Region · tcd
Tandjilé
Chad
Species observed
286
Observations
1 133
Area
17 531,6km²
Ecological tissue
Sample of 30 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).
Indicateurs du tissu écologique
Tissu écologique de Tandjilé : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 3 types (connectance 5.3%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
286 distinct species · 1 133 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,8°C
Annual rain
954mm
Warmest m°
39,2°C
Coldest m°
18,3°C
Elevation: 360 m on average (min 331 m, max 519 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
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
9,6g/kg
Clay
26,3%
Sand
44,5%
Silt
29,2%
Average over 0-30 cm. Per-depth details in expert panel.
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology41 basins · 13 lakes · 35 rivers
Hydrology metrics for this exact territory
Stream length here
1 387,5km
Lake surface here
2,03km²
Basins crossed
41
Max stream order
6
Max drainage
67 562km²
Discharge in basins
749,2m³/s
Mean precip.
961mm/an
Mean T°
27,7°C
Moisture idx
-0,53
Mean runoff
298mm/an
Mean elev. (basins)
363m
Watersheds crossing here
- Bassin de Goydésub-area1 819,1 km²overlap1810.33 km²10%
- Bassin de Tandjilésub-area1 947,1 km²overlap1725.56 km²10%
- Bassin de Logonesub-area2 631,7 km²overlap1620.30 km²9%
- Bassin de Ba-Illisub-area1 634,2 km²overlap1579.68 km²9%
- Bassin de Djiénesub-area1 398,1 km²overlap1370.22 km²8%
- Bassin de Padjouoksub-area1 300,2 km²overlap1294.87 km²7%
- Bassin de Klimdisub-area858,7 km²overlap854.76 km²5%
- Bassin de Tandjilésub-area1 100,4 km²overlap733.20 km²4%
- Bassin de Ba Illisub-area1 122,5 km²overlap522.24 km²3%
32 more basinssorted by overlap
- Bassin de Limgousub-area510,2 km²overlap500.50 km²3%
- Bassin de Kabiasub-area706,7 km²overlap472.15 km²3%
- Bassin de Krousub-area462,2 km²overlap435.56 km²2%
- Bassin de Ba Illisub-area1 739,5 km²overlap421.79 km²2%
- Basin #47300sub-area424,9 km²overlap400.49 km²2%
- Bassin de Limgousub-area347,5 km²overlap346.04 km²2%
- Bassin de Djiénesub-area341,8 km²overlap340.42 km²2%
- Basin #47130sub-area323,9 km²overlap322.60 km²2%
- Bassin de Lokasub-area994,7 km²overlap322.44 km²2%
- Basin #51470sub-area374,8 km²overlap287.57 km²2%
- Bassin de Ba Illisub-area418,5 km²overlap284.58 km²2%
- Bassin de Dimliksub-area1 494,6 km²overlap267.71 km²2%
- Bassin de Ba-Illisub-area772,3 km²overlap263.82 km²2%
- Bassin de Banangourousub-area343 km²overlap230.27 km²1%
- Bassin de Tchilelsub-area281,4 km²overlap216.03 km²1%
- Bassin de Ba-Illisub-area624,1 km²overlap136.41 km²1%
- Bassin de Ba Illisub-area134,6 km²overlap134.08 km²1%
- Bassin de Tchilelsub-area130,5 km²overlap123.18 km²1%
- Basin #51810sub-area106 km²overlap105.55 km²1%
- Bassin de Mayo Kayosub-area2 572,8 km²overlap72.87 km²0%
- Bassin de Limgousub-area63,8 km²overlap63.57 km²0%
- Bassin de Tchilelsub-area729,1 km²overlap48.74 km²0%
- Bassin de Ba Illisub-area413,1 km²overlap45.91 km²0%
- Bassin de Guénisub-area915,2 km²overlap34.21 km²0%
- Bassin de Pendésub-area1 248 km²overlap29.41 km²0%
- Bassin de Ba Illisub-area413,7 km²overlap27.43 km²0%
- Bassin de Koolsub-area522,3 km²overlap27.37 km²0%
- Bassin de Ba Illisub-area53,6 km²overlap26.48 km²0%
- Bassin de Ba Illisub-area73,9 km²overlap13.83 km²0%
- Bassin de Kabiasub-area543,6 km²overlap9.56 km²0%
- Bassin de Logonesub-area1 817 km²overlap7.82 km²0%
- Basin #48330sub-area333,3 km²overlap1.99 km²0%
Lakes (13, top by area)
- Lac Kabiaarea2,3 km²avg depth1.2 m
- Lac 1402280area0,7 km²avg depth1.7 m
- Lac 1403041area0,4 km²avg depth1.5 m
- Lac 1402990area0,3 km²avg depth1.9 m
- Lac 1403092area0,2 km²avg depth1.2 m
- Lac 1402942area0,2 km²avg depth2.1 m
- Lac 1402972area0,2 km²avg depth1.0 m
- Lac 1402988area0,2 km²avg depth1.1 m
- Lac 1402686area0,1 km²avg depth0.7 m
Rivers / streams (35, ord ≥ 4)
- Tandjiléord 5len here297.76 km79%total376 km
- Ba Illiord 6len here161.80 km27%total592 km
- Ba-Illiord 5len here147.86 km36%total415 km
- Logoneord 6len here134.18 km11%total1222 km
- Limgouord 5len here98.06 km100%total98 km
- Kabiaord 5len here81.46 km25%total330 km
- Padjouokord 3len here79.24 km100%total79 km
- Klimdiord 3len here62.30 km100%total62 km
- Tchilelord 4len here36.77 km72%total51 km
- Kouord 5len here27.03 km39%total69 km
- Goydéord 2len here26.90 km100%total27 km
- Silelord 3len here24.92 km100%total25 km
23 more river segmentssorted by Strahler order + length
- Seberrord 3len here23.60 km100%total24 km
- Dargoubiord 3len here21.46 km55%total39 km
- Marbaord 2len here19.56 km100%total20 km
- Krouord 1len here17.98 km100%total18 km
- Maniloord 4len here16.72 km53%total32 km
- Bakoumroord 3len here16.48 km100%total17 km
- Koudjikord 4len here11.07 km66%total17 km
- Kelléord 3len here9.89 km100%total10 km
- Banangourouord 3len here9.35 km100%total9 km
- Djiéneord 4len here8.93 km100%total9 km
- Dimlikord 3len here8.28 km8%total102 km
- Kaneord 6len here7.91 km14%total57 km
- Bakrabord 2len here7.16 km87%total8 km
- Man Bagéord 3len here6.84 km17%total40 km
- Niaogouord 2len here5.14 km100%total5 km
- Markibéord 3len here4.82 km100%total5 km
- Guéniord 4len here4.51 km100%total5 km
- Péouord 1len here4.30 km100%total4 km
- Tchiroord 2len here2.02 km100%total2 km
- Mendekord 3len here1.62 km12%total14 km
- Darlao Tchiréord 3len here1.30 km100%total1 km
- Kemgodoord 2len here0.18 km16%total1 km
- Pendéord 6len here0.06 km0%total482 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
22,0%
Pesticides
0,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)