Ontologia

Department · TCD

Barh Azoum

Chad

AwTropical, savannah(67 %)

Species observed

624

Observations

7 086

Area

26 721,5km²

Ecological tissue

Sample of 30 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 Barh Azoum : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 3 types (connectance 8.0%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
37
Connectance
0.080
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

624 distinct species · 7 086 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 086 obs · 127 cellules
Obs. / cellule
≥ 1 283
92–1 282
18–91
7–17
< 7

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

752mm

Warmest m°

39,4°C

Coldest m°

18,4°C

Elevation: 434 m on average (min 392 m, max 678 m)

Bioclimatic detailsExpert
Annual mean temp.
27,8°C
Annual rain
752mm
Warmest month
39,4°C
Coldest month
18,4°C
Mean alt.
434m
Min
392m
Max
678m
Std. dev.
25m
Köppen-Geiger (dominant)
AwTropical, savannah(67 %)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

8,9g/kg

Clay

33,3%

Sand

34,3%

Silt

32,4%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,4
Org. C
11,4g/kg
Clay
31,4%
Sand
35,5%
Silt
33,1%
5–15 cm
pH H₂O
6,4
Org. C
8,9g/kg
Clay
32,0%
Sand
35,1%
Silt
32,9%
15–30 cm
pH H₂O
6,4
Org. C
6,3g/kg
Clay
36,5%
Sand
32,2%
Silt
31,2%

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

Land cover

Forest15.2%
Crops4.2%
Built-up0.0%
Bare soil0.4%
Other (grassland, water…)80.2%

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

Hydrology57 basins · 2 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

483,4km

Lake surface here

0,72km²

Basins crossed

57

Max stream order

7

Max drainage

134 744km²

Discharge in basins

506,4m³/s

Mean precip.

835mm/an

Mean T°

27,6°C

Moisture idx

-0,61

Mean runoff

30mm/an

Mean elev. (basins)

437m

Watersheds crossing here

48 more basins

Lakes (2, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

1,5%

Pesticides

0,0kg/km²

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

Protected areas3

IUCN Not Reported · 1IUCN IV · 1IUCN II · 1📍 Point sites · 1

Aouk

IUCN Not Reported

Hunting reserve · 1963

28 560 km²

Zakouma

IUCN II

National Park · 1963

3 043 km²

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

Sub-administrations8