Ontologia

HydroBASINS lev08 watershed · #7080521340

Bassin de North 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 2 administrative regions : Siskiyou, Trinity

Pfafstetter: 77480206

Sub-basin area

389,7km²

Upstream area

389,9km²

Discharge

10,71m³/s

Mean elev.

1 341m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Trinity River474 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

839 distinct species · 4 901 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 901 obs · 11 cellules
Obs. / cellule
≥ 3 172
349–3 171
261–348
191–260
< 191

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

Ecological tissue

Sample of 48 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 North Fork Trinity River : 29 espèces reliées par 113 interactions GloBI sur 5 types (connectance 9.6%, filtre Serrano α=0.2). 20 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
49
Interactions affichées
113
Connectance
0.096
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°

8,1°C

Annual rain

1 085mm

Moisture idx (CMI)

-0,01

Runoff

860mm/an

PET

1 091mm

AET

598mm

Mean slope

23,6°

Water table

772cm

Forest

100%

Crops

0%

Urban

0%

Protected

89%

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