Ontologia

HydroBASINS lev08 watershed · #8080184420

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

2% lakePfafstetter: 81247203

Sub-basin area

645,8km²

Upstream area

4 055,2km²

Discharge

33,67m³/s

Mean elev.

249m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Chena River353 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

1 028 distinct species · 17 802 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 802 obs · 17 cellules
Obs. / cellule
≥ 8 131
2 280–8 130
929–2 279
647–928
< 647

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

Ecological tissue

Sample of 41 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 : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 5 types (connectance 6.8%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
56
Connectance
0.068
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°

-4,0°C

Annual rain

333mm

Moisture idx (CMI)

-0,36

Runoff

302mm/an

PET

524mm

AET

294mm

Mean slope

6,7°

Water table

153cm

Forest

66%

Crops

0%

Urban

2%

Protected

2%

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