Municipality · BRA
Porto Alegre do Piauí
Brazil
Species observed
51
Observations
69
Area
1 168km²
Ecological tissue
Sample of 5 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 Porto Alegre do Piauí : 4 espèces reliées par 3 interactions GloBI sur 2 types (connectance 30.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
51 distinct species · 69 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,1°C
Annual rain
1 020mm
Warmest m°
34,0°C
Coldest m°
22,3°C
Elevation: 254 m on average (min 157 m, max 421 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
5,4
Org. C
14,8g/kg
Clay
24,5%
Sand
58,3%
Silt
17,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiM
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)
Hydrology9 basins · 2 lakes · 20 rivers
Hydrology metrics for this exact territory
Stream length here
237,4km
Lake surface here
63,32km²
Basins crossed
9
Max stream order
7
Max drainage
85 421km²
Discharge in basins
1 402,7m³/s
Mean precip.
1 067mm/an
Mean T°
26,9°C
Moisture idx
-0,41
Mean runoff
230mm/an
Mean elev. (basins)
260m
Watersheds crossing here
- Bassin de Riacho do Cardososub-area1 302 km²overlap387.90 km²33%
- Bassin de Riacho do Enganosub-area319,3 km²overlap275.68 km²24%
- Bassin de Rio Parnaíbasub-area360,2 km²overlap196.06 km²17%
- Bassin de Rio Parnaíbasub-area122,5 km²overlap75.28 km²6%
- Bassin de Riacho dos Pombossub-area109 km²overlap71.76 km²6%
- Bassin de Rio Parnaíbasub-area1 546,2 km²overlap67.48 km²6%
- Bassin de Riacho do Uruçusub-area738,9 km²overlap64.77 km²6%
- Bassin de Rio Parnaíbasub-area40 km²overlap28.87 km²2%
- Bassin de Rio Parnaíbasub-area242,3 km²overlap0.24 km²0%
Lakes (2, top by area)
Rivers / streams (20, ord ≥ 4)
- Rio Parnaíbaord 8len here39.96 km2%total2015 km
- Riacho do Enganoord 3len here36.96 km46%total81 km
- Riacho do Cardosoord 4len here36.57 km39%total94 km
- Riacho do Cocalord 2len here28.65 km49%total58 km
- Riacho Santanaord 4len here15.34 km13%total114 km
- Riacho dos Pombosord 7len here13.56 km100%total14 km
- Riacho da Cana Bravaord 7len here12.28 km12%total100 km
- Riacho da Mangabaord 1len here10.24 km100%total10 km
- Riacho do Tapuioord 1len here9.97 km53%total19 km
- Riacho do Angicoord 4len here7.14 km7%total102 km
- Riacho da Portaord 6len here5.04 km17%total30 km
- Riacho do Gravalaord 1len here5.03 km100%total5 km
8 more river segmentssorted by Strahler order + length
- Riacho Compridoord 1len here4.97 km68%total7 km
- Vereda da Lagoinhaord 1len here2.96 km78%total4 km
- Riacho da Tabocaord 7len here2.84 km8%total36 km
- Vereda dos Patosord 1len here2.58 km21%total12 km
- Riacho Guaribasord 2len here2.26 km14%total16 km
- Riacho Salobroord 2len here0.69 km3%total25 km
- Vereda da Cana Bravaord 1len here0.21 km6%total4 km
- Riacho do Pauloord 3len here0.17 km1%total29 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
3,2%
Pesticides
24,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)