HydroBASINS lev08 watershed · #6080535260
Bassin de Riacho do Alegre
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 4 administrative regions : Barra, Brejolândia, Muquém do São Francisco, Wanderley
Sub-basin area
1 935,2km²
Upstream area
1 935,3km²
Discharge
12,09m³/s
Mean elev.
537m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1801.6 km²93.5% of basin
- 72.3 km²3.8% of basin
- 51.7 km²2.7% of basin
- 2.1 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
173 distinct species · 354 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Riacho do Alegre : 18 espèces reliées par 16 interactions GloBI sur 2 types (connectance 8.4%, filtre Serrano α=0.2). 2 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°
24,7°C
Annual rain
884mm
Moisture idx (CMI)
-0,54
Runoff
199mm/an
PET
1 924mm
AET
747mm
Mean slope
3,4°
Water table
212cm
Forest
33%
Crops
3%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)