Ontologia

Division · LKA

Polpithigama

Sri Lanka

AmTropical, monsoon(79 %)

Species observed

171

Observations

977

Area

405,4km²

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 Polpithigama : 28 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 3 types (connectance 6.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
30
Connectance
0.060
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

171 distinct species · 977 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

977 obs · 9 cellules
Obs. / cellule
≥ 540
540–539
94–539
39–93
< 39

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 429mm

Warmest m°

33,1°C

Coldest m°

21,2°C

Elevation: 146 m on average (min 78 m, max 378 m)

Bioclimatic detailsExpert
Annual mean temp.
26,4°C
Annual rain
1 429mm
Warmest month
33,1°C
Coldest month
21,2°C
Mean alt.
146m
Min
78m
Max
378m
Std. dev.
43m
Köppen-Geiger (dominant)
AmTropical, monsoon(79 %)Tropical

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

Soil & lithology

pH H₂O

5,6

Org. C

28,8g/kg

Clay

31,9%

Sand

38,5%

Silt

29,7%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
41,2g/kg
Clay
30,1%
Sand
39,4%
Silt
30,4%
5–15 cm
pH H₂O
5,6
Org. C
26,8g/kg
Clay
31,4%
Sand
38,9%
Silt
29,8%
15–30 cm
pH H₂O
5,6
Org. C
18,4g/kg
Clay
34,1%
Sand
37,1%
Silt
28,8%

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

Land cover

Forest63.8%
Crops11.6%
Built-up0.8%
Bare soil0.6%
Other (grassland, water…)23.2%

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

Hydrology4 basins · 3 lakes · 12 rivers

Hydrology metrics for this exact territory

Stream length here

64,6km

Lake surface here

2,98km²

Basins crossed

4

Max stream order

4

Max drainage

2 873km²

Discharge in basins

7,6m³/s

Mean precip.

1 479mm/an

Mean T°

27,1°C

Moisture idx

-0,08

Mean runoff

624mm/an

Mean elev. (basins)

135m

Watersheds crossing here

Lakes (3, top by area)

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

Human pressure

Pop. density

2hab/km²

Night light

0,0nW

Built-up

82,6%

Pesticides

11,8kg/km²

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

Protected areas13

IUCN Ib · 12IUCN IV · 1

Pallekele

IUCN Ib

Reserved Forest · 1896

153 km²

Kahalla

IUCN Ib

Reserved Forest · 1935

33 km²

Complete list

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