HydroBASINS lev08 watershed · #6080011890
Bassin de Rio Vaza-Barris
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 9 administrative regions : Areia Branca, Campo do Brito, Itabaiana, Itaporanga d'Ajuda, Lagarto +4
Sub-basin area
1 142,4km²
Upstream area
16 214,2km²
Discharge
33,26m³/s
Mean elev.
127m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Rio Salgado544 km²
- Bassin de Rio Vaza-Barris397 km²
9 dept-equivalent regions (GADM L2)
- 329.0 km²28.9% of basin
- 214.9 km²18.9% of basin
- 182.7 km²16.1% of basin
- 157.3 km²13.8% of basin
- 126.7 km²11.1% of basin
- 92.5 km²8.1% of basin
- 21.9 km²1.9% of basin
- 12.7 km²1.1% of basin
1 moreFull L2 list
- Simão Dias0.0 km² · 0.0%
1 intersecting protected areas
Park
19.47 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 920 distinct species · 8 899 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Rio Vaza-Barris : 29 espèces reliées par 65 interactions GloBI sur 3 types (connectance 8.8%, filtre Serrano α=0.2). 10 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°
24,5°C
Annual rain
1 247mm
Moisture idx (CMI)
-0,12
Runoff
448mm/an
PET
1 423mm
AET
938mm
Mean slope
3,6°
Water table
207cm
Forest
10%
Crops
14%
Urban
4%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)