Ontologia

Division · LKA

Welikanda

Sri Lanka

AwTropical, savannah(100 %)

Species observed

66

Observations

104

Area

556,6km²

Ecological tissue

Sample of 16 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 Welikanda : 14 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 12 interactions GloBI sur 2 types (connectance 10.0%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
16
Interactions affichées
12
Connectance
0.100
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

66 distinct species · 104 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

104 obs · 8 cellules
Obs. / cellule
≥ 46
46–45
14–45
14–13
< 14

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

Climate

Mean T°

27,9°C

Annual rain

1 488mm

Warmest m°

35,2°C

Coldest m°

21,6°C

Elevation: 32 m on average (min 11 m, max 55 m)

Bioclimatic detailsExpert
Annual mean temp.
27,9°C
Annual rain
1 488mm
Warmest month
35,2°C
Coldest month
21,6°C
Mean alt.
32m
Min
11m
Max
55m
Std. dev.
10m
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

6,1

Org. C

48,8g/kg

Clay

33,7%

Sand

31,2%

Silt

35,1%

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

Dominant lithology: paGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
68,5g/kg
Clay
33,5%
Sand
31,2%
Silt
35,3%
5–15 cm
pH H₂O
6,1
Org. C
43,1g/kg
Clay
33,6%
Sand
31,5%
Silt
34,9%
15–30 cm
pH H₂O
6,1
Org. C
34,7g/kg
Clay
34,1%
Sand
30,8%
Silt
35,1%

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

Land cover

Forest48.5%
Crops28.6%
Built-up0.5%
Bare soil0.5%
Other (grassland, water…)21.9%

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

Hydrology4 basins · 21 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

46,1km

Lake surface here

9,30km²

Basins crossed

4

Max stream order

5

Max drainage

10 161km²

Discharge in basins

101,2m³/s

Mean precip.

1 730mm/an

Mean T°

27,4°C

Moisture idx

0,15

Mean runoff

651mm/an

Mean elev. (basins)

40m

Watersheds crossing here

Lakes (21, top by area)

12 more lakes

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

Human pressure

Pop. density

1hab/km²

Night light

0,1nW

Built-up

45,1%

Pesticides

12,0kg/km²

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

Protected areas9

IUCN Ib · 6IUCN II · 2IUCN IV · 1

Mahaweli

IUCN Ib

Reserved Forest · 1939

156 km²

Complete list

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