Ontologia

Commune · TCD

Bessara

Chad

AwTropical, savannah(100 %)

Species observed

20

Observations

20

Area

129,9km²

Ecological tissue

Sample of 5 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 Bessara : 5 espèces reliées par 4 interactions GloBI sur 1 type (connectance 40.0%, filtre Serrano α=0.2).

Espèces affichées
5
Interactions affichées
4
Connectance
0.400
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

20 distinct species · 20 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

20 obs · 2 cellules
Obs. / cellule
≥ 19
19–18
19–18
19–18
< 19

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

Climate

Mean T°

27,5°C

Annual rain

1 133mm

Warmest m°

38,2°C

Coldest m°

19,7°C

Elevation: 387 m on average (min 380 m, max 391 m)

Bioclimatic detailsExpert
Annual mean temp.
27,5°C
Annual rain
1 133mm
Warmest month
38,2°C
Coldest month
19,7°C
Mean alt.
387m
Min
380m
Max
391m
Std. dev.
2m
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

6,1

Org. C

11,6g/kg

Clay

27,4%

Sand

49,3%

Silt

23,3%

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

Dominant lithology: ssGLiMaggregated to Barh Sara

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
16,8g/kg
Clay
26,4%
Sand
50,1%
Silt
23,4%
5–15 cm
pH H₂O
6,1
Org. C
11,7g/kg
Clay
27,0%
Sand
49,7%
Silt
23,3%
15–30 cm
pH H₂O
6,1
Org. C
6,2g/kg
Clay
28,8%
Sand
48,0%
Silt
23,2%

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

Land cover

Forest21.7%
Crops18.1%
Built-up0.1%
Bare soil0.0%
Other (grassland, water…)60.1%

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

Hydrology3 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

0,5km

Basins crossed

3

Max stream order

1

Max drainage

69 990km²

Discharge in basins

10,7m³/s

Mean precip.

1 054mm/an

Mean T°

26,9°C

Moisture idx

-0,49

Mean runoff

143mm/an

Mean elev. (basins)

402m

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

Human pressure

Pop. density

0hab/km²

Built-up

11,9%

Pesticides

0,2kg/km²

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