HydroBASINS lev08 watershed · #1080764240
Bassin de Sandana
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 : Houet, Tuy
Sub-basin area
476,2km²
Upstream area
476,2km²
Discharge
1,12m³/s
Mean elev.
335m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 473.1 km²99.7% of basin
- 1.2 km²0.3% of basin
1 intersecting protected areas
Maro
IUCN Not ReportedClassified Forest
23.78 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
51 distinct species · 84 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 Sandana : 6 espèces + 1 bulle famille, 6 interactions GloBI documentées sur 1 type (connectance 28.6%, filtre Serrano α=0.2). Les 1 bulle regroupe des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
27,5°C
Annual rain
981mm
Moisture idx (CMI)
-0,51
Runoff
69mm/an
PET
1 984mm
AET
828mm
Mean slope
0,9°
Water table
133cm
Forest
0%
Crops
7%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)