HydroBASINS lev08 watershed · #6080347800
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 8 administrative regions : Curralinhos, Matões, Nazária, Palmeirais, Parnarama +3
Sub-basin area
2 214km²
Upstream area
236 213,7km²
Discharge
736,77m³/s
Mean elev.
164m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Riacho Santana221 km²
- Bassin de Rio Parnaíba14 km²
8 dept-equivalent regions (GADM L2)
- 714.1 km²32.4% of basin
- 605.1 km²27.4% of basin
- 502.4 km²22.8% of basin
- 165.3 km²7.5% of basin
- 74.4 km²3.4% of basin
- 72.9 km²3.3% of basin
- 51.4 km²2.3% of basin
- 18.9 km²0.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
154 distinct species · 253 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 4 types (connectance 5.0%, 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°
26,9°C
Annual rain
1 407mm
Moisture idx (CMI)
-0,24
Runoff
217mm/an
PET
1 844mm
AET
1 032mm
Mean slope
3,4°
Water table
185cm
Forest
39%
Crops
9%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)