Ontologia

HydroBASINS lev08 watershed · #8080191670

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 3 administrative regions : Denali, Fairbanks North Star, Southeast Fairbanks

3% lakePfafstetter: 81247501

Sub-basin area

1 172,4km²

Upstream area

44 723,6km²

Discharge

547,84m³/s

Mean elev.

571m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Tanana River942 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

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

Species present

682 distinct species · 4 335 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 335 obs · 27 cellules
Obs. / cellule
≥ 2 755
414–2 754
24–413
9–23
< 9

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

Ecological tissue

Sample of 52 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 : 35 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 6 types (connectance 6.5%, filtre Serrano α=0.2). 19 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
54
Interactions affichées
93
Connectance
0.065
Patrimoniales
3
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°

-4,6°C

Annual rain

320mm

Moisture idx (CMI)

-0,36

Runoff

394mm/an

PET

501mm

AET

286mm

Mean slope

8,2°

Water table

157cm

Forest

40%

Crops

0%

Urban

0%

Protected

0%

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