Ontologia

State · ind

Tamil Nadu

India

AwTropical, savannah(93 %)

Species observed

11 043

Observations

5 605 727

Area

130 280,9km²

Ecological tissue

Sample of 38 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 Tamil Nadu : 30 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 53 interactions GloBI sur 3 types (connectance 7.2%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
53
Connectance
0.071
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

11 043 distinct species · 5 605 727 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 605 727 obs · 71 cellules
Obs. / cellule
≥ 552 646
179 399–552 645
77 915–179 398
41 476–77 914
< 41 476

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

Climate

Mean T°

27,2°C

Annual rain

1 029mm

Warmest m°

35,9°C

Coldest m°

18,9°C

Elevation: 272 m on average (min -49 m, max 2 451 m)

Bioclimatic detailsExpert
Annual mean temp.
27,2°C
Annual rain
1 029mm
Warmest month
35,9°C
Coldest month
18,9°C
Mean alt.
272m
Min
-49m
Max
2 451m
Std. dev.
341m
Köppen-Geiger (dominant)
AwTropical, savannah(93 %)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

24,0g/kg

Clay

33,7%

Sand

37,5%

Silt

28,8%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,9
Org. C
35,3g/kg
Clay
31,9%
Sand
38,7%
Silt
29,4%
5–15 cm
pH H₂O
6,9
Org. C
20,9g/kg
Clay
33,1%
Sand
37,9%
Silt
29,0%
15–30 cm
pH H₂O
6,9
Org. C
15,8g/kg
Clay
36,2%
Sand
35,9%
Silt
27,9%

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

Land cover

Forest20.4%
Crops46.2%
Built-up1.8%
Bare soil2.5%
Other (grassland, water…)29.0%

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

Hydrology219 basins · 50 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

9 772,9km

Lake surface here

436,61km²

Basins crossed

219

Max stream order

6

Max drainage

78 370km²

Discharge in basins

5 018,0m³/s

Mean precip.

944mm/an

Mean T°

27,4°C

Moisture idx

-0,43

Mean runoff

234mm/an

Mean elev. (basins)

271m

Watersheds crossing here

210 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

5hab/km²

Night light

1,5nW

Built-up

179,9%

Pesticides

4,4kg/km²

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

Protected areas14

IUCN Not Reported · 9IUCN V · 2IUCN IV · 2IUCN Not Applicable · 1🌊 Marine · 2

Western Ghats

IUCN Not Applicable

World Heritage Site (natural or mixed) · 2012

8 115 km²

Complete list

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

Sub-administrations122