Ontologia

Department · TCD

Barh Köh

Chad

AwTropical, savannah(100 %)

Species observed

365

Observations

1 221

Area

18 297,6km²

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 Barh Köh : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
35
Connectance
0.071
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

365 distinct species · 1 221 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 221 obs · 103 cellules
Obs. / cellule
≥ 145
24–144
6–23
3–5
< 3

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

Climate

Mean T°

27,8°C

Annual rain

967mm

Warmest m°

38,9°C

Coldest m°

18,7°C

Elevation: 367 m on average (min 342 m, max 516 m)

Bioclimatic detailsExpert
Annual mean temp.
27,8°C
Annual rain
967mm
Warmest month
38,9°C
Coldest month
18,7°C
Mean alt.
367m
Min
342m
Max
516m
Std. dev.
16m
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

10,5g/kg

Clay

27,5%

Sand

41,4%

Silt

31,2%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,3
Org. C
15,0g/kg
Clay
24,7%
Sand
43,3%
Silt
31,9%
5–15 cm
pH H₂O
6,3
Org. C
10,5g/kg
Clay
26,0%
Sand
42,5%
Silt
31,6%
15–30 cm
pH H₂O
6,3
Org. C
6,1g/kg
Clay
31,7%
Sand
38,4%
Silt
29,9%

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

Land cover

Forest21.3%
Crops9.9%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)68.7%

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

Hydrology56 basins · 21 lakes · 38 rivers

Hydrology metrics for this exact territory

Stream length here

2 310,7km

Lake surface here

4,30km²

Basins crossed

56

Max stream order

8

Max drainage

473 418km²

Discharge in basins

4 895,3m³/s

Mean precip.

964mm/an

Mean T°

27,7°C

Moisture idx

-0,53

Mean runoff

151mm/an

Mean elev. (basins)

373m

Watersheds crossing here

47 more basins

Lakes (21, top by area)

12 more lakes

Rivers / streams (38, ord ≥ 4)

26 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

7,8%

Pesticides

0,0kg/km²

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

Protected areas5

IUCN IV · 2IUCN II · 2IUCN Not Reported · 1

Aouk

IUCN Not Reported

Hunting reserve · 1963

28 560 km²

Manda

IUCN II

National Park · 1969

951 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations9