Ontologia

Pays · TCD

Chad

BWhArid, desert, hot(67 %)

Species observed

3 105

Observations

69 421

Area

1 269 963km²

Ecological tissue

Sample of 32 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 Chad : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 3 types (connectance 7.0%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
39
Connectance
0.070
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

3 105 distinct species · 69 421 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

69 421 obs · 605 cellules
Obs. / cellule
≥ 819
244–818
68–243
20–67
< 20

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

26,7°C

Annual rain

300mm

Warmest m°

39,0°C

Coldest m°

12,5°C

Elevation: 519 m on average (min 165 m, max 3 293 m)

Bioclimatic detailsExpert
Annual mean temp.
26,7°C
Annual rain
300mm
Warmest month
39,0°C
Coldest month
12,5°C
Mean alt.
519m
Min
165m
Max
3 293m
Std. dev.
301m
Köppen-Geiger (dominant)
BWhArid, desert, hot(67 %)Arid

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

Soil & lithology

pH H₂O

7,6

Org. C

6,0g/kg

Clay

25,2%

Sand

47,1%

Silt

27,7%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,6
Org. C
7,4g/kg
Clay
24,0%
Sand
48,0%
Silt
28,0%
5–15 cm
pH H₂O
7,6
Org. C
6,0g/kg
Clay
24,8%
Sand
47,3%
Silt
27,9%
15–30 cm
pH H₂O
7,6
Org. C
4,5g/kg
Clay
26,9%
Sand
45,9%
Silt
27,2%

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

Land cover

Forest4.5%
Crops7.6%
Built-up0.0%
Bare soil52.1%
Other (grassland, water…)35.8%

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

Hydrology1885 basins · 50 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

18 489,5km

Lake surface here

10 673,31km²

Basins crossed

1 885

Max stream order

8

Max drainage

980 212km²

Discharge in basins

32 326,4m³/s

Mean precip.

321mm/an

Mean T°

27,0°C

Moisture idx

-0,85

Mean runoff

40mm/an

Mean elev. (basins)

517m

Watersheds crossing here

1876 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

3,6%

Pesticides

0,1kg/km²

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

Protected areas25

Country WDPA breakdown
IV113 747 km²(7)
Not Reported39 856 km²(4)
Not Applicable24 253 km²(2)
II4 740 km²(3)
IUCN IV · 11IUCN Not Reported · 6IUCN II · 5IUCN Not Applicable · 3📍 Point sites · 7

Aouk

IUCN Not Reported

Hunting reserve · 1963

28 560 km²

Complete list

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