Ontologia

HydroBASINS lev08 watershed · #8080172340

Bassin de Birch Creek

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: 81270409

Sub-basin area

2 423,9km²

Upstream area

2 424,1km²

Discharge

6,13m³/s

Mean elev.

779m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Birch Creek268 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Steese

    IUCN V

    National Conservation Area

    1691.41 km² overlap

  • Birch Creek

    IUCN V

    Designated - Wild

    195.18 km² overlap

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

Species present

815 distinct species · 9 222 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 222 obs · 50 cellules
Obs. / cellule
≥ 3 736
265–3 735
25–264
9–24
< 9

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

Ecological tissue

Sample of 47 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 Birch Creek : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 121 interactions GloBI sur 5 types (connectance 11.2%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
47
Interactions affichées
121
Connectance
0.112
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°

-6,7°C

Annual rain

234mm

Moisture idx (CMI)

-0,54

Runoff

135mm/an

PET

507mm

AET

225mm

Mean slope

13,0°

Water table

354cm

Forest

1%

Crops

0%

Urban

0%

Protected

71%

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