HydroBASINS lev08 watershed · #2080020440
Bassin de Ruisseau d'Escource
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 2 administrative regions : Gironde, Landes
Sub-basin area
1 136,1km²
Upstream area
1 136,1km²
Discharge
16,64m³/s
Mean elev.
45m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 1055.2 km²92.7% of basin
- 83.3 km²7.3% of basin
25 communes (GADM L5)Available for FRA, RWA
- Biscarrosse139.41 km²72% commune
- Parentis-en-Born124.30 km²100% commune
- Ychoux107.66 km²96% commune
- Escource97.83 km²95% commune
- Lüe96.68 km²100% commune
- Mimizan92.34 km²80% commune
- Sanguinet89.49 km²89% commune
- Pontenx-les-Forges80.31 km²100% commune
- La Teste-de-Buch59.53 km²34% commune
- Sainte-Eulalie-en-Born58.76 km²83% commune
- Saint-Paul-en-Born44.24 km²100% commune
- Gastes29.88 km²68% commune
- Labouheyre28.98 km²81% commune
- Solférino19.11 km²19% commune
- Lugos17.17 km²28% commune
- Bias13.81 km²64% commune
- Mézos13.16 km²15% commune
- Aureilhan11.49 km²100% commune
- Liposthey6.83 km²28% commune
- Gujan-Mestras4.24 km²8% commune
- Salles2.33 km²2% commune
- Saugnacq-et-Muret0.39 km²0% commune
- Onesse-et-Laharie0.36 km²0% commune
- Saint-Julien-en-Born0.16 km²0% commune
- Le Teich0.01 km²0% commune
8 intersecting protected areas
Zones humides de l'arrière dune des pays de Born et de Buch
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
129.22 km² overlap
Landes De Gascogne
IUCN VRegional Nature Park
68.05 km² overlap
Forêts dunaires de la Teste-de-Buch
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.40 km² overlap
Courant de sainte-eulalie
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
1.74 km² overlap
Dunes modernes du littoral landais de Mimizan Plage au Vieux-Boucau
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.14 km² overlap
Dunes modernes du littoral landais d'Arcachon à Mimizan Plage
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.04 km² overlap
Mailloueyre
IUCN IVForest Managed Biological Reserve
0.03 km² overlap
Put blanc
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 501 distinct species · 280 676 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Ruisseau d'Escource : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 110 interactions GloBI sur 6 types (connectance 15.6%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
12,9°C
Annual rain
1 144mm
Moisture idx (CMI)
0,18
Runoff
535mm/an
PET
932mm
AET
738mm
Mean slope
1,0°
Water table
58cm
Forest
85%
Crops
8%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)