Ontologia

Commune · TZA

Pera

Tanzania

AwTropical, savannah(100 %)

Species observed

131

Observations

1 356

Area

298,4km²

Ecological tissue

Sample of 32 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 Pera : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 45 interactions GloBI sur 5 types (connectance 7.6%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
45
Connectance
0.076
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

131 distinct species · 1 356 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 356 obs · 5 cellules
Obs. / cellule
≥ 741
741–740
577–740
34–576
< 34

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

25,4°C

Annual rain

967mm

Warmest m°

32,8°C

Coldest m°

19,1°C

Elevation: 131 m on average (min 69 m, max 227 m)

Bioclimatic detailsExpert
Annual mean temp.
25,4°C
Annual rain
967mm
Warmest month
32,8°C
Coldest month
19,1°C
Mean alt.
131m
Min
69m
Max
227m
Std. dev.
37m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical

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

Soil & lithology

pH H₂O

6,5

Org. C

13,3g/kg

Clay

30,7%

Sand

53,0%

Silt

16,3%

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

Dominant lithology: scGLiMaggregated to Bagamoyo

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,5
Org. C
18,9g/kg
Clay
30,5%
Sand
53,3%
Silt
16,2%
5–15 cm
pH H₂O
6,5
Org. C
12,4g/kg
Clay
30,8%
Sand
53,0%
Silt
16,3%
15–30 cm
pH H₂O
6,5
Org. C
8,5g/kg
Clay
30,9%
Sand
52,8%
Silt
16,3%

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

Land cover

Forest20.6%
Crops23.6%
Built-up0.3%
Bare soil0.2%
Other (grassland, water…)55.2%

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

Hydrology3 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

3

Max drainage

14 577km²

Discharge in basins

5,8m³/s

Mean precip.

971mm/an

Mean T°

25,8°C

Moisture idx

-0,44

Mean runoff

101mm/an

Mean elev. (basins)

195m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

31,5%

Pesticides

0,0kg/km²

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