Ontologia

Division · LKA

Wellawaya

Sri Lanka

AwTropical, savannah(63 %)

Species observed

469

Observations

9 591

Area

590,3km²

Ecological tissue

Sample of 29 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 Wellawaya : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 3 types (connectance 5.7%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
23
Connectance
0.057
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 · 9 591 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 591 obs · 14 cellules
Obs. / cellule
≥ 5 695
1 049–5 694
357–1 048
197–356
< 197

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

Climate

Mean T°

26,6°C

Annual rain

1 324mm

Warmest m°

33,8°C

Coldest m°

20,3°C

Elevation: 177 m on average (min 74 m, max 1 279 m)

Bioclimatic detailsExpert
Annual mean temp.
26,6°C
Annual rain
1 324mm
Warmest month
33,8°C
Coldest month
20,3°C
Mean alt.
177m
Min
74m
Max
1 279m
Std. dev.
127m
Köppen-Geiger (dominant)
AwTropical, savannah(63 %)Tropical

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

Soil & lithology

pH H₂O

5,7

Org. C

27,5g/kg

Clay

36,0%

Sand

36,7%

Silt

27,3%

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

Dominant lithology: paGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,7
Org. C
38,0g/kg
Clay
34,6%
Sand
37,4%
Silt
28,0%
5–15 cm
pH H₂O
5,7
Org. C
26,3g/kg
Clay
35,3%
Sand
37,1%
Silt
27,5%
15–30 cm
pH H₂O
5,7
Org. C
18,1g/kg
Clay
38,1%
Sand
35,5%
Silt
26,3%

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

Land cover

Forest62.7%
Crops14.2%
Built-up0.7%
Bare soil0.4%
Other (grassland, water…)22.0%

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

Hydrology3 basins · 6 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

108,2km

Lake surface here

3,08km²

Basins crossed

3

Max stream order

4

Max drainage

2 513km²

Discharge in basins

2,2m³/s

Mean precip.

1 311mm/an

Mean T°

26,3°C

Moisture idx

-0,11

Mean runoff

725mm/an

Mean elev. (basins)

161m

Watersheds crossing here

Lakes (6, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,1nW

Built-up

69,1%

Pesticides

11,9kg/km²

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

Protected areas12

IUCN Ib · 9IUCN IV · 2IUCN II · 1

Kalukanda

IUCN Ib

Reserved Forest · 2013

10 km²

Complete list

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