Ontologia

HydroBASINS lev08 watershed · #8080181230

Bassin de North Fork Chena 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 : Fairbanks North Star, Yukon-Koyukuk

Pfafstetter: 81247206

Sub-basin area

874,3km²

Upstream area

874,5km²

Discharge

7,32m³/s

Mean elev.

678m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Chena River478 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

405 distinct species · 3 815 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 815 obs · 21 cellules
Obs. / cellule
≥ 1 606
272–1 605
33–271
21–32
< 21

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

Ecological tissue

Sample of 41 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 Chena River : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 5 types (connectance 10.3%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
93
Connectance
0.103
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°

-5,9°C

Annual rain

268mm

Moisture idx (CMI)

-0,47

Runoff

246mm/an

PET

503mm

AET

249mm

Mean slope

15,8°

Water table

452cm

Forest

18%

Crops

0%

Urban

0%

Protected

15%

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