Ontologia

District · lka

Anuradhapura

Sri Lanka

AwTropical, savannah(99 %)

Species observed

1 437

Observations

75 574

Area

7 206,1km²

Ecological tissue

Sample of 33 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 Anuradhapura : 30 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 3 types (connectance 6.1%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
32
Connectance
0.061
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

1 437 distinct species · 75 574 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

75 574 obs · 154 cellules
Obs. / cellule
≥ 9 060
1 010–9 059
177–1 009
68–176
< 68

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

Climate

Mean T°

27,2°C

Annual rain

1 346mm

Warmest m°

33,4°C

Coldest m°

21,2°C

Elevation: 97 m on average (min 16 m, max 476 m)

Bioclimatic detailsExpert
Annual mean temp.
27,2°C
Annual rain
1 346mm
Warmest month
33,4°C
Coldest month
21,2°C
Mean alt.
97m
Min
16m
Max
476m
Std. dev.
37m
Köppen-Geiger (dominant)
AwTropical, savannah(99 %)Tropical

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

Soil & lithology

pH H₂O

5,8

Org. C

37,9g/kg

Clay

30,1%

Sand

43,7%

Silt

26,2%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
50,1g/kg
Clay
29,2%
Sand
44,3%
Silt
26,6%
5–15 cm
pH H₂O
5,8
Org. C
34,3g/kg
Clay
29,8%
Sand
44,1%
Silt
26,0%
15–30 cm
pH H₂O
5,9
Org. C
29,2g/kg
Clay
31,3%
Sand
42,8%
Silt
25,9%

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

Land cover

Forest61.6%
Crops17.1%
Built-up0.7%
Bare soil0.4%
Other (grassland, water…)20.2%

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

Hydrology20 basins · 50 lakes · 19 rivers

Hydrology metrics for this exact territory

Stream length here

405,6km

Lake surface here

151,86km²

Basins crossed

20

Max stream order

4

Max drainage

3 345km²

Discharge in basins

114,2m³/s

Mean precip.

1 404mm/an

Mean T°

27,3°C

Moisture idx

-0,10

Mean runoff

464mm/an

Mean elev. (basins)

98m

Watersheds crossing here

11 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (19, ord ≥ 4)

7 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

0,1nW

Built-up

66,1%

Pesticides

11,9kg/km²

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

Protected areas45

IUCN Ib · 32IUCN IV · 7IUCN Ia · 4IUCN II · 1IUCN Not Applicable · 1🌊 Marine · 1📍 Point sites · 1

Wilpattu

IUCN II

National Park · 1938

1 313 km²

Kantalai

IUCN Ib

Reserved Forest · 1902

467 km²

Paddawiya

IUCN Ib

Reserved Forest · 2013

358 km²

Hurulu

IUCN Ia

Conservation Forest · 2012

184 km²

Complete list

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

Sub-administrations22