Ontologia

Commune · IND

Tiruvadanai

India

AwTropical, savannah(100 %)

Species observed

203

Observations

4 400

Area

1 002,6km²

Ecological tissue

Sample of 26 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 Tiruvadanai : 18 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 3 types (connectance 11.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
36
Connectance
0.111
Patrimoniales
3
Plus dense que (national)0 %(top 100%)

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

Species present

203 distinct species · 4 400 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 400 obs · 22 cellules
Obs. / cellule
≥ 1 447
414–1 446
252–413
75–251
< 75

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

Climate

Mean T°

28,5°C

Annual rain

929mm

Warmest m°

35,0°C

Coldest m°

21,9°C

Elevation: 18 m on average (min -2 m, max 69 m)

Bioclimatic detailsExpert
Annual mean temp.
28,5°C
Annual rain
929mm
Warmest month
35,0°C
Coldest month
21,9°C
Mean alt.
18m
Min
-2m
Max
69m
Std. dev.
11m
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

7,5

Org. C

31,1g/kg

Clay

37,1%

Sand

33,1%

Silt

29,8%

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

Dominant lithology: ssGLiMaggregated to Ramanathapuram

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,4
Org. C
46,5g/kg
Clay
34,7%
Sand
34,6%
Silt
30,6%
5–15 cm
pH H₂O
7,4
Org. C
24,6g/kg
Clay
36,0%
Sand
33,7%
Silt
30,3%
15–30 cm
pH H₂O
7,5
Org. C
22,3g/kg
Clay
40,6%
Sand
31,0%
Silt
28,5%

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

Land cover

Forest2.6%
Crops57.4%
Built-up0.9%
Bare soil7.5%
Other (grassland, water…)31.6%

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

Hydrology6 basins · 0 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

144,2km

Basins crossed

6

Max stream order

4

Max drainage

2 863km²

Discharge in basins

2,1m³/s

Mean precip.

886mm/an

Mean T°

28,8°C

Moisture idx

-0,44

Mean runoff

158mm/an

Mean elev. (basins)

34m

Watersheds crossing here

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

Human pressure

Pop. density

2hab/km²

Night light

0,4nW

Built-up

86,6%

Pesticides

4,5kg/km²

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