Ontologia

HydroBASINS lev08 watershed · #8080237870

Bassin de Little Nahanni 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 2 administrative regions : Fort Smith, Yukon

2% lakePfafstetter: 82242904

Sub-basin area

1 583km²

Upstream area

1 583,2km²

Discharge

26,25m³/s

Mean elev.

1 464m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de South Nahanni River588 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

215 distinct species · 585 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

585 obs · 24 cellules
Obs. / cellule
≥ 136
82–135
12–81
11–11
< 11

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

Ecological tissue

Sample of 36 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 Little Nahanni River : 23 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 88 interactions GloBI sur 6 types (connectance 11.9%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
88
Connectance
0.119
Patrimoniales
4
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°

-7,2°C

Annual rain

555mm

Moisture idx (CMI)

0,23

Runoff

517mm/an

PET

427mm

AET

351mm

Mean slope

18,0°

Water table

413cm

Forest

0%

Crops

0%

Urban

0%

Protected

47%

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