Ontologia

Region · tcd

Ouaddaï

Chad

BShArid, steppe, hot(75 %)

Species observed

466

Observations

3 528

Area

29 754,7km²

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 Ouaddaï : 25 espèces reliées par 30 interactions GloBI sur 3 types (connectance 6.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
30
Connectance
0.060
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

466 distinct species · 3 528 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 528 obs · 169 cellules
Obs. / cellule
≥ 195
51–194
22–50
4–21
< 4

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

Climate

Mean T°

27,4°C

Annual rain

438mm

Warmest m°

38,9°C

Coldest m°

15,7°C

Elevation: 613 m on average (min 400 m, max 1 016 m)

Bioclimatic detailsExpert
Annual mean temp.
27,4°C
Annual rain
438mm
Warmest month
38,9°C
Coldest month
15,7°C
Mean alt.
613m
Min
400m
Max
1 016m
Std. dev.
139m
Köppen-Geiger (dominant)
BShArid, steppe, hot(75 %)Arid

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

Soil & lithology

pH H₂O

7,3

Org. C

6,8g/kg

Clay

28,0%

Sand

42,8%

Silt

29,2%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,2
Org. C
7,4g/kg
Clay
26,9%
Sand
43,8%
Silt
29,3%
5–15 cm
pH H₂O
7,2
Org. C
6,8g/kg
Clay
27,7%
Sand
42,9%
Silt
29,4%
15–30 cm
pH H₂O
7,3
Org. C
6,1g/kg
Clay
29,5%
Sand
41,7%
Silt
28,8%

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

Land cover

Forest4.2%
Crops19.5%
Built-up0.1%
Bare soil4.2%
Other (grassland, water…)72.0%

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

Hydrology76 basins · 3 lakes · 40 rivers

Hydrology metrics for this exact territory

Stream length here

1 194,2km

Lake surface here

0,72km²

Basins crossed

76

Max stream order

6

Max drainage

38 470km²

Discharge in basins

63,7m³/s

Mean precip.

443mm/an

Mean T°

27,9°C

Moisture idx

-0,80

Mean runoff

21mm/an

Mean elev. (basins)

619m

Watersheds crossing here

67 more basins

Lakes (3, top by area)

Rivers / streams (40, ord ≥ 4)

28 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

8,9%

Pesticides

0,1kg/km²

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

Sub-administrations3