Ontologia

HydroBASINS lev08 watershed · #7080521400

Bassin de 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 : Shasta, Trinity

5% lakePfafstetter: 77480207

Sub-basin area

1 201,2km²

Upstream area

2 944,9km²

Discharge

71,69m³/s

Mean elev.

1 038m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Trinity River474 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

7 intersecting protected areas

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

Species present

2 098 distinct species · 108 705 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

108 705 obs · 32 cellules
Obs. / cellule
≥ 26 217
11 075–26 216
2 195–11 074
918–2 194
< 918

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

Ecological tissue

Sample of 32 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 Trinity River : 18 espèces reliées par 88 interactions GloBI sur 4 types (connectance 16.7%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
88
Connectance
0.167
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°

10,2°C

Annual rain

1 056mm

Moisture idx (CMI)

-0,13

Runoff

792mm/an

PET

1 220mm

AET

612mm

Mean slope

18,1°

Water table

587cm

Forest

99%

Crops

0%

Urban

0%

Protected

18%

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