HydroBASINS lev08 watershed · #6080429880
Bassin de Riacho da Volta
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 10 administrative regions : Araripe, Araripina, Bodocó, Exu, Granito +5
Sub-basin area
3 675,3km²
Upstream area
3 675,3km²
Discharge
17,03m³/s
Mean elev.
616m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
10 dept-equivalent regions (GADM L2)
- 1546.2 km²42.2% of basin
- 684.8 km²18.7% of basin
- 544.7 km²14.9% of basin
- 373.0 km²10.2% of basin
- 183.8 km²5.0% of basin
- 161.2 km²4.4% of basin
- 102.1 km²2.8% of basin
- 34.2 km²0.9% of basin
1 intersecting protected areas
Environmental Protection Area
1452.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
478 distinct species · 1 134 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 da Volta : 38 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 45 interactions GloBI sur 5 types (connectance 4.5%, filtre Serrano α=0.2). 7 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°
23,6°C
Annual rain
711mm
Moisture idx (CMI)
-0,58
Runoff
141mm/an
PET
1 686mm
AET
601mm
Mean slope
1,7°
Water table
211cm
Forest
21%
Crops
8%
Urban
0%
Protected
39%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)