Dallol Bosso
IUCN IVWetland of International Importance (Ramsar Site) · 2004
8 921 km²
Arrondissement · NER
Kollo
Niger
BShArid, steppe, hot(73 %)
Species observed
693
Observations
5 138
Area
7 853,3km²
Ecological tissue
Sample of 29 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 Kollo : 20 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 4 types (connectance 6.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
29
Interactions affichées
28
Connectance
0.069
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
693 distinct species · 5 138 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
29,1°C
Annual rain
480mm
Warmest m°
40,3°C
Coldest m°
15,9°C
Elevation: 235 m on average (min 171 m, max 281 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
29,1°C
Annual rain
480mm
Warmest month
40,3°C
Coldest month
15,9°C
Mean alt.
235m
Min
171m
Max
281m
Std. dev.
22m
Köppen-Geiger (dominant)
BShArid, steppe, hot(73 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,5
Org. C
3,7g/kg
Clay
16,9%
Sand
69,3%
Silt
13,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,6
Org. C
4,4g/kg
Clay
14,7%
Sand
71,4%
Silt
14,0%
5–15 cm
pH H₂O
5,5
Org. C
3,7g/kg
Clay
16,7%
Sand
69,3%
Silt
14,0%
15–30 cm
pH H₂O
5,4
Org. C
3,0g/kg
Clay
19,2%
Sand
67,1%
Silt
13,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest2.7%
Crops20.5%
Built-up0.2%
Bare soil13.6%
Other (grassland, water…)63.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology35 basins · 5 lakes · 8 rivers
Hydrology metrics for this exact territory
Stream length here
253,6km
Lake surface here
1,19km²
Basins crossed
35
Max stream order
8
Max drainage
716 275km²
Discharge in basins
3 492,6m³/s
Mean precip.
474mm/an
Mean T°
29,0°C
Moisture idx
-0,77
Mean runoff
34mm/an
Mean elev. (basins)
238m
Watersheds crossing here
- Bassin de Nigersub-area2 275,3 km²overlap1529.37 km²19%
- Bassin du Nigersub-area1 208,6 km²overlap1203.95 km²15%
- Basin #82750sub-area1 022,8 km²overlap815.53 km²10%
- Basin #79410sub-area2 352,5 km²overlap756.28 km²10%
- Basin #92630sub-area844,5 km²overlap410.84 km²5%
- Basin #69450sub-area314,1 km²overlap283.98 km²4%
- Basin #82760sub-area300,9 km²overlap257.57 km²3%
- Basin #68590sub-area328,5 km²overlap245.20 km²3%
- Bassin de la Sirbasub-area2 321,8 km²overlap233.28 km²3%
26 more basinssorted by overlap
- Bassin du Nigersub-area329,9 km²overlap230.43 km²3%
- Bassin de Gorou Keynasub-area298,3 km²overlap205.42 km²3%
- Bassin du Nigersub-area301,1 km²overlap173.92 km²2%
- Bassin du Nigersub-area232,6 km²overlap165.95 km²2%
- Bassin de ruisseauxsub-area415,1 km²overlap163.84 km²2%
- Basin #68600sub-area217,3 km²overlap133.21 km²2%
- Bassin du Nigersub-area282,5 km²overlap131.42 km²2%
- Bassin du Nigersub-area131,9 km²overlap130.20 km²2%
- Bassin du Nigersub-area125,9 km²overlap123.83 km²2%
- Bassin du Nigersub-area237 km²overlap106.29 km²1%
- Bassin de Dallol Bossosub-area614,7 km²overlap103.67 km²1%
- Bassin du Gouroubisub-area2 305,1 km²overlap99.67 km²1%
- Basin #69250sub-area219,5 km²overlap87.28 km²1%
- Bassin de Nigersub-area774,3 km²overlap57.30 km²1%
- Bassin de ruisseausub-area299,9 km²overlap54.04 km²1%
- Bassin du Nigersub-area156,2 km²overlap50.76 km²1%
- Bassin du Nigersub-area105,3 km²overlap36.02 km²0%
- Bassin de Dallol Bossosub-area1 444,5 km²overlap30.43 km²0%
- Basin #64270sub-area2 365,5 km²overlap13.85 km²0%
- Basin #81400sub-area1 330,5 km²overlap9.80 km²0%
- Bassin du Nigersub-area54,3 km²overlap4.87 km²0%
- Bassin du Nigersub-area12,5 km²overlap2.10 km²0%
- Bassin du Nigersub-area788,6 km²overlap1.90 km²0%
- Basin #63790sub-area1 092,4 km²overlap1.08 km²0%
- Basin #63780sub-area417,4 km²overlap0.01 km²0%
- Bassin du Nigersub-area294,8 km²overlap0.00 km²0%
Lakes (5, top by area)
Rivers / streams (8, ord ≥ 4)
- Le Nigerord 8len here114.47 km2%total7108 km
- Nigerord 8len here89.08 km9%total943 km
- La Sirbaord 6len here32.71 km6%total568 km
- Soudouré Gorouord 1len here7.01 km100%total7 km
- Gorou Keynaord 4len here6.93 km33%total21 km
- Tapoaord 8len here2.02 km1%total401 km
- ruisseauxord 1len here1.35 km22%total6 km
- Fantasaguéord 3len here≈ tangenttotal68 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,1nW
Built-up
19,7%
Pesticides
0,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN IV · 2IUCN Ia · 1IUCN Not Applicable · 1
Dosso
IUCN IVPartial Fauna Reserve · 1962
5 423 km²
Parc national du W
IUCN IaWetland of International Importance (Ramsar Site) · 1987
3 851 km²
W Region
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve · 1996
2 197 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN