HydroBASINS lev08 watershed · #6080294390
Bassin de Rio Coreaú
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 7 administrative regions : Coreaú, Frecheirinha, Ibiapina, Mucambo, Sobral +2
Sub-basin area
504,5km²
Upstream area
504,6km²
Discharge
9,48m³/s
Mean elev.
249m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 140.0 km²27.9% of basin
- 122.0 km²24.3% of basin
- 120.7 km²24.0% of basin
- 61.5 km²12.2% of basin
- 52.7 km²10.5% of basin
- 4.5 km²0.9% of basin
- 0.8 km²0.2% of basin
1 intersecting protected areas
Parque Nacional De Ubajara
IUCN IIPark
27.94 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
738 distinct species · 2 322 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Coreaú : 27 espèces reliées par 33 interactions GloBI sur 4 types (connectance 6.7%, filtre Serrano α=0.2). 5 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°
26,1°C
Annual rain
1 143mm
Moisture idx (CMI)
-0,38
Runoff
382mm/an
PET
1 847mm
AET
864mm
Mean slope
4,6°
Water table
180cm
Forest
92%
Crops
18%
Urban
1%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)