HydroBASINS lev08 watershed · #6080345520
Bassin de Riacho dos Canudos
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 6 administrative regions : Alto Longá, Castelo do Piauí, Juazeiro do Piauí, Milton Brandão, Novo Santo Antônio +1
Sub-basin area
1 414,9km²
Upstream area
1 414,9km²
Discharge
6,86m³/s
Mean elev.
232m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 712.9 km²50.6% of basin
- 334.9 km²23.8% of basin
- 176.0 km²12.5% of basin
- 107.4 km²7.6% of basin
- 74.7 km²5.3% of basin
- 2.9 km²0.2% of basin
1 intersecting protected areas
Environmental Protection Area
240.86 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
165 distinct species · 254 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 dos Canudos : 19 espèces reliées par 14 interactions GloBI sur 4 types (connectance 7.4%, 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°
26,0°C
Annual rain
1 181mm
Moisture idx (CMI)
-0,36
Runoff
156mm/an
PET
1 846mm
AET
904mm
Mean slope
1,3°
Water table
114cm
Forest
10%
Crops
2%
Urban
0%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)