Ontologia

Division · LKA

Nivithigala

Sri Lanka

AfTropical, rainforest(100 %)

Species observed

218

Observations

1 936

Area

157,7km²

Ecological tissue

Sample of 24 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 Nivithigala : 21 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 16 interactions GloBI sur 4 types (connectance 5.8%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
16
Connectance
0.058
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

218 distinct species · 1 936 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 936 obs · 3 cellules
Obs. / cellule
≥ 957
957–956
957–956
855–956
< 855

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

Climate

Mean T°

24,6°C

Annual rain

3 040mm

Warmest m°

29,6°C

Coldest m°

19,9°C

Elevation: 259 m on average (min 50 m, max 833 m)

Bioclimatic detailsExpert
Annual mean temp.
24,6°C
Annual rain
3 040mm
Warmest month
29,6°C
Coldest month
19,9°C
Mean alt.
259m
Min
50m
Max
833m
Std. dev.
175m
Köppen-Geiger (dominant)
AfTropical, rainforest(100 %)Tropical

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

Soil & lithology

pH H₂O

5,2

Org. C

66,8g/kg

Clay

40,0%

Sand

30,1%

Silt

29,9%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,2
Org. C
75,2g/kg
Clay
39,2%
Sand
31,0%
Silt
29,8%
5–15 cm
pH H₂O
5,2
Org. C
61,5g/kg
Clay
40,0%
Sand
30,1%
Silt
29,9%
15–30 cm
pH H₂O
5,2
Org. C
63,6g/kg
Clay
40,7%
Sand
29,2%
Silt
30,1%

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

Land cover

Forest82.0%
Crops3.1%
Built-up0.5%
Bare soil0.0%
Other (grassland, water…)14.3%

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

Hydrology5 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

45,0km

Basins crossed

5

Max stream order

3

Max drainage

1 680km²

Discharge in basins

7,7m³/s

Mean precip.

3 490mm/an

Mean T°

25,5°C

Moisture idx

0,57

Mean runoff

1 395mm/an

Mean elev. (basins)

308m

Watersheds crossing here

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

Human pressure

Pop. density

3hab/km²

Night light

0,1nW

Built-up

50,2%

Pesticides

12,0kg/km²

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

Protected areas2

IUCN Ib · 2

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