Department · TCD
Dagana
Chad
Species observed
195
Observations
886
Area
8 416km²
Ecological tissue
Sample of 6 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 Dagana : 5 espèces reliées par 5 interactions GloBI sur 2 types (connectance 23.8%, filtre Serrano α=0.2). 2 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
195 distinct species · 886 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
28,8°C
Annual rain
376mm
Warmest m°
41,0°C
Coldest m°
15,6°C
Elevation: 287 m on average (min 280 m, max 294 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
7,4
Org. C
6,1g/kg
Clay
32,4%
Sand
45,8%
Silt
21,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
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)
Hydrology29 basins · 39 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
198,9km
Lake surface here
101,15km²
Basins crossed
29
Max stream order
5
Max drainage
17 928km²
Discharge in basins
7,8m³/s
Mean precip.
375mm/an
Mean T°
29,1°C
Moisture idx
-0,83
Mean runoff
23mm/an
Mean elev. (basins)
291m
Watersheds crossing here
- Bassin de Bahr el Ghazalsub-area1 336 km²overlap920.12 km²11%
- Basin #98730sub-area755,1 km²overlap752.26 km²9%
- Bassin de Malouisub-area1 348,5 km²overlap690.77 km²8%
- Basin #02020sub-area1 550,1 km²overlap654.95 km²8%
- Basin #02010sub-area621,1 km²overlap572.69 km²7%
- Bassin de Bahr el-Ghazalsub-area3 077,4 km²overlap540.71 km²6%
- Bassin de Irédipsub-area2 417,3 km²overlap518.52 km²6%
- Bassin de Bahr el Ghazalsub-area445,1 km²overlap443.45 km²5%
- Basin #99950sub-area444,9 km²overlap443.23 km²5%
20 more basinssorted by overlap
- Basin #95550sub-area873 km²overlap384.83 km²5%
- Basin #98460sub-area320,2 km²overlap307.26 km²4%
- Bassin de Bahr el Ghazalsub-area304,2 km²overlap303.08 km²4%
- Basin #01740sub-area324,8 km²overlap267.70 km²3%
- Bassin de Bahr el Ghazalsub-area721,4 km²overlap209.68 km²2%
- Basin #99960sub-area203,9 km²overlap203.15 km²2%
- Basin #88520sub-area239,2 km²overlap190.98 km²2%
- Bassin de Bahr el Ghazalsub-area281,5 km²overlap189.84 km²2%
- Bassin de Bahr el Ghazalsub-area138,9 km²overlap138.40 km²2%
- Bassin de Malouisub-area136,5 km²overlap136.00 km²2%
- Bassin de Bahr Liniasub-area1 772,1 km²overlap100.20 km²1%
- Bassin de Malouisub-area98,7 km²overlap98.37 km²1%
- Bassin de Malouisub-area194,1 km²overlap98.28 km²1%
- Basin #13530sub-area1 507,7 km²overlap76.86 km²1%
- Basin #87020sub-area271 km²overlap56.00 km²1%
- Basin #88740sub-area161 km²overlap46.44 km²1%
- Basin #86080sub-area156,5 km²overlap31.47 km²0%
- Bassin de Bahr el Ghazalsub-area287,7 km²overlap20.31 km²0%
- Basin #17550sub-area156,9 km²overlap15.25 km²0%
- Basin #99510sub-area5,2 km²overlap5.18 km²0%
Lakes (39, top by area)
- Chadarea18 751,5 km²avg depth0.1 m
- Lake #15777area40,8 km²avg depth5.7 m
- Lake #79322area5,8 km²avg depth2.7 m
- Lake #79258area3,5 km²avg depth3.3 m
- Lake #79251area2,7 km²avg depth3.3 m
- Lake #79317area2,5 km²avg depth3.0 m
- Lake #79295area2,2 km²avg depth2.6 m
- Lake #79355area2,1 km²avg depth2.1 m
- Lake #79343area1,8 km²avg depth1.7 m
30 more lakes
- Lake #79283area1,6 km²avg depth2.9 m
- Lake #79340area1,4 km²avg depth1.3 m
- Lake #79300area1,2 km²avg depth3.7 m
- Lac 1399101area1 km²avg depth3.0 m
- Lac 1399358area0,9 km²avg depth1.1 m
- Lac 1399289area0,7 km²avg depth2.5 m
- Lac 1398964area0,7 km²avg depth2.3 m
- Lac 1399022area0,6 km²avg depth2.6 m
- Lac 1398925area0,5 km²avg depth2.7 m
- Lac 1398890area0,4 km²avg depth3.1 m
- Lac 1398968area0,3 km²avg depth2.6 m
- Lac 1398821area0,3 km²avg depth2.8 m
- Lac 1399439area0,3 km²avg depth1.7 m
- Lac 1399237area0,3 km²avg depth1.5 m
- Lac 1399192area0,3 km²avg depth1.7 m
- Lac 1399225area0,3 km²avg depth1.5 m
- Lac 1398998area0,3 km²avg depth2.7 m
- Lac 1399421area0,3 km²avg depth1.5 m
- Lac 1399202area0,3 km²avg depth1.8 m
- Lac 1399218area0,3 km²avg depth1.7 m
- Lac 1399026area0,3 km²avg depth3.3 m
- Lac 1399096area0,2 km²avg depth2.2 m
- Lac 1399382area0,2 km²avg depth1.6 m
- Lac 1399195area0,2 km²avg depth1.4 m
- Lac 1399410area0,2 km²avg depth1.2 m
- Lac 1398917area0,2 km²avg depth1.9 m
- Lac 1399246area0,2 km²avg depth1.3 m
- Lac 1398830area0,1 km²avg depth2.6 m
- Lac 1399395area0,1 km²avg depth1.0 m
- Lac 1399215area0,1 km²avg depth1.6 m
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
12,4%
Pesticides
0,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)