HydroBASINS lev08 watershed · #2080020420
Bassin de Ruisseau de Lapendille et de Paschicot
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 : Landes
Sub-basin area
500,5km²
Upstream area
500,5km²
Discharge
9,18m³/s
Mean elev.
57m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 501.4 km²100.0% of basin
17 communes (GADM L5)Available for FRA, RWA
- Onesse-et-Laharie132.17 km²100% commune
- Mézos75.52 km²85% commune
- Lit-et-Mixe68.44 km²62% commune
- Saint-Julien-en-Born60.10 km²83% commune
- Lesperon57.96 km²55% commune
- Lévignacq42.28 km²100% commune
- Sindères13.98 km²69% commune
- Solférino12.95 km²13% commune
- Uza12.91 km²100% commune
- Linxe8.39 km²10% commune
- Bias7.14 km²33% commune
- Escource5.45 km²5% commune
- Morcenx3.39 km²5% commune
- Vielle-Saint-Girons0.40 km²1% commune
- Rion-des-Landes0.23 km²0% commune
- Garrosse0.05 km²0% commune
- Mimizan0.04 km²0% commune
3 intersecting protected areas
Zones humides de l'ancien étang de Lit-et-Mixe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
22.50 km² overlap
Landes De Gascogne
IUCN VRegional Nature Park
12.33 km² overlap
Dunes modernes du littoral landais de Mimizan Plage au Vieux-Boucau
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.49 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 854 distinct species · 88 455 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 de Lapendille et de Paschicot : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 121 interactions GloBI sur 6 types (connectance 19.2%, filtre Serrano α=0.2). 15 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°
13,0°C
Annual rain
1 203mm
Moisture idx (CMI)
0,23
Runoff
638mm/an
PET
927mm
AET
755mm
Mean slope
1,2°
Water table
77cm
Forest
97%
Crops
3%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)