Ontologia

District · TZA

Arusha

Tanzania

CwbTemperate, dry winter, warm summer(49 %)

Species observed

2 207

Observations

120 267

Area

1 237,1km²

Ecological tissue

Sample of 18 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 Arusha : 16 espèces reliées par 16 interactions GloBI sur 3 types (connectance 10.5%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
18
Interactions affichées
16
Connectance
0.105
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

2 207 distinct species · 120 267 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

120 267 obs · 22 cellules
Obs. / cellule
≥ 63 274
9 003–63 273
2 244–9 002
1 136–2 243
< 1 136

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

Climate

Mean T°

18,9°C

Annual rain

960mm

Warmest m°

27,1°C

Coldest m°

10,6°C

Elevation: 1 519 m on average (min 938 m, max 3 972 m)

Bioclimatic detailsExpert
Annual mean temp.
18,9°C
Annual rain
960mm
Warmest month
27,1°C
Coldest month
10,6°C
Mean alt.
1 519m
Min
938m
Max
3 972m
Std. dev.
497m
Köppen-Geiger (dominant)
CwbTemperate, dry winter, warm summer(49 %)Temperate

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

Soil & lithology

pH H₂O

7,1

Org. C

22,0g/kg

Clay

34,4%

Sand

41,3%

Silt

24,3%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,1
Org. C
27,7g/kg
Clay
33,3%
Sand
42,1%
Silt
24,6%
5–15 cm
pH H₂O
7,1
Org. C
21,8g/kg
Clay
33,1%
Sand
42,3%
Silt
24,6%
15–30 cm
pH H₂O
7,1
Org. C
16,5g/kg
Clay
36,8%
Sand
39,5%
Silt
23,7%

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

Land cover

Forest16.3%
Crops21.8%
Built-up2.0%
Bare soil1.4%
Other (grassland, water…)58.6%

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

Hydrology6 basins · 0 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

119,2km

Basins crossed

6

Max stream order

3

Max drainage

4 710km²

Discharge in basins

8,9m³/s

Mean precip.

867mm/an

Mean T°

19,7°C

Moisture idx

-0,43

Mean runoff

165mm/an

Mean elev. (basins)

1 333m

Watersheds crossing here

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

Human pressure

Pop. density

3hab/km²

Night light

0,4nW

Built-up

197,5%

Pesticides

0,0kg/km²

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

Protected areas9

IUCN Not Reported · 8IUCN II · 1

Enduimet WMA

IUCN Not Reported

Wildlife Management Area · 2007

1 388 km²

Monduli

IUCN Not Reported

Forest Reserve

87 km²

Meru

IUCN Not Reported

Forest Plantation · 1967

77 km²

Complete list

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

Sub-administrations21