Nana-Barya
IUCN IVFaunal Reserve · 1953
2 314 km²
Department · TCD
Barh Sara
Chad
AwTropical, savannah(100 %)
Species observed
143
Observations
566
Area
8 535,6km²
Ecological tissue
Sample of 8 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 Sara : 7 espèces reliées par 7 interactions GloBI sur 2 types (connectance 25.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
8
Interactions affichées
7
Connectance
0.250
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
143 distinct species · 566 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,4°C
Annual rain
1 115mm
Warmest m°
37,9°C
Coldest m°
19,5°C
Elevation: 389 m on average (min 364 m, max 451 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
27,4°C
Annual rain
1 115mm
Warmest month
37,9°C
Coldest month
19,5°C
Mean alt.
389m
Min
364m
Max
451m
Std. dev.
14m
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
12,6g/kg
Clay
27,1%
Sand
48,7%
Silt
24,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,2
Org. C
18,6g/kg
Clay
25,8%
Sand
49,8%
Silt
24,4%
5–15 cm
pH H₂O
6,2
Org. C
12,6g/kg
Clay
26,3%
Sand
49,4%
Silt
24,2%
15–30 cm
pH H₂O
6,1
Org. C
6,5g/kg
Clay
29,3%
Sand
46,7%
Silt
24,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest29.4%
Crops12.8%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)57.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology17 basins · 9 lakes · 14 rivers
Hydrology metrics for this exact territory
Stream length here
660,6km
Lake surface here
2,50km²
Basins crossed
17
Max stream order
6
Max drainage
83 237km²
Discharge in basins
695,3m³/s
Mean precip.
1 089mm/an
Mean T°
26,8°C
Moisture idx
-0,47
Mean runoff
142mm/an
Mean elev. (basins)
398m
Watersheds crossing here
- Bassin de Bahr Sara بحر سارةsub-area2 656,3 km²overlap2265.83 km²27%
- Bassin de Moulasub-area1 734,5 km²overlap1534.96 km²18%
- Bassin de Mandoulsub-area2 461,3 km²overlap1281.53 km²15%
- Bassin de Narsub-area1 178,1 km²overlap1171.97 km²14%
- Bassin de Mandoulsub-area678,6 km²overlap672.31 km²8%
- Bassin de Nana Baryasub-area1 135,8 km²overlap669.61 km²8%
- Bassin de Mandoulsub-area1 170,6 km²overlap293.70 km²3%
- Bassin de Mandoulsub-area954,2 km²overlap280.91 km²3%
- Bassin de Dousub-area1 037,6 km²overlap178.83 km²2%
8 more basinssorted by overlap
- Bassin de Mandoulsub-area473,1 km²overlap80.30 km²1%
- Bassin de Bahr Ko بحر كوsub-area380,2 km²overlap31.96 km²0%
- Bassin de Bahr Sara بحر سارةsub-area1 080,3 km²overlap31.85 km²0%
- Bassin de Mandoulsub-area33,6 km²overlap14.66 km²0%
- Bassin de Ouhamsub-area16,9 km²overlap10.50 km²0%
- Basin #00790sub-area321,9 km²overlap8.87 km²0%
- Bassin de Mandoulsub-area497,6 km²overlap7.69 km²0%
- Bassin de Petit Mandoulsub-area146,5 km²overlap0.14 km²0%
Lakes (9, top by area)
- Lac 1403576area0,6 km²avg depth1.3 m
- Lac 1404450area0,4 km²avg depth1.7 m
- Lac 1403400area0,4 km²avg depth2.2 m
- Lac 1403615area0,3 km²avg depth1.6 m
- Lac 1403564area0,3 km²avg depth1.2 m
- Lac 1403916area0,2 km²avg depth1.8 m
- Lac 1404370area0,1 km²avg depth2.1 m
- Lac 1403585area0,1 km²avg depth1.2 m
- Lac 1404286area0,1 km²avg depth2.1 m
Rivers / streams (14, ord ≥ 4)
- Bahr Sara بحر سارةord 6len here233.03 km56%total417 km
- Oulord 3len here97.86 km100%total98 km
- Mandoulord 5len here94.77 km30%total318 km
- Nana Baryaord 5len here73.60 km11%total681 km
- Moulaord 4len here57.98 km86%total68 km
- Narord 3len here30.69 km100%total31 km
- Dingaord 2len here26.95 km100%total27 km
- Dinléord 2len here9.54 km100%total10 km
- Bisaord 2len here8.88 km33%total27 km
- Tougoord 2len here8.05 km23%total34 km
- Gabouaord 2len here7.47 km100%total7 km
- Koungoord 1len here5.88 km100%total6 km
2 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
14,6%
Pesticides
0,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN IV · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN