HydroBASINS lev08 watershed · #6080762870
Bassin de Rio Ivaí
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 11 administrative regions : Douradina, Icaraíma, Ivaté, Loanda, Maria Helena +6
Sub-basin area
2 227,5km²
Upstream area
36 699,6km²
Discharge
726,4m³/s
Mean elev.
319m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Ivaí1213 km²
- Bassin de Rio das Antas1181 km²
11 dept-equivalent regions (GADM L2)
- 434.4 km²19.5% of basin
- 410.9 km²18.5% of basin
- 407.2 km²18.3% of basin
- 274.2 km²12.3% of basin
- 248.9 km²11.2% of basin
- 212.7 km²9.6% of basin
- 136.6 km²6.1% of basin
- 75.8 km²3.4% of basin
3 moreFull L2 list
- Maria Helena20.4 km² · 0.9%
- Tapira0.8 km² · 0.0%
- Porto Rico0.3 km² · 0.0%
3 intersecting protected areas
Environmental Protection Area
485.92 km² overlap
Park
1.49 km² overlap
Ilha Grande National Park
IUCN IIWetland of International Importance (Ramsar Site)
1.35 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
446 distinct species · 1 071 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Ivaí : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 50 interactions GloBI sur 5 types (connectance 5.8%, filtre Serrano α=0.2). 8 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°
21,8°C
Annual rain
1 345mm
Moisture idx (CMI)
-0,19
Runoff
283mm/an
PET
1 656mm
AET
1 138mm
Mean slope
2,1°
Water table
201cm
Forest
4%
Crops
18%
Urban
1%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)