HydroBASINS lev08 watershed · #6080381040
Bassin de Rio Picuí
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 19 administrative regions : Acari, Baraúna, Campo Redondo, Carnaúba dos Dantas, Cerro Corá +14
Sub-basin area
2 644,9km²
Upstream area
2 645km²
Discharge
5,26m³/s
Mean elev.
455m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
19 dept-equivalent regions (GADM L2)
- 831.1 km²31.6% of basin
- 619.5 km²23.5% of basin
- 406.4 km²15.4% of basin
- 238.7 km²9.1% of basin
- 210.9 km²8.0% of basin
- 104.5 km²4.0% of basin
- 103.2 km²3.9% of basin
- 35.7 km²1.4% of basin
11 moreFull L2 list
- São José do Seridó30.3 km² · 1.2%
- Jardim do Seridó21.0 km² · 0.8%
- Baraúna9.8 km² · 0.4%
- Campo Redondo8.7 km² · 0.3%
- Pedra Lavrada6.0 km² · 0.2%
- Coronel Ezequiel2.5 km² · 0.1%
- Jaçanã1.8 km² · 0.1%
- Parelhas1.8 km² · 0.1%
- Cruzeta0.8 km² · 0.0%
- São Vicente0.7 km² · 0.0%
- Nova Floresta0.1 km² · 0.0%
1 intersecting protected areas
Natural Heritage Private Reserve
1.52 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
955 distinct species · 16 161 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Picuí : 32 espèces reliées par 39 interactions GloBI sur 5 types (connectance 5.5%, filtre Serrano α=0.2). 6 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
521mm
Moisture idx (CMI)
-0,68
Runoff
69mm/an
PET
1 625mm
AET
440mm
Mean slope
4,2°
Water table
383cm
Forest
3%
Crops
15%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)