Ontologia

Commune · TCD

Malboum/Hollom

Chad

AwTropical, savannah(84 %)

Species observed

96

Observations

189

Area

883,8km²

Ecological tissue

Sample of 1 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 Malboum/Hollom : 0 espèces reliées par 0 interaction GloBI sur 0 type (connectance 0.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
1
Interactions affichées
0
Connectance
0.0000
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

96 distinct species · 189 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

189 obs · 11 cellules
Obs. / cellule
≥ 85
34–84
12–33
10–11
< 10

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

Climate

Mean T°

27,9°C

Annual rain

845mm

Warmest m°

39,7°C

Coldest m°

17,3°C

Elevation: 332 m on average (min 321 m, max 341 m)

Bioclimatic detailsExpert
Annual mean temp.
27,9°C
Annual rain
845mm
Warmest month
39,7°C
Coldest month
17,3°C
Mean alt.
332m
Min
321m
Max
341m
Std. dev.
4m
Köppen-Geiger (dominant)
AwTropical, savannah(84 %)Tropical

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

Soil & lithology

pH H₂O

6,4

Org. C

8,2g/kg

Clay

22,4%

Sand

55,3%

Silt

22,3%

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
6,4
Org. C
11,4g/kg
Clay
20,3%
Sand
57,0%
Silt
22,7%
5–15 cm
pH H₂O
6,4
Org. C
8,4g/kg
Clay
21,4%
Sand
56,1%
Silt
22,5%
15–30 cm
pH H₂O
6,4
Org. C
4,7g/kg
Clay
25,4%
Sand
53,0%
Silt
21,7%

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

Land cover

Forest6.0%
Crops38.2%
Built-up0.2%
Bare soil1.3%
Other (grassland, water…)54.2%

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

Hydrology6 basins · 2 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

100,5km

Lake surface here

10,16km²

Basins crossed

6

Max stream order

5

Max drainage

67 562km²

Discharge in basins

51,5m³/s

Mean precip.

848mm/an

Mean T°

27,9°C

Moisture idx

-0,58

Mean runoff

246mm/an

Mean elev. (basins)

344m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

1hab/km²

Built-up

22,1%

Pesticides

0,3kg/km²

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