Ontologia

Commune · TCD

Ba-Illi

Chad

AwTropical, savannah(57 %)

Species observed

174

Observations

476

Area

3 569km²

Ecological tissue

Sample of 3 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 Ba-Illi : 2 espèces reliées par 3 interactions GloBI sur 2 types (connectance 50.0%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
4
Interactions affichées
3
Connectance
0.500
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

174 distinct species · 476 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

476 obs · 26 cellules
Obs. / cellule
≥ 105
54–104
17–53
10–16
< 10

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

Climate

Mean T°

28,4°C

Annual rain

831mm

Warmest m°

40,2°C

Coldest m°

18,3°C

Elevation: 333 m on average (min 317 m, max 342 m)

Bioclimatic detailsExpert
Annual mean temp.
28,4°C
Annual rain
831mm
Warmest month
40,2°C
Coldest month
18,3°C
Mean alt.
333m
Min
317m
Max
342m
Std. dev.
4m
Köppen-Geiger (dominant)
AwTropical, savannah(57 %)Tropical

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

Soil & lithology

pH H₂O

6,2

Org. C

8,6g/kg

Clay

31,2%

Sand

36,8%

Silt

32,0%

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

Dominant lithology: suGLiMaggregated to Loug Chari

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
11,0g/kg
Clay
29,9%
Sand
37,5%
Silt
32,6%
5–15 cm
pH H₂O
6,3
Org. C
9,2g/kg
Clay
29,8%
Sand
37,7%
Silt
32,4%
15–30 cm
pH H₂O
6,2
Org. C
5,8g/kg
Clay
33,9%
Sand
35,1%
Silt
31,0%

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

Land cover

Forest10.7%
Crops19.6%
Built-up0.1%
Bare soil0.2%
Other (grassland, water…)69.4%

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

Hydrology23 basins · 2 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

253,2km

Lake surface here

0,36km²

Basins crossed

23

Max stream order

8

Max drainage

496 666km²

Discharge in basins

1 547,0m³/s

Mean precip.

874mm/an

Mean T°

28,1°C

Moisture idx

-0,58

Mean runoff

183mm/an

Mean elev. (basins)

335m

Watersheds crossing here

14 more basins

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

Human pressure

Pop. density

0hab/km²

Night light

0,4nW

Built-up

8,9%

Pesticides

0,1kg/km²

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