Municipality · BRA
Erval Velho
Brazil
Species observed
276
Observations
986
Area
208,8km²
Ecological tissue
Sample of 29 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 Erval Velho : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 3 types (connectance 7.9%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
276 distinct species · 986 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
17,9°C
Annual rain
1 977mm
Warmest m°
26,6°C
Coldest m°
8,9°C
Elevation: 765 m on average (min 543 m, max 979 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,1
Org. C
34,6g/kg
Clay
49,5%
Sand
17,7%
Silt
32,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: vbGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 1 lakes · 11 rivers
Hydrology metrics for this exact territory
Stream length here
76,0km
Lake surface here
1,03km²
Basins crossed
2
Max stream order
5
Max drainage
4 263km²
Discharge in basins
10,1m³/s
Mean precip.
1 797mm/an
Mean T°
16,7°C
Moisture idx
0,25
Mean runoff
945mm/an
Mean elev. (basins)
809m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (11, ord ≥ 4)
- Rio Leãoord 3len here33.62 km38%total89 km
- Rio Erval Velhoord 2len here14.75 km100%total15 km
- Lajeado Barra Friaord 5len here7.60 km86%total9 km
- Rio Arco Verdeord 1len here5.36 km100%total5 km
- Lajeado Monte Alegreord 3len here4.77 km43%total11 km
- Rio do Peixeord 6len here3.85 km1%total388 km
- Arroio Assombradoord 1len here3.51 km100%total4 km
- Arroio dos Almeidasord 1len here1.80 km100%total2 km
- Arroio do Caráord 5len here0.67 km6%total11 km
- Rio Pardoord 1len here0.10 km2%total5 km
- Arroio do Mosquitoord 1len here≈ tangenttotal3 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,4nW
Built-up
44,6%
Pesticides
34,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)