Ontologia

HydroBASINS lev08 watershed · #2080104520

Bassin · #2080104520

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 : Lozère

EndorheicPfafstetter: 23214900

Sub-basin area

36,8km²

Upstream area

36,8km²

Discharge

0,55m³/s

Mean elev.

1 002m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Tarn1039 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

3 communes (GADM L5)

4 intersecting protected areas

  • Cévennes

    IUCN II

    National Park - Core Area

    22.03 km² overlap

  • Les Cévennes

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    21.98 km² overlap

  • Gorges du Tarn et de la Jonte

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    14.82 km² overlap

  • Causse Méjean

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.47 km² overlap

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

Species present

1 116 distinct species · 17 352 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 352 obs · 1 cellules
Obs. / cellule
≥ 17 352
17 352–17 351
17 352–17 351
17 352–17 351
< 17 352

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

Ecological tissue

Sample of 28 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 · #2080104520 : 22 espèces + 6 bulles famille, 59 interactions GloBI documentées sur 4 types (connectance 15.6%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
28
Interactions affichées
59
Connectance
0.156
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°

8,8°C

Annual rain

817mm

Moisture idx (CMI)

-0,03

Runoff

601mm/an

PET

843mm

AET

646mm

Mean slope

4,9°

Water table

216cm

Forest

1%

Crops

56%

Urban

0%

Protected

100%

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