Forest Reserve Name Unknown (NGA) No.15
IUCN Not ReportedForest Reserve
3 km²
Local Authority · NGA
Jahun
Nigeria
BShArid, steppe, hot(84 %)
Species observed
112
Observations
825
Area
1 197,3km²
Ecological tissue
Sample of 26 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 Jahun : 20 espèces reliées par 24 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
26
Interactions affichées
24
Connectance
0.074
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
112 distinct species · 825 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,0°C
Annual rain
675mm
Warmest m°
39,0°C
Coldest m°
13,5°C
Elevation: 379 m on average (min 371 m, max 392 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
27,0°C
Annual rain
675mm
Warmest month
39,0°C
Coldest month
13,5°C
Mean alt.
379m
Min
371m
Max
392m
Std. dev.
5m
Köppen-Geiger (dominant)
BShArid, steppe, hot(84 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,6
Org. C
6,7g/kg
Clay
12,7%
Sand
75,4%
Silt
11,9%
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
0–5 cm
pH H₂O
6,6
Org. C
8,6g/kg
Clay
11,4%
Sand
76,6%
Silt
12,1%
5–15 cm
pH H₂O
6,6
Org. C
6,1g/kg
Clay
13,4%
Sand
74,7%
Silt
11,9%
15–30 cm
pH H₂O
6,5
Org. C
5,4g/kg
Clay
13,5%
Sand
74,8%
Silt
11,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest6.0%
Crops39.1%
Built-up0.7%
Bare soil1.4%
Other (grassland, water…)52.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology8 basins · 2 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
3,0km
Lake surface here
0,30km²
Basins crossed
8
Max stream order
3
Max drainage
24 070km²
Discharge in basins
13,0m³/s
Mean precip.
688mm/an
Mean T°
26,8°C
Moisture idx
-0,67
Mean runoff
78mm/an
Mean elev. (basins)
394m
Watersheds crossing here
- Basin #21350sub-area961 km²overlap259.23 km²22%
- Bassin de Hadejia Riversub-area2 241,6 km²overlap236.34 km²20%
- Basin #36300sub-area1 004,7 km²overlap229.62 km²19%
- Basin #29440sub-area599,2 km²overlap184.29 km²15%
- Basin #29210sub-area387,8 km²overlap146.20 km²12%
- Basin #36600sub-area904 km²overlap54.92 km²5%
- Bassin de Hadejia Riversub-area1 347,3 km²overlap53.98 km²5%
- Bassin de Hadejia Riversub-area2 556,7 km²overlap32.70 km²3%
Lakes (2, top by area)
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
0,0nW
Built-up
67,8%
Pesticides
29,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Reported · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN