Ontologia

HydroBASINS lev08 watershed · #8080256070

Bassin de Willow Creek

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 : Matanuska-Susitna

10% lakePfafstetter: 81140302

Sub-basin area

688,6km²

Upstream area

688,6km²

Discharge

13,02m³/s

Mean elev.

581m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Susitna River916 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

649 distinct species · 9 636 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 636 obs · 23 cellules
Obs. / cellule
≥ 2 721
1 451–2 720
220–1 450
132–219
< 132

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 Willow Creek : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 4 types (connectance 10.6%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
87
Connectance
0.106
Patrimoniales
1
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°

-0,6°C

Annual rain

516mm

Moisture idx (CMI)

0,07

Runoff

577mm/an

PET

479mm

AET

363mm

Mean slope

9,5°

Water table

332cm

Forest

21%

Crops

0%

Urban

0%

Protected

4%

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