Ontologia

Division · LKA

Karachchi

Sri Lanka

AwTropical, savannah(100 %)

Species observed

253

Observations

1 405

Area

393,1km²

Ecological tissue

Sample of 34 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 Karachchi : 30 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 6.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
34
Connectance
0.061
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

253 distinct species · 1 405 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 405 obs · 8 cellules
Obs. / cellule
≥ 469
469–468
221–468
159–220
< 159

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

Climate

Mean T°

27,8°C

Annual rain

1 278mm

Warmest m°

32,6°C

Coldest m°

23,0°C

Elevation: 18 m on average (min 2 m, max 43 m)

Bioclimatic detailsExpert
Annual mean temp.
27,8°C
Annual rain
1 278mm
Warmest month
32,6°C
Coldest month
23,0°C
Mean alt.
18m
Min
2m
Max
43m
Std. dev.
11m
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

51,6g/kg

Clay

28,5%

Sand

38,9%

Silt

32,6%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
63,3g/kg
Clay
28,0%
Sand
39,3%
Silt
32,8%
5–15 cm
pH H₂O
6,1
Org. C
48,1g/kg
Clay
28,9%
Sand
38,8%
Silt
32,4%
15–30 cm
pH H₂O
6,2
Org. C
43,4g/kg
Clay
28,8%
Sand
38,6%
Silt
32,6%

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

Land cover

Forest34.8%
Crops36.0%
Built-up1.4%
Bare soil1.9%
Other (grassland, water…)25.9%

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

Hydrology2 basins · 9 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

43,5km

Lake surface here

5,61km²

Basins crossed

2

Max stream order

3

Max drainage

1 876km²

Discharge in basins

0,8m³/s

Mean precip.

1 332mm/an

Mean T°

27,6°C

Moisture idx

-0,03

Mean runoff

358mm/an

Mean elev. (basins)

34m

Watersheds crossing here

Lakes (9, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

135,7%

Pesticides

12,4kg/km²

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

Protected areas9

IUCN Ib · 9

Thunukkai

IUCN Ib

Reserved Forest · 2012

254 km²

Akkiriyan

IUCN Ib

Reserved Forest · 1973

82 km²

Iranamadu

IUCN Ib

Reserved Forest · 1930

81 km²

Complete list

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