Ontologia

Commune · IND

Ariyalur

India

AwTropical, savannah(100 %)

Species observed

595

Observations

52 187

Area

1 003,7km²

Ecological tissue

Sample of 29 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 Ariyalur : 21 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 4 types (connectance 8.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
34
Connectance
0.084
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

595 distinct species · 52 187 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

52 187 obs · 26 cellules
Obs. / cellule
≥ 20 058
10 095–20 057
490–10 094
192–489
< 192

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

Climate

Mean T°

28,6°C

Annual rain

1 063mm

Warmest m°

38,2°C

Coldest m°

19,9°C

Elevation: 66 m on average (min 29 m, max 110 m)

Bioclimatic detailsExpert
Annual mean temp.
28,6°C
Annual rain
1 063mm
Warmest month
38,2°C
Coldest month
19,9°C
Mean alt.
66m
Min
29m
Max
110m
Std. dev.
20m
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

7,4

Org. C

22,1g/kg

Clay

36,9%

Sand

34,8%

Silt

28,3%

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

Dominant lithology: ssGLiMaggregated to Ariyalur

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,3
Org. C
36,1g/kg
Clay
34,7%
Sand
36,2%
Silt
29,2%
5–15 cm
pH H₂O
7,4
Org. C
17,5g/kg
Clay
35,9%
Sand
35,5%
Silt
28,7%
15–30 cm
pH H₂O
7,4
Org. C
12,7g/kg
Clay
40,1%
Sand
32,8%
Silt
27,1%

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

Land cover

Forest10.1%
Crops60.6%
Built-up1.2%
Bare soil3.5%
Other (grassland, water…)24.6%

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

Hydrology7 basins · 5 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

136,2km

Lake surface here

4,52km²

Basins crossed

7

Max stream order

6

Max drainage

78 370km²

Discharge in basins

91,6m³/s

Mean precip.

964mm/an

Mean T°

28,7°C

Moisture idx

-0,44

Mean runoff

185mm/an

Mean elev. (basins)

80m

Watersheds crossing here

Lakes (5, top by area)

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

Human pressure

Pop. density

3hab/km²

Night light

2,0nW

Built-up

119,7%

Pesticides

4,4kg/km²

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