Ontologia

HydroBASINS lev08 watershed · #8080221360

Bassin de Tanana 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 1 administrative regions : Southeast Fairbanks

32% lakePfafstetter: 81247990

Sub-basin area

876,5km²

Upstream area

14 902,8km²

Discharge

142,09m³/s

Mean elev.

595m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Tanana River617 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Tetlin

    IUCN IV

    National Wildlife Refuge

    114.44 km² overlap

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

Species present

500 distinct species · 6 243 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 243 obs · 23 cellules
Obs. / cellule
≥ 2 668
229–2 667
101–228
49–100
< 49

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

Ecological tissue

Sample of 32 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 Tanana River : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 69 interactions GloBI sur 3 types (connectance 13.1%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
69
Connectance
0.131
Patrimoniales
2
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°

-5,6°C

Annual rain

248mm

Moisture idx (CMI)

-0,55

Runoff

220mm/an

PET

557mm

AET

237mm

Mean slope

6,0°

Water table

94cm

Forest

52%

Crops

0%

Urban

0%

Protected

10%

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