Ontologia

HydroBASINS lev08 watershed · #8080108300

Bassin de East Fork Chandalar 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 : North Slope, Yukon-Koyukuk

6% lakePfafstetter: 81250890

Sub-basin area

2 489km²

Upstream area

2 489,3km²

Discharge

5,46m³/s

Mean elev.

1 234m

Administrative coverage

Hydrographic chain

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

134 distinct species · 325 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

325 obs · 23 cellules
Obs. / cellule
≥ 72
42–71
19–41
5–18
< 5

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

Ecological tissue

Sample of 37 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 East Fork Chandalar River : 25 espèces dont 5 patrimoniales (LR IUCN CR/EN/VU) reliées par 92 interactions GloBI sur 5 types (connectance 13.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
92
Connectance
0.138
Patrimoniales
5
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°

-13,9°C

Annual rain

153mm

Moisture idx (CMI)

-0,44

Runoff

77mm/an

PET

278mm

AET

163mm

Mean slope

19,4°

Water table

504cm

Forest

0%

Crops

0%

Urban

0%

Protected

100%

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