Ontologia

Commune · IND

Polur

India

AwTropical, savannah(100 %)

Species observed

391

Observations

4 453

Area

1 382,6km²

Ecological tissue

Sample of 37 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 Polur : 32 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 41 interactions GloBI sur 3 types (connectance 6.2%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
41
Connectance
0.062
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

391 distinct species · 4 453 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 453 obs · 36 cellules
Obs. / cellule
≥ 1 559
350–1 558
95–349
33–94
< 33

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

1 225mm

Warmest m°

36,2°C

Coldest m°

16,8°C

Elevation: 349 m on average (min 137 m, max 989 m)

Bioclimatic detailsExpert
Annual mean temp.
26,4°C
Annual rain
1 225mm
Warmest month
36,2°C
Coldest month
16,8°C
Mean alt.
349m
Min
137m
Max
989m
Std. dev.
221m
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

6,7

Org. C

24,2g/kg

Clay

33,2%

Sand

37,4%

Silt

29,4%

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

Dominant lithology: paGLiMaggregated to Tiruvannamalai

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,7
Org. C
34,9g/kg
Clay
31,0%
Sand
39,0%
Silt
30,0%
5–15 cm
pH H₂O
6,7
Org. C
22,2g/kg
Clay
32,5%
Sand
37,6%
Silt
29,9%
15–30 cm
pH H₂O
6,8
Org. C
15,4g/kg
Clay
35,9%
Sand
35,7%
Silt
28,4%

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

Land cover

Forest38.9%
Crops39.4%
Built-up0.7%
Bare soil0.8%
Other (grassland, water…)20.2%

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

Hydrology6 basins · 5 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

139,2km

Lake surface here

1,18km²

Basins crossed

6

Max stream order

4

Max drainage

2 650km²

Discharge in basins

12,6m³/s

Mean precip.

1 021mm/an

Mean T°

27,3°C

Moisture idx

-0,41

Mean runoff

220mm/an

Mean elev. (basins)

313m

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

0,6nW

Built-up

68,6%

Pesticides

3,8kg/km²

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