Ontologia

Commune · ZAF

Ntambanana

South Africa

CfaTemperate, no dry season, hot summer(100 %)

Species observed

1 643

Observations

27 979

Area

1 082,8km²

Ecological tissue

Sample of 12 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 Ntambanana : 11 espèces reliées par 7 interactions GloBI sur 2 types (connectance 10.6%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
12
Interactions affichées
7
Connectance
0.106
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

1 643 distinct species · 27 979 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

27 979 obs · 30 cellules
Obs. / cellule
≥ 6 541
4 202–6 540
543–4 201
249–542
< 249

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

Climate

Mean T°

21,0°C

Annual rain

906mm

Warmest m°

29,5°C

Coldest m°

11,2°C

Elevation: 261 m on average (min 58 m, max 631 m)

Bioclimatic detailsExpert
Annual mean temp.
21,0°C
Annual rain
906mm
Warmest month
29,5°C
Coldest month
11,2°C
Mean alt.
261m
Min
58m
Max
631m
Std. dev.
128m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

6,0

Org. C

21,9g/kg

Clay

30,1%

Sand

51,7%

Silt

18,2%

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

Dominant lithology: ssGLiMaggregated to Uthungulu

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
29,2g/kg
Clay
27,5%
Sand
53,3%
Silt
19,2%
5–15 cm
pH H₂O
6,0
Org. C
21,8g/kg
Clay
28,8%
Sand
53,0%
Silt
18,3%
15–30 cm
pH H₂O
6,0
Org. C
14,7g/kg
Clay
34,0%
Sand
48,8%
Silt
17,2%

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

Land cover

Forest24.8%
Crops22.5%
Built-up0.8%
Bare soil1.0%
Other (grassland, water…)50.8%

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

Hydrology6 basins · 1 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

101,4km

Lake surface here

0,15km²

Basins crossed

6

Max stream order

5

Max drainage

10 051km²

Discharge in basins

27,9m³/s

Mean precip.

969mm/an

Mean T°

20,5°C

Moisture idx

-0,30

Mean runoff

295mm/an

Mean elev. (basins)

328m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,3nW

Built-up

85,1%

Pesticides

23,5kg/km²

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

Protected areas4

IUCN Not Reported · 4

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