Ontologia

Commune · KEN

Riana

Kenya

AfTropical, rainforest(100 %)

Species observed

110

Observations

214

Area

48,2km²

Ecological tissue

Sample of 27 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 Riana : 24 espèces reliées par 28 interactions GloBI sur 3 types (connectance 8.0%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
28
Connectance
0.080
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

110 distinct species · 214 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

214 obs · 2 cellules
Obs. / cellule
≥ 119
119–118
119–118
119–118
< 119

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

20,6°C

Annual rain

1 629mm

Warmest m°

26,9°C

Coldest m°

15,0°C

Elevation: 1 484 m on average (min 1 416 m, max 1 615 m)

Bioclimatic detailsExpert
Annual mean temp.
20,6°C
Annual rain
1 629mm
Warmest month
26,9°C
Coldest month
15,0°C
Mean alt.
1 484m
Min
1 416m
Max
1 615m
Std. dev.
35m
Köppen-Geiger (dominant)
AfTropical, rainforest(100 %)Tropical

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

5,5

Org. C

25,4g/kg

Clay

41,8%

Sand

29,0%

Silt

29,3%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: mtGLiMaggregated to Bonchari

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
35,3g/kg
Clay
41,0%
Sand
29,3%
Silt
29,8%
5–15 cm
pH H₂O
5,5
Org. C
23,7g/kg
Clay
42,4%
Sand
28,4%
Silt
29,1%
15–30 cm
pH H₂O
5,5
Org. C
17,2g/kg
Clay
42,0%
Sand
29,2%
Silt
28,9%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest28.3%
Crops31.4%
Built-up4.6%
Bare soil0.6%
Other (grassland, water…)35.2%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

11,8km

Basins crossed

2

Max stream order

3

Max drainage

3 108km²

Discharge in basins

0,4m³/s

Mean precip.

1 515mm/an

Mean T°

20,4°C

Moisture idx

-0,16

Mean runoff

298mm/an

Mean elev. (basins)

1 503m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

7hab/km²

Night light

0,5nW

Built-up

461,1%

Pesticides

1,9kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)