Ontologia

Department · TCD

Batha Est

Chad

BWhArid, desert, hot(81 %)

Species observed

243

Observations

1 482

Area

28 798,1km²

Ecological tissue

Sample of 28 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 Batha Est : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 2 types (connectance 7.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
28
Connectance
0.074
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

243 distinct species · 1 482 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 482 obs · 146 cellules
Obs. / cellule
≥ 80
26–79
10–25
4–9
< 4

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

Climate

Mean T°

28,9°C

Annual rain

307mm

Warmest m°

40,6°C

Coldest m°

15,8°C

Elevation: 382 m on average (min 343 m, max 487 m)

Bioclimatic detailsExpert
Annual mean temp.
28,9°C
Annual rain
307mm
Warmest month
40,6°C
Coldest month
15,8°C
Mean alt.
382m
Min
343m
Max
487m
Std. dev.
22m
Köppen-Geiger (dominant)
BWhArid, desert, hot(81 %)Arid

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

Soil & lithology

pH H₂O

7,5

Org. C

5,1g/kg

Clay

33,1%

Sand

37,8%

Silt

29,2%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
5,7g/kg
Clay
32,4%
Sand
38,5%
Silt
29,0%
5–15 cm
pH H₂O
7,5
Org. C
5,1g/kg
Clay
32,8%
Sand
37,9%
Silt
29,3%
15–30 cm
pH H₂O
7,6
Org. C
4,5g/kg
Clay
34,0%
Sand
36,8%
Silt
29,2%

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

Land cover

Forest2.2%
Crops20.0%
Built-up0.0%
Bare soil8.1%
Other (grassland, water…)69.7%

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

Hydrology80 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

367,9km

Basins crossed

80

Max stream order

6

Max drainage

47 401km²

Discharge in basins

117,2m³/s

Mean precip.

332mm/an

Mean T°

29,7°C

Moisture idx

-0,85

Mean runoff

12mm/an

Mean elev. (basins)

392m

Watersheds crossing here

71 more basins

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 areas1

IUCN IV · 1

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

Sub-administrations7