Niger Source
IUCN IVClassified Forest · 1945
2 465 km²
Commune · SLE
Neya
Sierra Leone
AwTropical, savannah(57 %)
Species observed
626
Observations
1 971
Area
1 364,9km²
Ecological tissue
Sample of 14 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 Neya : 13 espèces reliées par 10 interactions GloBI sur 2 types (connectance 11.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
14
Interactions affichées
10
Connectance
0.110
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
626 distinct species · 1 971 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
24,2°C
Annual rain
2 721mm
Warmest m°
33,2°C
Coldest m°
18,3°C
Elevation: 587 m on average (min 403 m, max 1 303 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
24,2°C
Annual rain
2 721mm
Warmest month
33,2°C
Coldest month
18,3°C
Mean alt.
587m
Min
403m
Max
1 303m
Std. dev.
145m
Köppen-Geiger (dominant)
AwTropical, savannah(57 %)Tropical
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,3
Org. C
32,3g/kg
Clay
32,5%
Sand
42,2%
Silt
25,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiMaggregated to Koinadugu
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,4
Org. C
44,5g/kg
Clay
31,4%
Sand
43,3%
Silt
25,3%
5–15 cm
pH H₂O
5,3
Org. C
32,0g/kg
Clay
30,5%
Sand
43,4%
Silt
26,1%
15–30 cm
pH H₂O
5,3
Org. C
20,3g/kg
Clay
35,6%
Sand
40,1%
Silt
24,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest46.8%
Crops0.5%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)52.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology8 basins · 0 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
42,0km
Basins crossed
8
Max stream order
4
Max drainage
3 192km²
Discharge in basins
62,2m³/s
Mean precip.
2 301mm/an
Mean T°
24,7°C
Moisture idx
0,16
Mean runoff
1 382mm/an
Mean elev. (basins)
531m
Watersheds crossing here
- Bassin de Bafisub-area1 668,8 km²overlap386.47 km²28%
- Bassin de Bafisub-area698 km²overlap364.93 km²27%
- Bassin de Bagbesub-area859,3 km²overlap304.35 km²22%
- Bassin de Melisub-area553,1 km²overlap187.77 km²14%
- Bassin de Bafisub-area523,8 km²overlap87.57 km²6%
- Bassin de Melisub-area599,8 km²overlap30.11 km²2%
- Bassin de Bagbesub-area1 642,1 km²overlap3.56 km²0%
- Bassin du Nigersub-area1 305,1 km²overlap0.12 km²0%
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Built-up
5,2%
Pesticides
13,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN IV · 1IUCN II · 1IUCN Not Reported · 1
Sankan Biriwa (Tingi Hills)
IUCN IINo or Non - Hunting Forest Reserve · 1947
321 km²
Loma Mountains
IUCN Not ReportedNational Park · 1952
288 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN