Ontologia

HydroBASINS lev08 watershed · #7080511360

Bassin de Trinity River / hun’

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 : Humboldt, Trinity

Pfafstetter: 77480201

Sub-basin area

763,6km²

Upstream area

7 656,3km²

Discharge

217,77m³/s

Mean elev.

834m

Administrative coverage

Hydrographic chain

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

2 762 distinct species · 87 982 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

87 982 obs · 24 cellules
Obs. / cellule
≥ 23 826
12 340–23 825
3 109–12 339
1 469–3 108
< 1 469

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

Ecological tissue

Sample of 41 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 / hun’ : 28 espèces reliées par 103 interactions GloBI sur 5 types (connectance 12.0%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
103
Connectance
0.120
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°

10,0°C

Annual rain

1 345mm

Moisture idx (CMI)

0,17

Runoff

1 078mm/an

PET

1 112mm

AET

643mm

Mean slope

19,1°

Water table

633cm

Forest

100%

Crops

0%

Urban

0%

Protected

16%

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