Ontologia

Commune · IND

Chengannur

India

AmTropical, monsoon(100 %)

Species observed

469

Observations

41 698

Area

149km²

Ecological tissue

Sample of 32 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 Chengannur : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 41 interactions GloBI sur 4 types (connectance 8.3%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
41
Connectance
0.083
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

469 distinct species · 41 698 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

41 698 obs · 3 cellules
Obs. / cellule
≥ 27 134
27 134–27 133
27 134–27 133
10 421–27 133
< 10 421

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

Climate

Mean T°

27,2°C

Annual rain

2 896mm

Warmest m°

33,4°C

Coldest m°

22,4°C

Elevation: 11 m on average (min 0 m, max 40 m)

Bioclimatic detailsExpert
Annual mean temp.
27,2°C
Annual rain
2 896mm
Warmest month
33,4°C
Coldest month
22,4°C
Mean alt.
11m
Min
0m
Max
40m
Std. dev.
9m
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

5,4

Org. C

37,4g/kg

Clay

31,9%

Sand

33,6%

Silt

34,5%

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

Dominant lithology: mtGLiMaggregated to Alappuzha

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,4
Org. C
42,9g/kg
Clay
30,4%
Sand
34,6%
Silt
35,0%
5–15 cm
pH H₂O
5,4
Org. C
38,2g/kg
Clay
30,4%
Sand
34,3%
Silt
35,3%
15–30 cm
pH H₂O
5,4
Org. C
31,0g/kg
Clay
34,8%
Sand
32,0%
Silt
33,2%

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

Land cover

Forest61.7%
Crops9.3%
Built-up6.0%
Bare soil0.3%
Other (grassland, water…)22.7%

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

Hydrology3 basins · 0 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

38,1km

Basins crossed

3

Max stream order

4

Max drainage

3 955km²

Discharge in basins

13,3m³/s

Mean precip.

2 441mm/an

Mean T°

26,5°C

Moisture idx

0,38

Mean runoff

1 254mm/an

Mean elev. (basins)

193m

Watersheds crossing here

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

Human pressure

Pop. density

12hab/km²

Night light

1,8nW

Built-up

604,3%

Pesticides

5,0kg/km²

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