Ontologia

Region · tcd

Logone Oriental

Chad

AwTropical, savannah(100 %)

Species observed

428

Observations

2 942

Area

23 718km²

Ecological tissue

Sample of 20 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 Logone Oriental : 17 espèces reliées par 17 interactions GloBI sur 4 types (connectance 8.9%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
17
Connectance
0.089
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

428 distinct species · 2 942 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 942 obs · 229 cellules
Obs. / cellule
≥ 61
27–60
18–26
11–17
< 11

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

Climate

Mean T°

27,0°C

Annual rain

1 139mm

Warmest m°

37,7°C

Coldest m°

18,6°C

Elevation: 460 m on average (min 363 m, max 986 m)

Bioclimatic detailsExpert
Annual mean temp.
27,0°C
Annual rain
1 139mm
Warmest month
37,7°C
Coldest month
18,6°C
Mean alt.
460m
Min
363m
Max
986m
Std. dev.
71m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical

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

Soil & lithology

pH H₂O

6,2

Org. C

12,5g/kg

Clay

21,1%

Sand

56,6%

Silt

22,3%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
18,5g/kg
Clay
19,4%
Sand
57,9%
Silt
22,7%
5–15 cm
pH H₂O
6,2
Org. C
12,3g/kg
Clay
20,3%
Sand
57,3%
Silt
22,4%
15–30 cm
pH H₂O
6,1
Org. C
6,7g/kg
Clay
23,6%
Sand
54,5%
Silt
21,8%

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

Land cover

Forest21.4%
Crops19.5%
Built-up0.2%
Bare soil0.3%
Other (grassland, water…)58.6%

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

Hydrology53 basins · 30 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

2 741,6km

Lake surface here

14,15km²

Basins crossed

53

Max stream order

6

Max drainage

58 634km²

Discharge in basins

1 991,9m³/s

Mean precip.

1 148mm/an

Mean T°

26,7°C

Moisture idx

-0,42

Mean runoff

303mm/an

Mean elev. (basins)

465m

Watersheds crossing here

44 more basins

Lakes (30, top by area)

21 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

0,1nW

Built-up

18,4%

Pesticides

0,2kg/km²

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

Sub-administrations4