Ontologia

HydroBASINS lev08 watershed · #8080202480

Bassin de Delta 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

2% lakePfafstetter: 81247603

Sub-basin area

994,7km²

Upstream area

3 160,6km²

Discharge

74,69m³/s

Mean elev.

855m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Delta River89 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Delta River

    IUCN V

    Designated - Recreational

    0.22 km² overlap

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

Species present

1 013 distinct species · 17 079 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 079 obs · 25 cellules
Obs. / cellule
≥ 5 379
1 949–5 378
724–1 948
155–723
< 155

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

Ecological tissue

Sample of 48 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 Delta River : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 6 types (connectance 7.5%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
48
Interactions affichées
85
Connectance
0.075
Patrimoniales
1
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°

-4,9°C

Annual rain

276mm

Moisture idx (CMI)

-0,44

Runoff

662mm/an

PET

497mm

AET

257mm

Mean slope

10,1°

Water table

238cm

Forest

12%

Crops

0%

Urban

0%

Protected

0%

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