Ontologia

HydroBASINS lev08 watershed · #8080252730

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

3% lakePfafstetter: 82242703

Sub-basin area

1 432,4km²

Upstream area

14 099km²

Discharge

251,84m³/s

Mean elev.

1 312m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de South Nahanni River999 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

403 distinct species · 1 045 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 045 obs · 24 cellules
Obs. / cellule
≥ 443
72–442
27–71
17–26
< 17

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

Ecological tissue

Sample of 34 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 : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 105 interactions GloBI sur 4 types (connectance 17.6%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
105
Connectance
0.176
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°

-7,0°C

Annual rain

527mm

Moisture idx (CMI)

0,16

Runoff

517mm/an

PET

443mm

AET

355mm

Mean slope

20,6°

Water table

453cm

Forest

17%

Crops

0%

Urban

0%

Protected

100%

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