Ontologia

HydroBASINS lev08 watershed · #8080185330

Bassin de Chena 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 : Fairbanks North Star

5% lakePfafstetter: 81247201

Sub-basin area

353,3km²

Upstream area

5 504,8km²

Discharge

43,11m³/s

Mean elev.

229m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Tanana River18 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

3 323 distinct species · 215 287 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

215 287 obs · 12 cellules
Obs. / cellule
≥ 87 270
59 101–87 269
8 008–59 100
6 110–8 007
< 6 110

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

Ecological tissue

Sample of 40 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 Chena River : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 5 types (connectance 9.0%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
74
Connectance
0.090
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°

-3,4°C

Annual rain

315mm

Moisture idx (CMI)

-0,42

Runoff

272mm/an

PET

543mm

AET

281mm

Mean slope

6,1°

Water table

142cm

Forest

58%

Crops

0%

Urban

12%

Protected

0%

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