Ontologia

Department · TCD

Ouara

Chad

BShArid, steppe, hot(59 %)

Species observed

360

Observations

2 303

Area

17 803km²

Ecological tissue

Sample of 23 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 Ouara : 17 espèces reliées par 24 interactions GloBI sur 3 types (connectance 8.7%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
24
Connectance
0.087
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

360 distinct species · 2 303 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 303 obs · 117 cellules
Obs. / cellule
≥ 145
51–144
24–50
5–23
< 5

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

Climate

Mean T°

28,0°C

Annual rain

403mm

Warmest m°

39,5°C

Coldest m°

16,1°C

Elevation: 546 m on average (min 400 m, max 868 m)

Bioclimatic detailsExpert
Annual mean temp.
28,0°C
Annual rain
403mm
Warmest month
39,5°C
Coldest month
16,1°C
Mean alt.
546m
Min
400m
Max
868m
Std. dev.
91m
Köppen-Geiger (dominant)
BShArid, steppe, hot(59 %)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

6,4g/kg

Clay

29,3%

Sand

40,4%

Silt

30,4%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,3
Org. C
6,9g/kg
Clay
28,3%
Sand
41,3%
Silt
30,4%
5–15 cm
pH H₂O
7,3
Org. C
6,4g/kg
Clay
29,0%
Sand
40,5%
Silt
30,6%
15–30 cm
pH H₂O
7,4
Org. C
5,8g/kg
Clay
30,5%
Sand
39,3%
Silt
30,1%

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

Land cover

Forest3.8%
Crops19.0%
Built-up0.1%
Bare soil4.9%
Other (grassland, water…)72.2%

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

Hydrology42 basins · 1 lakes · 13 rivers

Hydrology metrics for this exact territory

Stream length here

451,4km

Lake surface here

0,28km²

Basins crossed

42

Max stream order

5

Max drainage

21 288km²

Discharge in basins

27,4m³/s

Mean precip.

411mm/an

Mean T°

28,6°C

Moisture idx

-0,81

Mean runoff

20mm/an

Mean elev. (basins)

558m

Watersheds crossing here

33 more basins

Lakes (1, 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

9,9%

Pesticides

0,1kg/km²

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

Sub-administrations7