Ontologia

HydroBASINS lev08 watershed · #8080153890

Bassin de Tilchuse 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

852% lakePfafstetter: 82227030

Sub-basin area

1 390,6km²

Upstream area

49 767,7km²

Discharge

194,53m³/s

Mean elev.

157m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Dease River2681 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Caribou Point

    IUCN Not Applicable

    Conservation zone in regional land use plan

    152.65 km² overlap

  • Sentinel Islands

    IUCN Not Applicable

    Conservation zone in regional land use plan

    0.64 km² overlap

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

Species present

75 distinct species · 141 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

141 obs · 6 cellules
Obs. / cellule
≥ 95
95–94
41–94
2–40
< 2

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

Ecological tissue

Sample of 14 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 Tilchuse River : 12 espèces reliées par 10 interactions GloBI sur 2 types (connectance 11.0%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
14
Interactions affichées
10
Connectance
0.110
Patrimoniales
0
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°

-7,3°C

Annual rain

236mm

Moisture idx (CMI)

-0,38

Runoff

185mm/an

PET

384mm

AET

220mm

Mean slope

0,2°

Water table

8cm

Forest

0%

Crops

0%

Urban

0%

Protected

0%

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