Ontologia

HydroBASINS lev08 watershed · #7080456400

Bassin de West Fork Silvies 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 : Harney

Endorheic 11% lakePfafstetter: 77360560

Sub-basin area

621,5km²

Upstream area

621,5km²

Discharge

0,81m³/s

Mean elev.

1 347m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de West Fork Silvies River25 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

1 129 distinct species · 236 536 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

236 536 obs · 21 cellules
Obs. / cellule
≥ 121 943
27 908–121 942
4 292–27 907
678–4 291
< 678

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

Ecological tissue

Sample of 29 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 West Fork Silvies River : 19 espèces reliées par 82 interactions GloBI sur 4 types (connectance 18.9%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
82
Connectance
0.189
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°

6,7°C

Annual rain

289mm

Moisture idx (CMI)

-0,73

Runoff

71mm/an

PET

1 058mm

AET

251mm

Mean slope

2,6°

Water table

626cm

Forest

1%

Crops

8%

Urban

0%

Protected

0%

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