Ontologia

HydroBASINS lev08 watershed · #8080215330

Bassin de Nenana 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, Matanuska-Susitna, Southeast Fairbanks

3% lakePfafstetter: 81246090

Sub-basin area

1 929,9km²

Upstream area

1 929,9km²

Discharge

19,56m³/s

Mean elev.

1 075m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Nenana River208 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Denali

    IUCN II

    National Park

    0.19 km² overlap

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

Species present

481 distinct species · 25 560 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

25 560 obs · 42 cellules
Obs. / cellule
≥ 7 001
1 962–7 000
242–1 961
12–241
< 12

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

Ecological tissue

Sample of 31 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 Nenana River : 20 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 70 interactions GloBI sur 4 types (connectance 13.3%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
70
Connectance
0.133
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°

-5,5°C

Annual rain

358mm

Moisture idx (CMI)

-0,19

Runoff

397mm/an

PET

443mm

AET

308mm

Mean slope

10,9°

Water table

290cm

Forest

0%

Crops

0%

Urban

0%

Protected

0%

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