Rikau
IUCN Not ReportedForest Reserve
194 km²
Local Authority · NGA
Giwa
Nigeria
AwTropical, savannah(100 %)
Species observed
302
Observations
1 747
Area
1 950,2km²
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 Giwa : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
26
Interactions affichées
23
Connectance
0.071
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
302 distinct species · 1 747 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
25,0°C
Annual rain
1 098mm
Warmest m°
36,3°C
Coldest m°
15,5°C
Elevation: 649 m on average (min 590 m, max 712 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
25,0°C
Annual rain
1 098mm
Warmest month
36,3°C
Coldest month
15,5°C
Mean alt.
649m
Min
590m
Max
712m
Std. dev.
26m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,1
Org. C
7,7g/kg
Clay
16,7%
Sand
51,1%
Silt
32,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,2
Org. C
9,5g/kg
Clay
13,3%
Sand
54,0%
Silt
32,8%
5–15 cm
pH H₂O
6,1
Org. C
7,5g/kg
Clay
14,2%
Sand
52,4%
Silt
33,4%
15–30 cm
pH H₂O
6,1
Org. C
6,0g/kg
Clay
22,6%
Sand
46,8%
Silt
30,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest7.0%
Crops44.8%
Built-up0.5%
Bare soil2.1%
Other (grassland, water…)45.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology6 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
2,3km
Basins crossed
6
Max stream order
1
Max drainage
4 566km²
Discharge in basins
22,3m³/s
Mean precip.
1 106mm/an
Mean T°
25,0°C
Moisture idx
-0,40
Mean runoff
232mm/an
Mean elev. (basins)
650m
Watersheds crossing here
- Bassin de Tubosub-area3 425,2 km²overlap1549.57 km²79%
- Bassin de Galma Riversub-area885,3 km²overlap189.11 km²10%
- Basin #84310sub-area199,3 km²overlap95.30 km²5%
- Bassin de Galma Riversub-area488,7 km²overlap51.91 km²3%
- Basin #79910sub-area245,8 km²overlap46.49 km²2%
- Basin #50610sub-area2 129,7 km²overlap17.83 km²1%
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
54,1%
Pesticides
38,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas8
IUCN Not Reported · 8
Complete list8 protected areas
- RikauForest ReserveIUCN Not Reported194 km²
- LabarForest ReserveIUCN Not Reported133 km²
- FatikaForest ReserveIUCN Not Reported54 km²
- GugaForest ReserveIUCN Not Reported28 km²
- KakangiForest ReserveIUCN Not Reported27 km²
- IdasuForest ReserveIUCN Not Reported11 km²
- Maje (West)Forest ReserveIUCN Not Reported9 km²
- Giwa (North)Forest ReserveIUCN Not Reported3 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN