Ontologia

HydroBASINS lev08 watershed · #8080096070

Bassin de Itkillik 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 : North Slope

11% lakePfafstetter: 81380147

Sub-basin area

1 016,3km²

Upstream area

2 324,9km²

Discharge

6,38m³/s

Mean elev.

627m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #8080093600104 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

1 292 distinct species · 22 589 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 589 obs · 22 cellules
Obs. / cellule
≥ 17 878
567–17 877
80–566
8–79
< 8

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

Ecological tissue

Sample of 44 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 Itkillik River : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 59 interactions GloBI sur 4 types (connectance 6.2%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
59
Connectance
0.062
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°

-11,3°C

Annual rain

220mm

Moisture idx (CMI)

-0,40

Runoff

132mm/an

PET

369mm

AET

211mm

Mean slope

5,1°

Water table

86cm

Forest

0%

Crops

0%

Urban

0%

Protected

18%

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