HydroBASINS lev08 watershed · #6080722980
Bassin de Ribeirão da Onça
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 : Ariranha, Catanduva, Catiguá, Cândido Rodrigues, Embaúba +10
Sub-basin area
971,2km²
Upstream area
971,5km²
Discharge
12,92m³/s
Mean elev.
554m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
15 dept-equivalent regions (GADM L2)
- Monte AltoSão Paulo · Brazil151.4 km²15.6% of basin
- 118.8 km²12.3% of basin
- 117.8 km²12.2% of basin
- Fernando PrestesSão Paulo · Brazil92.8 km²9.6% of basin
- Palmares PaulistaSão Paulo · Brazil82.1 km²8.5% of basin
- 71.1 km²7.3% of basin
- ParaísoSão Paulo · Brazil69.3 km²7.1% of basin
- 66.9 km²6.9% of basin
7 moreFull L2 list
- Vista Alegre do Alto58.1 km² · 6.0%
- Tabapuã48.5 km² · 5.0%
- Embaúba45.8 km² · 4.7%
- Santa Adélia20.3 km² · 2.1%
- Cândido Rodrigues18.0 km² · 1.9%
- Pindorama7.6 km² · 0.8%
- Catiguá0.1 km² · 0.0%
1 intersecting protected areas
Natural Heritage Private Reserve
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
380 distinct species · 4 091 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Ribeirão da Onça : 23 espèces reliées par 23 interactions GloBI sur 4 types (connectance 7.1%, filtre Serrano α=0.2). 3 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°
22,3°C
Annual rain
1 304mm
Moisture idx (CMI)
-0,20
Runoff
407mm/an
PET
1 633mm
AET
1 083mm
Mean slope
3,1°
Water table
197cm
Forest
0%
Crops
74%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)