Ontologia

HydroBASINS lev08 watershed · #8080168260

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 1 administrative regions : Yukon-Koyukuk

5% lakePfafstetter: 81270407

Sub-basin area

267,6km²

Upstream area

3 538,5km²

Discharge

9,17m³/s

Mean elev.

441m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Birch Creek68 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Steese

    IUCN V

    National Conservation Area

    141.98 km² overlap

  • Birch Creek

    IUCN V

    Designated - Wild

    49.39 km² overlap

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

Species present

27 distinct species · 30 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

30 obs · 3 cellules
Obs. / cellule
≥ 26
26–25
26–25
2–25
< 2

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

Ecological tissue

Sample of 14 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 : 13 espèces reliées par 12 interactions GloBI sur 2 types (connectance 13.2%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
14
Interactions affichées
12
Connectance
0.132
Patrimoniales
0
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°

-6,1°C

Annual rain

219mm

Moisture idx (CMI)

-0,60

Runoff

101mm/an

PET

542mm

AET

213mm

Mean slope

8,5°

Water table

209cm

Forest

34%

Crops

0%

Urban

0%

Protected

67%

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