Ontologia

HydroBASINS lev08 watershed · #7080014630

Bassin de Alsea 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 3 administrative regions : Benton, Lane, Lincoln

Pfafstetter: 78100704

Sub-basin area

1 167,3km²

Upstream area

1 167,5km²

Discharge

63,81m³/s

Mean elev.

321m

Administrative coverage

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

1 905 distinct species · 76 246 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

76 246 obs · 36 cellules
Obs. / cellule
≥ 20 850
5 283–20 849
1 496–5 282
987–1 495
< 987

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 Alsea River : 30 espèces reliées par 98 interactions GloBI sur 4 types (connectance 12.0%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
98
Connectance
0.119
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

2 109mm

Moisture idx (CMI)

0,56

Runoff

1 539mm/an

PET

905mm

AET

679mm

Mean slope

15,2°

Water table

449cm

Forest

99%

Crops

0%

Urban

0%

Protected

2%

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