Municipality · BRA
Várzea Alegre
Brazil
Species observed
138
Observations
389
Area
830km²
Ecological tissue
Sample of 40 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 Várzea Alegre : 32 espèces reliées par 39 interactions GloBI sur 4 types (connectance 5.0%, 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).
Species present
138 distinct species · 389 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,2°C
Annual rain
962mm
Warmest m°
34,4°C
Coldest m°
20,8°C
Elevation: 364 m on average (min 273 m, max 601 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
5,9
Org. C
13,0g/kg
Clay
27,7%
Sand
50,2%
Silt
22,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiM
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)
Hydrology4 basins · 5 lakes · 7 rivers
Hydrology metrics for this exact territory
Stream length here
128,3km
Lake surface here
3,23km²
Basins crossed
4
Max stream order
3
Max drainage
13 062km²
Discharge in basins
6,2m³/s
Mean precip.
953mm/an
Mean T°
25,9°C
Moisture idx
-0,45
Mean runoff
86mm/an
Mean elev. (basins)
367m
Watersheds crossing here
Lakes (5, top by area)
Rivers / streams (7, ord ≥ 4)
- Riacho do Machadoord 5len here64.86 km72%total90 km
- Riacho Fortunaord 2len here24.30 km54%total45 km
- Riacho do Meioord 2len here16.54 km37%total45 km
- Riacho Caianaord 1len here8.63 km100%total9 km
- Riacho do Feijãoord 1len here6.63 km100%total7 km
- Riacho Caatinga Grandeord 2len here4.83 km81%total6 km
- Riacho das Tabocasord 1len here2.55 km100%total3 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,7nW
Built-up
33,6%
Pesticides
54,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)