Ontologia

Commune · IND

Ponneri

India

AwTropical, savannah(100 %)

Species observed

526

Observations

17 189

Area

638,3km²

Ecological tissue

Sample of 27 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 Ponneri : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 45 interactions GloBI sur 3 types (connectance 12.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
45
Connectance
0.128
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

526 distinct species · 17 189 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 189 obs · 15 cellules
Obs. / cellule
≥ 6 373
2 756–6 372
962–2 755
522–961
< 522

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

Climate

Mean T°

28,1°C

Annual rain

1 335mm

Warmest m°

35,0°C

Coldest m°

21,6°C

Elevation: 9 m on average (min -8 m, max 37 m)

Bioclimatic detailsExpert
Annual mean temp.
28,1°C
Annual rain
1 335mm
Warmest month
35,0°C
Coldest month
21,6°C
Mean alt.
9m
Min
-8m
Max
37m
Std. dev.
7m
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

6,9

Org. C

30,0g/kg

Clay

33,9%

Sand

34,2%

Silt

31,9%

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

Dominant lithology: suGLiMaggregated to Thiruvallur

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,8
Org. C
41,7g/kg
Clay
31,3%
Sand
36,0%
Silt
32,7%
5–15 cm
pH H₂O
6,9
Org. C
26,0g/kg
Clay
33,6%
Sand
34,1%
Silt
32,3%
15–30 cm
pH H₂O
6,9
Org. C
22,2g/kg
Clay
36,8%
Sand
32,6%
Silt
30,6%

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

Land cover

Forest5.8%
Crops59.2%
Built-up2.8%
Bare soil2.4%
Other (grassland, water…)29.8%

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

Hydrology6 basins · 4 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

86,8km

Lake surface here

4,90km²

Basins crossed

6

Max stream order

5

Max drainage

3 707km²

Discharge in basins

18,9m³/s

Mean precip.

1 100mm/an

Mean T°

28,6°C

Moisture idx

-0,37

Mean runoff

420mm/an

Mean elev. (basins)

40m

Watersheds crossing here

Lakes (4, top by area)

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

Human pressure

Pop. density

5hab/km²

Night light

5,8nW

Built-up

278,0%

Pesticides

4,0kg/km²

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