Ontologia

Division · LKA

Vavuniya

Sri Lanka

AwTropical, savannah(100 %)

Species observed

160

Observations

605

Area

720,7km²

Ecological tissue

Sample of 42 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 Vavuniya : 38 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 3 types (connectance 5.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
43
Connectance
0.050
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

160 distinct species · 605 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

605 obs · 14 cellules
Obs. / cellule
≥ 242
98–241
40–97
28–39
< 28

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

Climate

Mean T°

27,5°C

Annual rain

1 343mm

Warmest m°

33,9°C

Coldest m°

20,9°C

Elevation: 82 m on average (min 43 m, max 115 m)

Bioclimatic detailsExpert
Annual mean temp.
27,5°C
Annual rain
1 343mm
Warmest month
33,9°C
Coldest month
20,9°C
Mean alt.
82m
Min
43m
Max
115m
Std. dev.
13m
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

5,7

Org. C

45,0g/kg

Clay

29,1%

Sand

44,2%

Silt

26,7%

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
54,5g/kg
Clay
27,8%
Sand
45,1%
Silt
27,1%
5–15 cm
pH H₂O
5,7
Org. C
43,9g/kg
Clay
27,9%
Sand
45,3%
Silt
26,8%
15–30 cm
pH H₂O
5,7
Org. C
36,7g/kg
Clay
31,7%
Sand
42,2%
Silt
26,1%

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

Land cover

Forest57.2%
Crops19.9%
Built-up1.0%
Bare soil0.3%
Other (grassland, water…)21.5%

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

Hydrology6 basins · 19 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

58,1km

Lake surface here

14,69km²

Basins crossed

6

Max stream order

3

Max drainage

1 876km²

Discharge in basins

5,8m³/s

Mean precip.

1 375mm/an

Mean T°

27,4°C

Moisture idx

-0,09

Mean runoff

357mm/an

Mean elev. (basins)

70m

Watersheds crossing here

Lakes (19, top by area)

10 more lakes

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

103,6%

Pesticides

11,6kg/km²

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

Protected areas12

IUCN Ib · 12

Maduroad

IUCN Ib

Reserved Forest · 2012

519 km²

Nainamadu

IUCN Ib

Reserved Forest · 1921

94 km²

Complete list

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