Cross River
IUCN IINational Park · 1991
3 297 km²
Local Authority · NGA
Boki
Nigeria
AmTropical, monsoon(93 %)
Species observed
613
Observations
3 890
Area
2 908,7km²
Ecological tissue
Sample of 7 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 Boki : 5 espèces reliées par 5 interactions GloBI sur 3 types (connectance 23.8%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
7
Interactions affichées
5
Connectance
0.238
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
613 distinct species · 3 890 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
25,8°C
Annual rain
2 980mm
Warmest m°
34,3°C
Coldest m°
21,5°C
Elevation: 178 m on average (min 52 m, max 1 021 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
25,8°C
Annual rain
2 980mm
Warmest month
34,3°C
Coldest month
21,5°C
Mean alt.
178m
Min
52m
Max
1 021m
Std. dev.
124m
Köppen-Geiger (dominant)
AmTropical, monsoon(93 %)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
24,3g/kg
Clay
25,2%
Sand
54,4%
Silt
20,4%
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
5,3
Org. C
32,9g/kg
Clay
23,1%
Sand
56,0%
Silt
20,9%
5–15 cm
pH H₂O
5,3
Org. C
23,3g/kg
Clay
24,0%
Sand
55,3%
Silt
20,8%
15–30 cm
pH H₂O
5,3
Org. C
16,5g/kg
Clay
28,7%
Sand
51,9%
Silt
19,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest85.9%
Crops0.2%
Built-up0.2%
Bare soil0.0%
Other (grassland, water…)13.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 0 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
198,9km
Basins crossed
7
Max stream order
4
Max drainage
14 845km²
Discharge in basins
543,5m³/s
Mean precip.
2 173mm/an
Mean T°
26,4°C
Moisture idx
0,22
Mean runoff
1 444mm/an
Mean elev. (basins)
207m
Watersheds crossing here
- Bassin de Afisub-area1 557,9 km²overlap1109.98 km²38%
- Bassin de Magbesub-area1 620,7 km²overlap925.08 km²32%
- Bassin de Onwulsub-area2 744,3 km²overlap512.52 km²18%
- Bassin de Crosssub-area582,9 km²overlap162.09 km²6%
- Bassin de Anyimsub-area421,8 km²overlap100.65 km²3%
- Bassin de Cross Riversub-area210,4 km²overlap66.86 km²2%
- Bassin de Matenesub-area1 915,1 km²overlap31.52 km²1%
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Built-up
15,7%
Pesticides
37,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN Not Reported · 3IUCN II · 1
Afi River
IUCN Not ReportedForest Reserve
310 km²
Afi Mountain
IUCN Not ReportedWildlife Sanctuary
104 km²
Mbe Mountains
IUCN Not ReportedCommunity Forest
86 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN