Ontologia

State · bra

Piauí

Brazil

AwTropical, savannah(74 %)

Species observed

5 226

Observations

81 317

Area

251 755,5km²

Ecological tissue

Sample of 35 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

Indicateurs du tissu écologique

Tissu écologique de Piauí : 26 espèces reliées par 43 interactions GloBI sur 5 types (connectance 6.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
43
Connectance
0.068
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Species present

5 226 distinct species · 81 317 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

81 317 obs · 120 cellules
Obs. / cellule
≥ 6 707
1 564–6 706
430–1 563
253–429
< 253

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

27,1°C

Annual rain

995mm

Warmest m°

34,6°C

Coldest m°

21,1°C

Elevation: 349 m on average (min -47 m, max 859 m)

Bioclimatic detailsExpert
Annual mean temp.
27,1°C
Annual rain
995mm
Warmest month
34,6°C
Coldest month
21,1°C
Mean alt.
349m
Min
-47m
Max
859m
Std. dev.
160m
Köppen-Geiger (dominant)
AwTropical, savannah(74 %)Tropical

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

5,6

Org. C

13,1g/kg

Clay

22,9%

Sand

59,0%

Silt

18,0%

Average over 0-30 cm. Per-depth details in expert panel.

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
19,1g/kg
Clay
21,4%
Sand
60,1%
Silt
18,4%
5–15 cm
pH H₂O
5,5
Org. C
11,6g/kg
Clay
21,7%
Sand
60,1%
Silt
18,2%
15–30 cm
pH H₂O
5,5
Org. C
8,6g/kg
Clay
25,7%
Sand
56,8%
Silt
17,5%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest29.8%
Crops19.0%
Built-up0.1%
Bare soil0.3%
Other (grassland, water…)50.8%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology425 basins · 50 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

19 659,3km

Lake surface here

350,92km²

Basins crossed

425

Max stream order

8

Max drainage

332 987km²

Discharge in basins

17 401,6m³/s

Mean precip.

997mm/an

Mean T°

26,0°C

Moisture idx

-0,46

Mean runoff

145mm/an

Mean elev. (basins)

354m

Watersheds crossing here

416 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (100, ord ≥ 4)

88 more river segments

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

10,3%

Pesticides

48,9kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas42

IUCN V · 17IUCN II · 11IUCN IV · 7IUCN Ia · 3IUCN VI · 2IUCN III · 2🌊 Marine · 5📍 Point sites · 1
Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations200