HydroBASINS lev08 watershed · #6080450410
Bassin de Riacho São Francisco
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 : Floresta, Itacuruba, Macururé, Rodelas
Sub-basin area
515,5km²
Upstream area
573 961,3km²
Discharge
2 446,75m³/s
Mean elev.
363m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Riacho das Almas486 km²
- Bassin · #6080445760378 km²
4 dept-equivalent regions (GADM L2)
- 337.0 km²65.6% of basin
- 166.4 km²32.4% of basin
- 8.5 km²1.6% of basin
- Floresta1.5 km²0.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
121 distinct species · 204 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 São Francisco : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 11 interactions GloBI sur 3 types (connectance 9.2%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
24,4°C
Annual rain
446mm
Moisture idx (CMI)
-0,74
Runoff
125mm/an
PET
1 702mm
AET
376mm
Mean slope
1,0°
Water table
286cm
Forest
2%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)