Ontologia

HydroBASINS lev08 watershed · #8080197900

Bassin de North Fork Fortymile 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

Pfafstetter: 81270641

Sub-basin area

712,8km²

Upstream area

5 383km²

Discharge

24,26m³/s

Mean elev.

876m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Fortymile River205 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

59 distinct species · 95 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

95 obs · 6 cellules
Obs. / cellule
≥ 59
59–58
32–58
1–31
< 1

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

Ecological tissue

Sample of 25 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 North Fork Fortymile River : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 11.3%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
34
Connectance
0.113
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°

-7,3°C

Annual rain

217mm

Moisture idx (CMI)

-0,59

Runoff

158mm/an

PET

526mm

AET

215mm

Mean slope

15,9°

Water table

440cm

Forest

25%

Crops

0%

Urban

0%

Protected

27%

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