Ontologia

Commune · TCD

Bere-Tchad

Chad

AwTropical, savannah(100 %)

Species observed

48

Observations

68

Area

394,7km²

Ecological tissue

Sample of 12 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 Bere-Tchad : 11 espèces reliées par 9 interactions GloBI sur 2 types (connectance 13.6%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
12
Interactions affichées
9
Connectance
0.136
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

48 distinct species · 68 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

68 obs · 4 cellules
Obs. / cellule
≥ 45
45–44
21–44
21–20
< 21

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

Climate

Mean T°

27,7°C

Annual rain

961mm

Warmest m°

39,1°C

Coldest m°

17,9°C

Elevation: 358 m on average (min 351 m, max 373 m)

Bioclimatic detailsExpert
Annual mean temp.
27,7°C
Annual rain
961mm
Warmest month
39,1°C
Coldest month
17,9°C
Mean alt.
358m
Min
351m
Max
373m
Std. dev.
4m
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

6,3

Org. C

9,5g/kg

Clay

24,9%

Sand

49,2%

Silt

25,9%

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

Dominant lithology: suGLiMaggregated to Béré

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,3
Org. C
12,6g/kg
Clay
22,9%
Sand
50,8%
Silt
26,3%
5–15 cm
pH H₂O
6,3
Org. C
10,4g/kg
Clay
23,0%
Sand
50,8%
Silt
26,2%
15–30 cm
pH H₂O
6,2
Org. C
5,6g/kg
Clay
28,9%
Sand
46,0%
Silt
25,1%

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

Land cover

Forest4.5%
Crops38.1%
Built-up0.7%
Bare soil1.6%
Other (grassland, water…)55.2%

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

Hydrology2 basins · 1 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

38,1km

Lake surface here

0,26km²

Basins crossed

2

Max stream order

5

Max drainage

58 634km²

Discharge in basins

41,4m³/s

Mean precip.

980mm/an

Mean T°

27,6°C

Moisture idx

-0,52

Mean runoff

496mm/an

Mean elev. (basins)

373m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Built-up

64,7%

Pesticides

0,2kg/km²

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