Delta Intérieur du Niger
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2004
40 802 km²
Subdivision · MLI
Tonka
Mali
BWhArid, desert, hot(100 %)
Species observed
54
Observations
155
Area
671,6km²
Ecological tissue
Sample of 7 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 Tonka : 7 espèces reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, filtre Serrano α=0.2).
Espèces affichées
7
Interactions affichées
4
Connectance
0.191
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
54 distinct species · 155 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
29,4°C
Annual rain
211mm
Warmest m°
40,9°C
Coldest m°
14,6°C
Elevation: 273 m on average (min 253 m, max 389 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
29,4°C
Annual rain
211mm
Warmest month
40,9°C
Coldest month
14,6°C
Mean alt.
273m
Min
253m
Max
389m
Std. dev.
28m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)Arid
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
6,5g/kg
Clay
34,3%
Sand
39,2%
Silt
26,4%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Goundam
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,4
Org. C
7,8g/kg
Clay
32,5%
Sand
40,4%
Silt
27,2%
5–15 cm
pH H₂O
7,4
Org. C
5,9g/kg
Clay
33,4%
Sand
39,8%
Silt
26,8%
15–30 cm
pH H₂O
7,4
Org. C
5,8g/kg
Clay
37,2%
Sand
37,5%
Silt
25,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest1.6%
Crops16.3%
Built-up0.3%
Bare soil19.4%
Other (grassland, water…)62.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology5 basins · 7 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
16,2km
Lake surface here
106,07km²
Basins crossed
5
Max stream order
8
Max drainage
340 196km²
Discharge in basins
133,0m³/s
Mean precip.
226mm/an
Mean T°
27,9°C
Moisture idx
-0,89
Mean runoff
29mm/an
Mean elev. (basins)
278m
Watersheds crossing here
Lakes (7, top by area)
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,0nW
Built-up
28,7%
Pesticides
0,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 1IUCN IV · 1
Fati Somidara
IUCN IVClassified Forest · 1947
88 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN