Ontologia

Commune · TCD

Kera

Chad

AwTropical, savannah(94 %)

Species observed

93

Observations

185

Area

465,1km²

Ecological tissue

Sample of 8 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 Kera : 6 espèces reliées par 7 interactions GloBI sur 3 types (connectance 25.0%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
8
Interactions affichées
7
Connectance
0.250
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

93 distinct species · 185 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

185 obs · 4 cellules
Obs. / cellule
≥ 153
153–152
24–152
24–23
< 24

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

Climate

Mean T°

27,7°C

Annual rain

858mm

Warmest m°

39,4°C

Coldest m°

16,9°C

Elevation: 348 m on average (min 319 m, max 397 m)

Bioclimatic detailsExpert
Annual mean temp.
27,7°C
Annual rain
858mm
Warmest month
39,4°C
Coldest month
16,9°C
Mean alt.
348m
Min
319m
Max
397m
Std. dev.
20m
Köppen-Geiger (dominant)
AwTropical, savannah(94 %)Tropical

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

Soil & lithology

pH H₂O

6,5

Org. C

8,4g/kg

Clay

22,2%

Sand

57,2%

Silt

20,6%

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

Dominant lithology: ssGLiMaggregated to Mont Illi

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,5
Org. C
11,5g/kg
Clay
20,2%
Sand
58,8%
Silt
21,0%
5–15 cm
pH H₂O
6,5
Org. C
8,6g/kg
Clay
21,2%
Sand
58,1%
Silt
20,7%
15–30 cm
pH H₂O
6,5
Org. C
5,0g/kg
Clay
25,3%
Sand
54,7%
Silt
20,0%

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

Land cover

Forest6.8%
Crops39.8%
Built-up0.3%
Bare soil2.0%
Other (grassland, water…)51.1%

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

Hydrology3 basins · 1 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

70,2km

Lake surface here

9,00km²

Basins crossed

3

Max stream order

5

Max drainage

13 319km²

Discharge in basins

16,6m³/s

Mean precip.

905mm/an

Mean T°

27,8°C

Moisture idx

-0,54

Mean runoff

222mm/an

Mean elev. (basins)

372m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

30,9%

Pesticides

0,2kg/km²

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