Ontologia

HydroBASINS lev08 watershed · #7080405810

Bassin de Willamette 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 : Marion, Yamhill

Pfafstetter: 78220053

Sub-basin area

48,5km²

Upstream area

21 551km²

Discharge

813,9m³/s

Mean elev.

75m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Willamette River280 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

595 distinct species · 11 075 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

11 075 obs · 2 cellules
Obs. / cellule
≥ 9 481
9 481–9 480
9 481–9 480
9 481–9 480
< 9 481

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

Ecological tissue

Sample of 40 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 Willamette River : 30 espèces reliées par 71 interactions GloBI sur 6 types (connectance 9.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
71
Connectance
0.091
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°

11,1°C

Annual rain

1 040mm

Moisture idx (CMI)

0,01

Runoff

1 116mm/an

PET

1 018mm

AET

598mm

Mean slope

2,3°

Water table

80cm

Forest

8%

Crops

52%

Urban

0%

Protected

0%

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