HydroBASINS lev08 watershed · #6080813100
Bassin de Rio Irani
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 18 administrative regions : Arvoredo, Catanduvas, Chapecó, Cordilheira Alta, Faxinal dos Guedes +13
Sub-basin area
1 586,3km²
Upstream area
1 586,5km²
Discharge
50,14m³/s
Mean elev.
821m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
18 dept-equivalent regions (GADM L2)
- 274.8 km²17.4% of basin
- 203.5 km²12.9% of basin
- 182.6 km²11.5% of basin
- 144.4 km²9.1% of basin
- Vargem Bonita131.0 km²8.3% of basin
- 118.9 km²7.5% of basin
- 112.8 km²7.1% of basin
- 84.8 km²5.4% of basin
10 moreFull L2 list
- Irani84.5 km² · 5.3%
- Arvoredo75.6 km² · 4.8%
- Lindóia do Sul44.6 km² · 2.8%
- Paial34.0 km² · 2.1%
- Água Doce32.2 km² · 2.0%
- Seara27.2 km² · 1.7%
- Cordilheira Alta11.3 km² · 0.7%
- Vargeão11.0 km² · 0.7%
- Passos Maia10.1 km² · 0.6%
- Catanduvas0.1 km² · 0.0%
8 intersecting protected areas
Toldo Pinhal
IUCN Not ReportedIndigenous Area
32.13 km² overlap
Toldo Chimbangue
IUCN Not ReportedIndigenous Area
10.20 km² overlap
Toldo Chimbangue II
IUCN Not ReportedIndigenous Area
9.68 km² overlap
Aldeia Kondá
IUCN Not ReportedIndigenous Reserve
7.06 km² overlap
Toldo Pinhal
IUCN Not ReportedIndigenous Area
4.60 km² overlap
Park
2.57 km² overlap
Natural Heritage Private Reserve
0.18 km² overlap
Natural Heritage Private Reserve
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 201 distinct species · 6 576 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Irani : 23 espèces reliées par 51 interactions GloBI sur 4 types (connectance 8.1%, filtre Serrano α=0.2). 13 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°
17,3°C
Annual rain
2 093mm
Moisture idx (CMI)
0,33
Runoff
977mm/an
PET
1 401mm
AET
1 353mm
Mean slope
9,9°
Water table
408cm
Forest
30%
Crops
33%
Urban
3%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)