Ontologia

Commune · KEN

Witu

Kenya

AwTropical, savannah(100 %)

Species observed

664

Observations

1 889

Area

1 241,8km²

Ecological tissue

Sample of 33 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 Witu : 26 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 4 types (connectance 6.6%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
35
Connectance
0.066
Patrimoniales
3
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

664 distinct species · 1 889 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 889 obs · 18 cellules
Obs. / cellule
≥ 460
422–459
62–421
9–61
< 9

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

Climate

Mean T°

27,0°C

Annual rain

946mm

Warmest m°

34,6°C

Coldest m°

22,0°C

Elevation: 24 m on average (min 2 m, max 64 m)

Bioclimatic detailsExpert
Annual mean temp.
27,0°C
Annual rain
946mm
Warmest month
34,6°C
Coldest month
22,0°C
Mean alt.
24m
Min
2m
Max
64m
Std. dev.
12m
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

6,2

Org. C

21,7g/kg

Clay

26,9%

Sand

51,6%

Silt

21,5%

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

Dominant lithology: suGLiMaggregated to Lamu West

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
32,8g/kg
Clay
26,1%
Sand
52,0%
Silt
21,9%
5–15 cm
pH H₂O
6,2
Org. C
18,7g/kg
Clay
26,3%
Sand
52,2%
Silt
21,5%
15–30 cm
pH H₂O
6,2
Org. C
13,6g/kg
Clay
28,5%
Sand
50,5%
Silt
21,1%

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

Land cover

Forest33.5%
Crops6.3%
Built-up0.1%
Bare soil0.5%
Other (grassland, water…)59.6%

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

Hydrology4 basins · 2 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

3,2km

Lake surface here

1,97km²

Basins crossed

4

Max stream order

2

Max drainage

95 249km²

Discharge in basins

191,4m³/s

Mean precip.

873mm/an

Mean T°

27,0°C

Moisture idx

-0,44

Mean runoff

108mm/an

Mean elev. (basins)

23m

Watersheds crossing here

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

0hab/km²

Night light

0,0nW

Built-up

4,7%

Pesticides

0,6kg/km²

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

Protected areas5

IUCN Not Reported · 4IUCN VI · 1🌊 Marine · 1

Boni Ijara

IUCN Not Reported

Forest Reserve · 2017

4 519 km²

Panda Nguo

IUCN Not Reported

Forest Reserve · 2017

403 km²

Witu

IUCN Not Reported

Forest Reserve · 1962

40 km²

Hewani

IUCN Not Reported

Forest Reserve · 2013

36 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN