Ontologia

HydroBASINS lev08 watershed · #7080542660

Bassin de North Fork 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 2 administrative regions : Mendocino, Trinity

Pfafstetter: 77460060

Sub-basin area

725,8km²

Upstream area

725,8km²

Discharge

22,81m³/s

Mean elev.

918m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Eel River925 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

732 distinct species · 5 371 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 371 obs · 21 cellules
Obs. / cellule
≥ 2 697
444–2 696
158–443
69–157
< 69

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 North Fork Eel River : 18 espèces reliées par 131 interactions GloBI sur 4 types (connectance 18.6%, filtre Serrano α=0.2). 20 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
131
Connectance
0.186
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°

10,5°C

Annual rain

1 301mm

Moisture idx (CMI)

0,06

Runoff

958mm/an

PET

1 216mm

AET

635mm

Mean slope

14,3°

Water table

497cm

Forest

97%

Crops

1%

Urban

0%

Protected

17%

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