Ontologia

Commune · TZA

Ivuna

Tanzania

AwTropical, savannah(100 %)

Species observed

27

Observations

57

Area

666,7km²

Ecological tissue

Sample of 3 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 Ivuna : 3 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2).

Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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

27 distinct species · 57 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

57 obs · 9 cellules
Obs. / cellule
≥ 41
41–40
4–40
1–3
< 1

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

Climate

Mean T°

24,6°C

Annual rain

894mm

Warmest m°

32,1°C

Coldest m°

16,9°C

Elevation: 899 m on average (min 798 m, max 1 200 m)

Bioclimatic detailsExpert
Annual mean temp.
24,6°C
Annual rain
894mm
Warmest month
32,1°C
Coldest month
16,9°C
Mean alt.
899m
Min
798m
Max
1 200m
Std. dev.
86m
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

5,7

Org. C

11,7g/kg

Clay

23,4%

Sand

65,9%

Silt

10,7%

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

Dominant lithology: ssGLiMaggregated to Momba

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
15,7g/kg
Clay
23,3%
Sand
66,0%
Silt
10,7%
5–15 cm
pH H₂O
5,7
Org. C
11,1g/kg
Clay
23,0%
Sand
66,4%
Silt
10,6%
15–30 cm
pH H₂O
5,7
Org. C
8,3g/kg
Clay
23,9%
Sand
65,4%
Silt
10,6%

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

Land cover

Forest14.4%
Crops31.5%
Built-up0.3%
Bare soil0.9%
Other (grassland, water…)53.0%

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

Hydrology3 basins · 1 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

1,4km

Lake surface here

50,24km²

Basins crossed

3

Max stream order

2

Max drainage

16 392km²

Discharge in basins

39,4m³/s

Mean precip.

1 013mm/an

Mean T°

23,6°C

Moisture idx

-0,42

Mean runoff

265mm/an

Mean elev. (basins)

969m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

27,1%

Pesticides

0,0kg/km²

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

Protected areas2

IUCN Not Reported · 2

Ivuna North

IUCN Not Reported

Forest Reserve · 1961

76 km²

Ivuna South

IUCN Not Reported

Forest Reserve · 1961

22 km²

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