Ontologia

HydroBASINS lev08 watershed · #8080154120

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

166% lakePfafstetter: 82227054

Sub-basin area

123,7km²

Upstream area

123,7km²

Discharge

0,28m³/s

Mean elev.

234m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Tilchuse River1214 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Sentinel Islands

    IUCN Not Applicable

    Conservation zone in regional land use plan

    0.03 km² overlap

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

Species present

175 distinct species · 314 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

314 obs · 2 cellules
Obs. / cellule
≥ 206
206–205
206–205
206–205
< 206

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

Ecological tissue

Sample of 37 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 : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 82 interactions GloBI sur 5 types (connectance 11.7%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
82
Connectance
0.117
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°

-7,2°C

Annual rain

247mm

Moisture idx (CMI)

-0,36

Runoff

169mm/an

PET

387mm

AET

227mm

Mean slope

1,8°

Water table

33cm

Forest

8%

Crops

0%

Urban

0%

Protected

0%

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