HydroBASINS lev08 watershed · #2080016400

Bassin du Gapeau

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: 21601074

Sub-basin area

572,3km²

Upstream area

572,4km²

Discharge

11,11m³/s

Mean elev.

308m

Administrative coverage

1 dept-equivalent regions (GADM L2)

Var
Provence-Alpes-Côte d'Azur · France
573.3 km²
100.0% of basin

29 communes (GADM L5)Available for FRA, RWA

Signes
Var
81.47 km²61% commune
Collobrières
Var
68.17 km²60% commune
Pierrefeu-du-Var
Var
53.35 km²91% commune
Cuers
Var
50.74 km²100% commune
Hyères
Var
49.56 km²36% commune
Méounes-lès-Montrieux
Var
38.84 km²95% commune
Puget-Ville
Var
37.75 km²100% commune
Pignans
Var
33.41 km²96% commune
Solliès-Toucas
Var
29.89 km²100% commune
Carnoules
Var
25.84 km²100% commune
La Crau
Var
25.46 km²68% commune
Solliès-Pont
Var
18.38 km²100% commune
Belgentier
Var
13.31 km²100% commune
Mazaugues
Var
8.53 km²16% commune
Besse-sur-Issole
Var
8.46 km²23% commune
Néoules
Var
8.42 km²34% commune
Solliès-Ville
Var
6.40 km²46% commune
Rocbaron
Var
4.07 km²20% commune
Gonfaron
Var
2.74 km²7% commune
La Londe-les-Maures
Var
2.16 km²3% commune
La Farlède
Var
2.13 km²26% commune
Sainte-Anastasie-sur-Issole
Var
1.26 km²11% commune
Flassans-sur-Issole
Var
1.07 km²2% commune
Le Revest-les-Eaux
Var
0.81 km²3% commune
Évenos
Var
0.59 km²1% commune
La Roquebrussanne
Var
0.35 km²1% commune
Les Mayons
Var
0.17 km²1% commune
Plan-d'Aups-Sainte-Baume
Var
0.03 km²0% commune
Bormes-les-Mimosas
Var
0.00 km²0% commune

16 intersecting protected areas

La Sainte-Baume
IUCN V
Regional Nature Park
168.00 km² overlap
La plaine et le massif des Maures
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
119.24 km² overlap
Mont Caume - mont Faron - forêt domaniale des Morières
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
60.50 km² overlap
Massif de la Sainte-Baume
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
11.36 km² overlap
Port-Cros [Aire D\'Adhésion]
IUCN V
National Park - Buffer zone/Area of adhesion
11.32 km² overlap
Valbelle
IUCN IV
Forest Managed Biological Reserve
1.95 km² overlap
Les Maures
IUCN Ia
Forest Integral Biological Reserve
0.56 km² overlap
Morière La Tourne
IUCN IV
Biotope Protection Order
0.33 km² overlap
Grotte de truebis
IUCN IV
Biotope Protection Order
0.12 km² overlap

7 more protected areassorted by overlap area

Lacs Temporaires De Gavoty, Redon Et Bayonny
IUCN IV
Biotope Protection Order
0.09 km² overlap
reservoir de moriere la tourne
IUCN IV
Land acquired by a regional conservatory of natural areas
0.08 km² overlap
Marais de Gavoty - lac de Bonne Cougne - lac Redon
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.06 km² overlap
Mataffe - Hauts De Hyères
IUCN IV
Biotope Protection Order
0.04 km² overlap
lac gavoty
IUCN IV
Land acquired by a regional conservatory of natural areas
0.03 km² overlap
Iles d'Hyères
IUCN Not Reported
Special Protection Area (Birds Directive)
0.00 km² overlap
Rade d'Hyères
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.00 km² overlap

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

Species present

9 771 distinct species · 977 052 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 42 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin du Gapeau : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 4 types (connectance 9.1%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.091

Patrimoniales

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°

13,4°C

Annual rain

751mm

Moisture idx (CMI)

-0,15

Runoff

527mm/an

PET

887mm

AET

595mm

Mean slope

9,4°

Water table

391cm

Forest

72%

Crops

Urban

Protected

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