Ontologia

HydroBASINS lev08 watershed · #7080418900

Bassin de Little North Santiam 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 : Clackamas, Linn, Marion

Pfafstetter: 78220064

Sub-basin area

310,4km²

Upstream area

310,4km²

Discharge

15,8m³/s

Mean elev.

822m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de North Santiam River236 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

945 distinct species · 8 906 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 906 obs · 8 cellules
Obs. / cellule
≥ 6 099
6 099–6 098
593–6 098
484–592
< 484

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 Little North Santiam River : 26 espèces reliées par 106 interactions GloBI sur 5 types (connectance 12.9%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
106
Connectance
0.129
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°

7,8°C

Annual rain

2 270mm

Moisture idx (CMI)

0,62

Runoff

1 432mm/an

PET

841mm

AET

675mm

Mean slope

18,1°

Water table

687cm

Forest

100%

Crops

2%

Urban

0%

Protected

32%

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