Ontologia

Division · LKA

Thissamaharama

Sri Lanka

AwTropical, savannah(100 %)

Species observed

963

Observations

187 702

Area

806,8km²

Ecological tissue

Sample of 30 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 Thissamaharama : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 33 interactions GloBI sur 3 types (connectance 7.6%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
33
Connectance
0.076
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

963 distinct species · 187 702 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

187 702 obs · 20 cellules
Obs. / cellule
≥ 83 418
47 241–83 417
5 416–47 240
3 437–5 415
< 3 437

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 063mm

Warmest m°

31,5°C

Coldest m°

23,4°C

Elevation: 29 m on average (min -22 m, max 185 m)

Bioclimatic detailsExpert
Annual mean temp.
27,2°C
Annual rain
1 063mm
Warmest month
31,5°C
Coldest month
23,4°C
Mean alt.
29m
Min
-22m
Max
185m
Std. dev.
21m
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

5,9

Org. C

32,9g/kg

Clay

36,6%

Sand

33,6%

Silt

29,8%

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

Dominant lithology: paGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
47,2g/kg
Clay
35,5%
Sand
34,2%
Silt
30,3%
5–15 cm
pH H₂O
5,9
Org. C
29,1g/kg
Clay
35,5%
Sand
34,3%
Silt
30,2%
15–30 cm
pH H₂O
5,9
Org. C
22,3g/kg
Clay
38,7%
Sand
32,4%
Silt
29,0%

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

Land cover

Forest63.0%
Crops16.3%
Built-up0.5%
Bare soil0.7%
Other (grassland, water…)19.6%

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

Hydrology3 basins · 10 lakes · 17 rivers

Hydrology metrics for this exact territory

Stream length here

95,2km

Lake surface here

13,12km²

Basins crossed

3

Max stream order

4

Max drainage

3 992km²

Discharge in basins

2,8m³/s

Mean precip.

1 393mm/an

Mean T°

26,4°C

Moisture idx

-0,06

Mean runoff

670mm/an

Mean elev. (basins)

143m

Watersheds crossing here

Lakes (10, top by area)

1 more lakes

Rivers / streams (17, ord ≥ 4)

5 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

47,5%

Pesticides

11,9kg/km²

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

Protected areas11

IUCN IV · 4IUCN II · 2IUCN Ia · 2IUCN Ib · 2IUCN Not Reported · 1🌊 Marine · 6

Yala NP

IUCN II

National Park · 1970

980 km²

Kumana NP

IUCN II

National Park · 2006

358 km²

Yala

IUCN Ia

Strict Nature Reserve · 1939

219 km²

Bundala

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 1990

50 km²

Complete list

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