HydroBASINS lev08 watershed · #6080798500
Bassin de Rio da Várzea
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 13 administrative regions : Agudos do Sul, Antônio Olinto, Araucária, Campo do Tenente, Contenda +8
Sub-basin area
2 347km²
Upstream area
2 347,5km²
Discharge
49,42m³/s
Mean elev.
872m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
13 dept-equivalent regions (GADM L2)
- 655.4 km²28.0% of basin
- 446.0 km²19.0% of basin
- 300.2 km²12.8% of basin
- 281.3 km²12.0% of basin
- 232.3 km²9.9% of basin
- 156.2 km²6.7% of basin
- 78.4 km²3.3% of basin
- 75.4 km²3.2% of basin
5 moreFull L2 list
- Rio Negro66.2 km² · 2.8%
- Piên44.7 km² · 1.9%
- Araucária4.4 km² · 0.2%
- Antônio Olinto2.0 km² · 0.1%
- Mafra0.0 km² · 0.0%
4 intersecting protected areas
Environmental Protection Area
149.33 km² overlap
Environmental Protection Area
4.85 km² overlap
Parque Estadual do Monge
IUCN IIPark
3.34 km² overlap
Natural Heritage Private Reserve
1.31 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 597 distinct species · 7 617 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 da Várzea : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 6 types (connectance 6.8%, filtre Serrano α=0.2). 7 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°
16,6°C
Annual rain
1 338mm
Moisture idx (CMI)
0,02
Runoff
719mm/an
PET
1 310mm
AET
1 123mm
Mean slope
4,0°
Water table
161cm
Forest
25%
Crops
22%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)