Ontologia

HydroBASINS lev08 watershed · #8080290250

Bassin de Allen 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 : Bethel, Dillingham

101% lakePfafstetter: 81160690

Sub-basin area

1 288,1km²

Upstream area

1 288,1km²

Discharge

31,04m³/s

Mean elev.

543m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #8080291600223 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Wood-tikchik

    IUCN V

    State Park

    602.81 km² overlap

  • Togiak

    IUCN IV

    National Wildlife Refuge

    155.12 km² overlap

  • Togiak

    IUCN Ib

    Wilderness Area

    154.92 km² overlap

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

Species present

248 distinct species · 788 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

788 obs · 12 cellules
Obs. / cellule
≥ 331
201–330
46–200
37–45
< 37

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

Ecological tissue

Sample of 33 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 Allen River : 25 espèces reliées par 67 interactions GloBI sur 3 types (connectance 11.3%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
67
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°

-2,8°C

Annual rain

571mm

Moisture idx (CMI)

0,26

Runoff

691mm/an

PET

419mm

AET

348mm

Mean slope

16,8°

Water table

403cm

Forest

0%

Crops

0%

Urban

0%

Protected

59%

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