Ontologia

HydroBASINS lev08 watershed · #2080579040

Bassin de la Bresque

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 : Var

Pfafstetter: 21601066

Sub-basin area

268,1km²

Upstream area

268,2km²

Discharge

3,81m³/s

Mean elev.

460m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de l'Argens283 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

18 communes (GADM L5)

3 intersecting protected areas

  • Verdon

    IUCN V

    Regional Nature Park

    112.22 km² overlap

  • Sources et tufs du Haut Var

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    32.69 km² overlap

  • Val d'Argens

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    9.94 km² overlap

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

Species present

5 752 distinct species · 159 142 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

159 142 obs · 16 cellules
Obs. / cellule
≥ 22 956
22 025–22 955
12 028–22 024
8 657–12 027
< 8 657

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

Ecological tissue

Sample of 29 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 la Bresque : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 103 interactions GloBI sur 5 types (connectance 20.8%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
103
Connectance
0.208
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°

12,1°C

Annual rain

779mm

Moisture idx (CMI)

-0,12

Runoff

449mm/an

PET

892mm

AET

616mm

Mean slope

5,8°

Water table

294cm

Forest

69%

Crops

3%

Urban

0%

Protected

42%

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