Ontologia

HydroBASINS lev08 watershed · #8080131110

Bassin de Middle Fork Koyukuk 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 : Yukon-Koyukuk

2% lakePfafstetter: 81220950

Sub-basin area

1 428,4km²

Upstream area

4 273,4km²

Discharge

30,89m³/s

Mean elev.

659m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Koyukuk River330 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

811 distinct species · 11 119 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

11 119 obs · 32 cellules
Obs. / cellule
≥ 4 018
812–4 017
88–811
60–87
< 60

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

Ecological tissue

Sample of 36 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 Middle Fork Koyukuk River : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 104 interactions GloBI sur 5 types (connectance 14.8%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
104
Connectance
0.148
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°

-8,6°C

Annual rain

293mm

Moisture idx (CMI)

-0,33

Runoff

320mm/an

PET

441mm

AET

262mm

Mean slope

14,8°

Water table

331cm

Forest

6%

Crops

0%

Urban

0%

Protected

70%

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