Region · tcd
Logone Occidental
Chad
Species observed
202
Observations
690
Area
8 807,2km²
Ecological tissue
Sample of 26 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 Logone Occidental : 23 espèces reliées par 22 interactions GloBI sur 3 types (connectance 6.8%, 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
202 distinct species · 690 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,0°C
Annual rain
1 043mm
Warmest m°
37,8°C
Coldest m°
18,1°C
Elevation: 442 m on average (min 359 m, max 548 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
10,8g/kg
Clay
24,3%
Sand
50,2%
Silt
25,4%
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)
Hydrology24 basins · 4 lakes · 42 rivers
Hydrology metrics for this exact territory
Stream length here
784,3km
Lake surface here
1,79km²
Basins crossed
24
Max stream order
6
Max drainage
58 634km²
Discharge in basins
719,2m³/s
Mean precip.
1 077mm/an
Mean T°
27,0°C
Moisture idx
-0,46
Mean runoff
429mm/an
Mean elev. (basins)
433m
Watersheds crossing here
- Bassin de Logonesub-area2 668,1 km²overlap1340.76 km²15%
- Bassin de Mayo Boulagiesub-area1 120,6 km²overlap1115.97 km²13%
- Bassin de Guénisub-area915,2 km²overlap877.19 km²10%
- Bassin de Logonesub-area2 631,7 km²overlap787.33 km²9%
- Bassin de Koubanla Mayosub-area498,3 km²overlap492.90 km²6%
- Basin #69430sub-area475,5 km²overlap473.55 km²5%
- Bassin de Bidasub-area450,9 km²overlap443.71 km²5%
- Bassin de Mbaguisub-area845,8 km²overlap441.54 km²5%
- Basin #69300sub-area426,2 km²overlap418.60 km²5%
15 more basinssorted by overlap
- Bassin de Tandjilésub-area1 100,4 km²overlap362.68 km²4%
- Bassin de Banyisub-area370,4 km²overlap354.40 km²4%
- Bassin de Missisub-area768 km²overlap353.62 km²4%
- Bassin de Logonesub-area674,3 km²overlap239.49 km²3%
- Bassin de Tandjilésub-area238,1 km²overlap237.16 km²3%
- Bassin de Tandjilésub-area1 947,1 km²overlap201.22 km²2%
- Bassin de Kou Bassasub-area502,6 km²overlap193.65 km²2%
- Bassin de Nyasub-area341,6 km²overlap122.28 km²1%
- Bassin de Tandjilésub-area119,7 km²overlap119.16 km²1%
- Bassin de Banangourousub-area343 km²overlap89.56 km²1%
- Bassin de Kabiasub-area543,6 km²overlap61.96 km²1%
- Bassin de Laosub-area238,2 km²overlap35.73 km²0%
- Bassin de Kemsousub-area1 387,6 km²overlap23.97 km²0%
- Bassin de Mbaguisub-area58,8 km²overlap17.86 km²0%
- Bassin de Mbaguisub-area237,7 km²overlap2.93 km²0%
Lakes (4, top by area)
Rivers / streams (42, ord ≥ 4)
- Tandjiléord 5len here73.28 km19%total376 km
- Mayo Boulagieord 4len here57.44 km100%total58 km
- Logoneord 6len here53.38 km4%total1222 km
- Mbéréord 6len here50.13 km9%total559 km
- Kaneord 6len here48.65 km86%total57 km
- Bogoumord 5len here45.85 km100%total46 km
- Koubanla Mayoord 2len here43.57 km95%total46 km
- Banyiord 3len here38.25 km89%total43 km
- Mbaguiord 5len here34.03 km39%total87 km
- Man Bagéord 3len here32.70 km82%total40 km
- Kouord 5len here29.35 km43%total69 km
- Bidaord 6len here23.19 km82%total28 km
30 more river segmentssorted by Strahler order + length
- Zoord 3len here21.48 km100%total22 km
- Missiord 3len here20.16 km92%total22 km
- Kou Baoord 2len here20.09 km89%total23 km
- Lonnkaidanord 2len here17.72 km100%total18 km
- Béniguéord 2len here16.79 km100%total17 km
- Singord 2len here13.51 km100%total14 km
- Lougouiord 3len here12.21 km100%total12 km
- Nyaord 5len here11.92 km5%total233 km
- Nangaradjeord 2len here10.66 km100%total11 km
- Lao Mdoumord 1len here9.78 km90%total11 km
- Mbigouéord 3len here9.57 km100%total10 km
- Gakiord 1len here8.37 km100%total8 km
- Bann Dzizeord 1len here8.37 km100%total8 km
- Banadjéord 4len here8.13 km100%total8 km
- Miairord 2len here7.85 km100%total8 km
- Goskéléord 2len here7.59 km100%total8 km
- Baguéord 2len here7.47 km100%total7 km
- Banlaord 2len here7.45 km100%total7 km
- Poum Poumord 3len here6.71 km100%total7 km
- Tagoord 3len here5.54 km100%total6 km
- Missouord 3len here4.89 km100%total5 km
- Kadi Semdjéord 1len here4.54 km100%total5 km
- Kouaord 1len here3.64 km100%total4 km
- Gouariord 1len here3.01 km100%total3 km
- Kounord 1len here2.86 km51%total6 km
- Lakir Mayoord 1len here1.79 km34%total5 km
- Peul Peulord 1len here1.63 km100%total2 km
- Manannraord 2len here0.60 km5%total12 km
- Ndiabouord 1len here0.09 km2%total5 km
- Nguélabitaord 3len here0.04 km0%total33 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,0nW
Built-up
39,1%
Pesticides
0,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)