Ontologia

Commune · IND

Perumbavur

India

AmTropical, monsoon(100 %)

Species observed

964

Observations

61 998

Area

687,4km²

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 Perumbavur : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 3 types (connectance 8.9%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
36
Connectance
0.089
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

964 distinct species · 61 998 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

61 998 obs · 17 cellules
Obs. / cellule
≥ 10 204
8 768–10 203
4 304–8 767
2 372–4 303
< 2 372

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

Climate

Mean T°

26,4°C

Annual rain

3 197mm

Warmest m°

34,5°C

Coldest m°

20,7°C

Elevation: 73 m on average (min 3 m, max 586 m)

Bioclimatic detailsExpert
Annual mean temp.
26,4°C
Annual rain
3 197mm
Warmest month
34,5°C
Coldest month
20,7°C
Mean alt.
73m
Min
3m
Max
586m
Std. dev.
112m
Köppen-Geiger (dominant)
AmTropical, monsoon(100 %)Tropical

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

Soil & lithology

pH H₂O

5,3

Org. C

29,9g/kg

Clay

32,4%

Sand

39,0%

Silt

28,5%

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

Dominant lithology: mtGLiMaggregated to Ernakulam

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
38,8g/kg
Clay
30,7%
Sand
40,3%
Silt
29,0%
5–15 cm
pH H₂O
5,3
Org. C
30,8g/kg
Clay
31,5%
Sand
39,6%
Silt
28,9%
15–30 cm
pH H₂O
5,3
Org. C
19,9g/kg
Clay
35,1%
Sand
37,2%
Silt
27,7%

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

Land cover

Forest67.8%
Crops5.0%
Built-up4.4%
Bare soil0.3%
Other (grassland, water…)22.4%

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

Hydrology5 basins · 2 lakes · 34 rivers

Hydrology metrics for this exact territory

Stream length here

177,6km

Lake surface here

0,63km²

Basins crossed

5

Max stream order

5

Max drainage

4 513km²

Discharge in basins

108,9m³/s

Mean precip.

3 241mm/an

Mean T°

27,1°C

Moisture idx

0,53

Mean runoff

1 931mm/an

Mean elev. (basins)

102m

Watersheds crossing here

Lakes (2, top by area)

Rivers / streams (34, ord ≥ 4)

22 more river segments

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

Human pressure

Pop. density

9hab/km²

Night light

3,2nW

Built-up

442,5%

Pesticides

4,8kg/km²

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