HydroBASINS lev08 watershed · #6080288070
Bassin de Rio Parnaíba
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 15 administrative regions : Brejo, Buriti, Campo Largo do Piauí, Joaquim Pires, Joca Marques +10
Sub-basin area
2 031,2km²
Upstream area
299 906,7km²
Discharge
763,63m³/s
Mean elev.
60m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Parnaíba944 km²
- Bassin de Riacho Grande842 km²
15 dept-equivalent regions (GADM L2)
- 451.7 km²22.3% of basin
- 260.4 km²12.9% of basin
- 213.5 km²10.6% of basin
- 198.6 km²9.8% of basin
- 178.4 km²8.8% of basin
- 158.2 km²7.8% of basin
- 103.9 km²5.1% of basin
- 101.3 km²5.0% of basin
7 moreFull L2 list
- Joca Marques95.9 km² · 4.7%
- Buriti79.7 km² · 3.9%
- Porto70.7 km² · 3.5%
- Magalhães de Almeida59.0 km² · 2.9%
- Nossa Senhora dos Remédios49.6 km² · 2.5%
- Joaquim Pires0.7 km² · 0.0%
- São João do Arraial0.6 km² · 0.0%
1 intersecting protected areas
Environmental Protection Area
93.77 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
229 distinct species · 306 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 56 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 Parnaíba : 45 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 5 types (connectance 3.6%, filtre Serrano α=0.2). 11 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 640mm
Moisture idx (CMI)
-0,08
Runoff
563mm/an
PET
1 778mm
AET
1 084mm
Mean slope
2,1°
Water table
99cm
Forest
38%
Crops
9%
Urban
1%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)