Ontologia

HydroBASINS lev08 watershed · #8080228910

Bassin de Gulkana 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 : Southeast Fairbanks, Valdez-Cordova

65% lakePfafstetter: 81120466

Sub-basin area

535,8km²

Upstream area

535,8km²

Discharge

9,71m³/s

Mean elev.

1 074m

Administrative coverage

Hydrographic chain

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

645 distinct species · 10 653 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 653 obs · 15 cellules
Obs. / cellule
≥ 2 517
2 006–2 516
861–2 005
339–860
< 339

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 Gulkana River : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 5 types (connectance 11.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
79
Connectance
0.112
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°

-5,8°C

Annual rain

250mm

Moisture idx (CMI)

-0,50

Runoff

567mm/an

PET

503mm

AET

239mm

Mean slope

8,1°

Water table

169cm

Forest

2%

Crops

0%

Urban

0%

Protected

3%

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