Ontologia

HydroBASINS lev08 watershed · #2080553820

Bassin du Bès

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 3 administrative regions : Aveyron, Cantal, Lozère

4% lakePfafstetter: 23214264

Sub-basin area

431,2km²

Upstream area

431,2km²

Discharge

6,18m³/s

Mean elev.

1 149m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de la Truyère981 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

38 communes (GADM L5)

9 intersecting protected areas

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

Species present

3 337 distinct species · 228 000 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

228 000 obs · 23 cellules
Obs. / cellule
≥ 32 056
15 348–32 055
13 050–15 347
9 181–13 049
< 9 181

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

Ecological tissue

Sample of 33 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 du Bès : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 5 types (connectance 18.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
99
Connectance
0.188
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°

7,5°C

Annual rain

855mm

Moisture idx (CMI)

0,07

Runoff

476mm/an

PET

796mm

AET

651mm

Mean slope

5,4°

Water table

417cm

Forest

26%

Crops

18%

Urban

0%

Protected

0%

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