Department · TCD
Sila
Chad
Species observed
114
Observations
305
Area
21 032,6km²
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 Sila : 5 espèces reliées par 4 interactions GloBI sur 1 type (connectance 26.7%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
114 distinct species · 305 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,1°C
Annual rain
664mm
Warmest m°
38,8°C
Coldest m°
16,9°C
Elevation: 579 m on average (min 475 m, max 978 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
6,8
Org. C
8,4g/kg
Clay
26,9%
Sand
48,5%
Silt
24,6%
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)
Hydrology51 basins · 1 lakes · 53 rivers
Hydrology metrics for this exact territory
Stream length here
1 336,7km
Lake surface here
1,01km²
Basins crossed
51
Max stream order
7
Max drainage
92 682km²
Discharge in basins
334,4m³/s
Mean precip.
632mm/an
Mean T°
26,7°C
Moisture idx
-0,71
Mean runoff
28mm/an
Mean elev. (basins)
579m
Watersheds crossing here
- Basin #42090sub-area3 481,3 km²overlap3467.86 km²16%
- Bassin de وادي أظوم Bahr Azoumsub-area1 521,5 km²overlap1486.37 km²7%
- Bassin de wadi Ngurngursub-area2 295,5 km²overlap1283.08 km²6%
- Bassin de Batasub-area1 971,5 km²overlap1179.69 km²6%
- Bassin de Ouadi Laweytsub-area1 140,4 km²overlap1136.01 km²5%
- Bassin de Ouadi Morosub-area1 481,9 km²overlap957.10 km²5%
- Bassin de Eda Sowartaisub-area965,4 km²overlap706.98 km²3%
- Basin #66360sub-area1 065,1 km²overlap691.00 km²3%
- Bassin de Ouadi Sanioumasub-area1 027,2 km²overlap689.09 km²3%
42 more basinssorted by overlap
- Bassin de Ouadi Sifairsub-area988,2 km²overlap648.59 km²3%
- Bassin de وادي أظوم Bahr Azoumsub-area638,3 km²overlap635.27 km²3%
- Bassin de Ouadi Kodesub-area847,3 km²overlap593.66 km²3%
- Basin #37230sub-area533,6 km²overlap525.09 km²2%
- Bassin de وادي أظوم Bahr Azoumsub-area722,6 km²overlap491.97 km²2%
- Bassin de Ouadi Kourdousub-area921,7 km²overlap465.65 km²2%
- Bassin de Ouadi Dortisub-area1 703,1 km²overlap455.71 km²2%
- Basin #56410sub-area373,6 km²overlap343.06 km²2%
- Basin #05310sub-area623,5 km²overlap325.81 km²2%
- Basin #48800sub-area326,2 km²overlap324.95 km²2%
- Bassin de Ouadi Gabasoursub-area338,4 km²overlap324.15 km²2%
- Basin #66190sub-area690,3 km²overlap317.08 km²2%
- Bassin de وادي أظوم Bahr Azoumsub-area294 km²overlap292.86 km²1%
- Bassin de Ouadi Gabasoursub-area295,7 km²overlap289.57 km²1%
- Bassin de Ouadi Mouraysub-area278,6 km²overlap277.48 km²1%
- Bassin de وادي أظوم Bahr Azoumsub-area275,9 km²overlap274.83 km²1%
- Basin #40730sub-area257 km²overlap256.04 km²1%
- Bassin de Olo Ouaoualasub-area719,8 km²overlap254.47 km²1%
- Basin #39470sub-area233,3 km²overlap232.38 km²1%
- Bassin de Ouadi Sergilongsub-area232 km²overlap221.00 km²1%
- Bassin de Ouadi Kadjasub-area1 812,3 km²overlap203.71 km²1%
- Bassin de وادي أظوم Bahr Azoumsub-area199 km²overlap198.25 km²1%
- Basin #42080sub-area183,6 km²overlap182.84 km²1%
- Bassin de Ouadi Goltisub-area158,6 km²overlap157.98 km²1%
- Bassin de Madeldi Kujunungsub-area326,9 km²overlap151.64 km²1%
- Bassin de Ouadi Gérérésub-area313 km²overlap139.28 km²1%
- Basin #48590sub-area584,3 km²overlap130.56 km²1%
- Bassin de Ouadi Mouraysub-area96,2 km²overlap95.77 km²0%
- Bassin de Ouadi Kaosub-area96 km²overlap95.65 km²0%
- Bassin de Wadi Banasub-area1 897,2 km²overlap80.34 km²0%
- Basin #37390sub-area241 km²overlap74.81 km²0%
- Basin #77830sub-area1 223,2 km²overlap66.06 km²0%
- Bassin de Madeldi Adoyeisub-area437,8 km²overlap60.30 km²0%
- Bassin de Ouadi Takabalésub-area424,9 km²overlap47.02 km²0%
- Basin #84360sub-area1 435,1 km²overlap45.14 km²0%
- Bassin de Madeldi Kujunungsub-area43,3 km²overlap43.09 km²0%
- Bassin de وادي أظوم Bahr Azoumsub-area43,1 km²overlap42.94 km²0%
- Bassin de وادي أظوم Bahr Azoumsub-area1 465,2 km²overlap24.14 km²0%
- Bassin de Wadi Singeirisub-area1 442,3 km²overlap23.36 km²0%
- Bassin de وادي أظوم Bahr Azoumsub-area56 km²overlap12.72 km²0%
- Bassin de وادي صالحsub-area201,8 km²overlap9.04 km²0%
- Bassin de Ouadi Ouaoualasub-area236,9 km²overlap2.24 km²0%
Lakes (1, top by area)
Rivers / streams (53, ord ≥ 4)
- وادي أظوم Bahr Azoumord 7len here376.27 km71%total533 km
- Ouadi Gabasourord 3len here60.60 km100%total61 km
- Ouadi Moroord 2len here50.77 km98%total52 km
- Ouadi Laweytord 3len here49.48 km100%total50 km
- Ouadi Karbaord 2len here47.63 km98%total49 km
- Ouadi Kodeord 3len here45.84 km50%total92 km
- Ouadi Biriord 2len here42.37 km96%total44 km
- Ouadi Kourdouord 4len here41.64 km100%total42 km
- Ouadi Békindjéord 2len here39.12 km99%total40 km
- Madeldi Kujunungord 6len here38.95 km60%total64 km
- Ouadi Sifairord 3len here35.50 km55%total64 km
- wadi Ngurngurord 3len here31.04 km52%total59 km
41 more river segmentssorted by Strahler order + length
- Ouadi Sanioumaord 5len here29.41 km40%total74 km
- Ouadi Géréréord 5len here29.33 km89%total33 km
- Ouadi Bédangaord 1len here27.92 km99%total28 km
- Ouadi Kaoord 5len here26.26 km100%total26 km
- Ouadi Sergilongord 5len here25.38 km100%total25 km
- Ouadi Mourayord 5len here24.29 km100%total24 km
- Ouadi Aboundourouord 4len here24.25 km44%total56 km
- Ouadi Abonéord 4len here21.52 km100%total22 km
- Ouadi Birkéliord 3len here19.51 km100%total20 km
- Ouadi Katkouord 3len here17.28 km100%total17 km
- Ouadi Manianguiaord 4len here17.14 km33%total52 km
- Bataord 3len here16.52 km100%total17 km
- Ouadi Goltiord 3len here14.65 km100%total15 km
- Wadi Burduord 1len here11.51 km71%total16 km
- Wadi Araraord 6len here11.50 km100%total12 km
- Wadi Timassiord 2len here9.62 km58%total17 km
- Madeldi Adoyeiord 3len here9.48 km29%total33 km
- Ouadi Ganayord 2len here9.28 km83%total11 km
- Ouadi Birbritaord 2len here9.17 km100%total9 km
- Kurtiord 2len here9.13 km100%total9 km
- Olo Ouaoualaord 3len here9.09 km44%total21 km
- Ouadi Sodourord 1len here8.84 km85%total10 km
- Ouadi Choboord 1len here8.71 km100%total9 km
- Wadi Kunjanord 6len here8.60 km49%total18 km
- Eda Kongeiord 2len here8.37 km67%total12 km
- Eda Sowartaiord 1len here8.16 km43%total19 km
- Mundangyaord 3len here8.08 km28%total29 km
- Madeldi Chouch taord 2len here7.28 km44%total17 km
- Ouadi Tanièrtaord 2len here7.03 km94%total7 km
- Ouadi Dortiord 3len here6.40 km10%total62 km
- Wādī Marafangord 4len here6.12 km100%total6 km
- Ouadi Koudourouord 2len here4.64 km100%total5 km
- Ouadi Simbiord 1len here4.28 km100%total4 km
- Kamarutaord 6len here3.77 km44%total9 km
- Nyoliord 1len here3.41 km100%total3 km
- Kurchaord 3len here3.32 km100%total3 km
- Bahr Nziliord 6len here3.09 km2%total159 km
- Eda Kusulord 2len here2.85 km100%total3 km
- سرف جالوord 6len here1.83 km12%total15 km
- Madeldi Tukultukultaord 6len here0.51 km10%total5 km
- Ouadi Maloaord 2len here≈ tangenttotal8 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
4,2%
Pesticides
0,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)