Ontologia

District · TZA

Njombe Urban

Tanzania

CwbTemperate, dry winter, warm summer(100 %)

Species observed

518

Observations

1 745

Area

3 535,8km²

Ecological tissue

Sample of 37 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 Njombe Urban : 34 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 6 types (connectance 4.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
28
Connectance
0.042
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

518 distinct species · 1 745 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 745 obs · 62 cellules
Obs. / cellule
≥ 676
53–675
15–52
6–14
< 6

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

Climate

Mean T°

16,1°C

Annual rain

1 318mm

Warmest m°

22,9°C

Coldest m°

8,1°C

Elevation: 1 804 m on average (min 1 117 m, max 2 323 m)

Bioclimatic detailsExpert
Annual mean temp.
16,1°C
Annual rain
1 318mm
Warmest month
22,9°C
Coldest month
8,1°C
Mean alt.
1 804m
Min
1 117m
Max
2 323m
Std. dev.
247m
Köppen-Geiger (dominant)
CwbTemperate, dry winter, warm summer(100 %)Temperate

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

Soil & lithology

pH H₂O

5,0

Org. C

24,3g/kg

Clay

41,4%

Sand

43,6%

Silt

14,9%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
28,5g/kg
Clay
40,5%
Sand
44,4%
Silt
15,1%
5–15 cm
pH H₂O
5,0
Org. C
25,4g/kg
Clay
40,5%
Sand
44,5%
Silt
15,0%
15–30 cm
pH H₂O
5,0
Org. C
18,9g/kg
Clay
43,3%
Sand
42,0%
Silt
14,7%

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

Land cover

Forest30.7%
Crops29.0%
Built-up0.5%
Bare soil0.5%
Other (grassland, water…)39.3%

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

Hydrology12 basins · 1 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

85,2km

Lake surface here

0,61km²

Basins crossed

12

Max stream order

4

Max drainage

14 066km²

Discharge in basins

119,9m³/s

Mean precip.

1 361mm/an

Mean T°

17,3°C

Moisture idx

-0,05

Mean runoff

353mm/an

Mean elev. (basins)

1 694m

Watersheds crossing here

3 more basins

Lakes (1, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

54,1%

Pesticides

0,0kg/km²

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

Protected areas17

IUCN Not Reported · 17

Njilikwa

IUCN Not Reported

Forest Reserve

8 km²

Silupati

IUCN Not Reported

Forest Reserve

6 km²

Mayefiya

IUCN Not Reported

Forest Reserve · 1958

1 km²

Litoni

IUCN Not Reported

Forest Reserve · 1939

1 km²

Ikonde

IUCN Not Reported

Forest Reserve · 1958

1 km²

Complete list

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

Sub-administrations12