Gadabédji Biosphere Reserve
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve · 2017
11 605 km²
Commune · NER
Tarka
Niger
BWhArid, desert, hot(100 %)
Species observed
88
Observations
194
Area
2 911,6km²
Ecological tissue
Sample of 5 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 Tarka : 4 espèces reliées par 5 interactions GloBI sur 1 type (connectance 33.3%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
6
Interactions affichées
5
Connectance
0.333
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
88 distinct species · 194 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,6°C
Annual rain
264mm
Warmest m°
39,8°C
Coldest m°
11,9°C
Elevation: 436 m on average (min 402 m, max 482 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
27,6°C
Annual rain
264mm
Warmest month
39,8°C
Coldest month
11,9°C
Mean alt.
436m
Min
402m
Max
482m
Std. dev.
15m
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
7,1
Org. C
4,0g/kg
Clay
21,8%
Sand
59,7%
Silt
18,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Tanout
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,1
Org. C
5,1g/kg
Clay
21,0%
Sand
60,1%
Silt
18,8%
5–15 cm
pH H₂O
7,1
Org. C
3,9g/kg
Clay
21,0%
Sand
60,3%
Silt
18,7%
15–30 cm
pH H₂O
7,2
Org. C
2,9g/kg
Clay
23,2%
Sand
58,6%
Silt
18,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest2.9%
Crops32.8%
Built-up0.1%
Bare soil4.1%
Other (grassland, water…)60.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology12 basins · 0 lakes · 0 rivers
Hydrology metrics for this exact territory
Basins crossed
12
Max drainage
18 451km²
Discharge in basins
1,1m³/s
Mean precip.
259mm/an
Mean T°
27,8°C
Moisture idx
-0,88
Mean runoff
15mm/an
Mean elev. (basins)
441m
Watersheds crossing here
- Basin #33290sub-area1 822,2 km²overlap1027.44 km²35%
- Basin #37240sub-area577,4 km²overlap443.36 km²15%
- Basin #29450sub-area817,8 km²overlap339.22 km²12%
- Basin #38810sub-area1 446,5 km²overlap287.01 km²10%
- Basin #38970sub-area1 540 km²overlap233.40 km²8%
- Basin #24090sub-area605,2 km²overlap211.66 km²7%
- Basin #29230sub-area819,4 km²overlap165.57 km²6%
- Basin #34850sub-area148,4 km²overlap116.87 km²4%
- Basin #33630sub-area766,1 km²overlap62.06 km²2%
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Built-up
8,3%
Pesticides
0,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Applicable · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN