Ontologia

Division · LKA

Thunukkai

Sri Lanka

AwTropical, savannah(100 %)

Species observed

138

Observations

343

Area

320,9km²

Ecological tissue

Sample of 35 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 Thunukkai : 33 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 26 interactions GloBI sur 3 types (connectance 4.4%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
26
Connectance
0.044
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

138 distinct species · 343 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

343 obs · 7 cellules
Obs. / cellule
≥ 218
218–217
44–217
2–43
< 2

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

Climate

Mean T°

27,8°C

Annual rain

1 291mm

Warmest m°

33,1°C

Coldest m°

22,1°C

Elevation: 34 m on average (min 13 m, max 54 m)

Bioclimatic detailsExpert
Annual mean temp.
27,8°C
Annual rain
1 291mm
Warmest month
33,1°C
Coldest month
22,1°C
Mean alt.
34m
Min
13m
Max
54m
Std. dev.
7m
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

6,0

Org. C

50,8g/kg

Clay

31,2%

Sand

38,6%

Silt

30,2%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
62,3g/kg
Clay
30,6%
Sand
39,1%
Silt
30,3%
5–15 cm
pH H₂O
5,9
Org. C
46,7g/kg
Clay
31,4%
Sand
38,6%
Silt
30,0%
15–30 cm
pH H₂O
6,0
Org. C
43,5g/kg
Clay
31,6%
Sand
38,0%
Silt
30,4%

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

Land cover

Forest59.2%
Crops19.3%
Built-up0.2%
Bare soil1.1%
Other (grassland, water…)20.2%

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

Hydrology2 basins · 8 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

30,3km

Lake surface here

10,29km²

Basins crossed

2

Max stream order

2

Max drainage

1 876km²

Discharge in basins

0,2m³/s

Mean precip.

1 318mm/an

Mean T°

27,6°C

Moisture idx

-0,03

Mean runoff

351mm/an

Mean elev. (basins)

29m

Watersheds crossing here

Lakes (8, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

18,4%

Pesticides

12,2kg/km²

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

Protected areas5

IUCN Ib · 5

Thunukkai

IUCN Ib

Reserved Forest · 2012

254 km²

Iranamadu

IUCN Ib

Reserved Forest · 1930

81 km²

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