Ontologia

HydroBASINS lev08 watershed · #7080375630

Bassin de South Fork Toutle 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 : Cowlitz, Lewis, Skamania

15% lakePfafstetter: 78210024

Sub-basin area

1 313,5km²

Upstream area

1 313,5km²

Discharge

59,56m³/s

Mean elev.

671m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Cowlitz River306 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

1 451 distinct species · 70 180 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

70 180 obs · 39 cellules
Obs. / cellule
≥ 21 971
5 713–21 970
1 095–5 712
160–1 094
< 160

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 South Fork Toutle River : 27 espèces reliées par 88 interactions GloBI sur 4 types (connectance 11.3%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
88
Connectance
0.113
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°

7,9°C

Annual rain

2 269mm

Moisture idx (CMI)

0,61

Runoff

1 430mm/an

PET

829mm

AET

662mm

Mean slope

12,3°

Water table

444cm

Forest

94%

Crops

1%

Urban

0%

Protected

20%

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