HydroBASINS lev08 watershed · #6080812890

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 7 administrative regions : Ametista do Sul, Caiçara, Cristal do Sul, Frederico Westphalen, Iraí +2

Pfafstetter: 64187781

Sub-basin area

279,1km²

Upstream area

5 480,5km²

Discharge

183,77m³/s

Mean elev.

349m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rio Iracema749 km²

▲ Receives from 2 basins

Bassin de Rio da Várzea1776 km²
Bassin de Lajeado Braga396 km²

7 dept-equivalent regions (GADM L2)

Frederico Westphalen
Rio Grande do Sul · Brazil
153.7 km²
55.2% of basin
Iraí
Rio Grande do Sul · Brazil
51.1 km²
18.3% of basin
Caiçara
Rio Grande do Sul · Brazil
42.1 km²
15.1% of basin
Ametista do Sul
Rio Grande do Sul · Brazil
19.6 km²
7.0% of basin
Vicente Dutra
Rio Grande do Sul · Brazil
11.8 km²
4.2% of basin
Cristal do Sul
Rio Grande do Sul · Brazil
0.2 km²
0.1% of basin
Palmitos
Santa Catarina · Brazil
0.0 km²
0.0% of basin

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

41 distinct species · 53 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 16 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Rio da Várzea : 15 espèces reliées par 13 interactions GloBI sur 3 types (connectance 10.8%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.108

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

20,0°C

Annual rain

1 831mm

Moisture idx (CMI)

0,18

Runoff

934mm/an

PET

1 500mm

AET

1 361mm

Mean slope

8,9°

Water table

346cm

Forest

28%

Crops

44%

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)