Ontologia

HydroBASINS lev08 watershed · #8080265410

Bassin de South 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 1 administrative regions : Fort Smith

Pfafstetter: 82242300

Sub-basin area

2 158,9km²

Upstream area

29 478,8km²

Discharge

432,1m³/s

Mean elev.

967m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de South Nahanni River83 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

414 distinct species · 973 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

973 obs · 30 cellules
Obs. / cellule
≥ 198
72–197
33–71
16–32
< 16

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

Ecological tissue

Sample of 38 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 South Nahanni River : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 101 interactions GloBI sur 5 types (connectance 12.3%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
101
Connectance
0.123
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°

-5,9°C

Annual rain

467mm

Moisture idx (CMI)

-0,04

Runoff

188mm/an

PET

490mm

AET

371mm

Mean slope

21,1°

Water table

424cm

Forest

33%

Crops

0%

Urban

0%

Protected

99%

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