Ontologia

HydroBASINS lev08 watershed · #7080527090

Bassin de Eel 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 1 administrative regions : Humboldt

Pfafstetter: 77460030

Sub-basin area

511,8km²

Upstream area

8 101,7km²

Discharge

270,49m³/s

Mean elev.

430m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Eel River158 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

1 327 distinct species · 8 291 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 291 obs · 15 cellules
Obs. / cellule
≥ 3 230
1 597–3 229
676–1 596
125–675
< 125

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

Ecological tissue

Sample of 44 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 Eel River : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 104 interactions GloBI sur 4 types (connectance 10.5%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
104
Connectance
0.105
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°

11,2°C

Annual rain

1 614mm

Moisture idx (CMI)

0,36

Runoff

1 199mm/an

PET

1 027mm

AET

648mm

Mean slope

14,0°

Water table

482cm

Forest

95%

Crops

3%

Urban

0%

Protected

3%

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