Obs. / cellule
≥ 10 510
1 731–10 509
757–1 730
573–756
< 573

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

Ecological tissue

Sample of 38 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 South Fork Trinity River : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 4 types (connectance 9.6%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
75
Connectance
0.096
Patrimoniales
1
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°

9,5°C

Annual rain

1 231mm

Moisture idx (CMI)

0,06

Runoff

927mm/an

PET

1 152mm

AET

622mm

Mean slope

15,3°

Water table

488cm

Forest

100%

Crops

0%

Urban

0%

Protected

4%

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