HydroBASINS lev08 watershed · #6080280770
Bassin de Rio Longá
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 11 administrative regions : Batalha, Buriti dos Lopes, Caraúbas do Piauí, Caxingó, Cocal +6
Sub-basin area
2 400,3km²
Upstream area
24 192,5km²
Discharge
217,78m³/s
Mean elev.
60m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Longá229 km²
- Bassin de Rio Piracuruca108 km²
11 dept-equivalent regions (GADM L2)
- 480.7 km²20.1% of basin
- 470.6 km²19.7% of basin
- 425.2 km²17.8% of basin
- 260.3 km²10.9% of basin
- 250.9 km²10.5% of basin
- 243.9 km²10.2% of basin
- 75.9 km²3.2% of basin
- 56.9 km²2.4% of basin
3 moreFull L2 list
- São José do Divino54.9 km² · 2.3%
- Cocal50.9 km² · 2.1%
- Morro do Chapéu do Piauí19.3 km² · 0.8%
1 intersecting protected areas
Environmental Protection Area
1201.69 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
255 distinct species · 379 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Longá : 24 espèces reliées par 44 interactions GloBI sur 5 types (connectance 7.8%, filtre Serrano α=0.2). 10 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°
27,1°C
Annual rain
1 404mm
Moisture idx (CMI)
-0,19
Runoff
372mm/an
PET
1 728mm
AET
985mm
Mean slope
1,7°
Water table
101cm
Forest
40%
Crops
7%
Urban
0%
Protected
50%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)