HydroBASINS lev08 watershed · #6080301540
Bassin de Rio Groaíras
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 4 administrative regions : Forquilha, Groaíras, Santa Quitéria, Sobral
Sub-basin area
514,4km²
Upstream area
2 856,6km²
Discharge
7,5m³/s
Mean elev.
160m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
4 dept-equivalent regions (GADM L2)
- 422.7 km²82.5% of basin
- 79.9 km²15.6% of basin
- 5.9 km²1.2% of basin
- 3.6 km²0.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
225 distinct species · 374 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Groaíras : 31 espèces reliées par 43 interactions GloBI sur 6 types (connectance 5.2%, 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°
26,8°C
Annual rain
786mm
Moisture idx (CMI)
-0,57
Runoff
151mm/an
PET
1 826mm
AET
663mm
Mean slope
1,9°
Water table
122cm
Forest
62%
Crops
8%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)