Ontologia

District · TZA

Nkasi

Tanzania

AwTropical, savannah(75 %)

Species observed

1 099

Observations

3 268

Area

9 823,5km²

Ecological tissue

Sample of 30 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 Nkasi : 23 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 3 types (connectance 5.4%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
27
Connectance
0.054
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

1 099 distinct species · 3 268 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 268 obs · 162 cellules
Obs. / cellule
≥ 179
66–178
14–65
5–13
< 5

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

Climate

Mean T°

20,9°C

Annual rain

1 410mm

Warmest m°

27,6°C

Coldest m°

15,0°C

Elevation: 1 409 m on average (min 770 m, max 2 185 m)

Bioclimatic detailsExpert
Annual mean temp.
20,9°C
Annual rain
1 410mm
Warmest month
27,6°C
Coldest month
15,0°C
Mean alt.
1 409m
Min
770m
Max
2 185m
Std. dev.
320m
Köppen-Geiger (dominant)
AwTropical, savannah(75 %)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

14,7g/kg

Clay

22,9%

Sand

65,0%

Silt

12,1%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,5
Org. C
19,6g/kg
Clay
22,0%
Sand
65,8%
Silt
12,2%
5–15 cm
pH H₂O
5,5
Org. C
14,2g/kg
Clay
22,6%
Sand
65,3%
Silt
12,1%
15–30 cm
pH H₂O
5,4
Org. C
10,2g/kg
Clay
24,2%
Sand
63,9%
Silt
11,9%

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

Land cover

Forest29.7%
Crops28.7%
Built-up0.2%
Bare soil0.5%
Other (grassland, water…)40.9%

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

Hydrology29 basins · 2 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

149,8km

Lake surface here

18,45km²

Basins crossed

29

Max stream order

3

Max drainage

34 336km²

Discharge in basins

408,2m³/s

Mean precip.

969mm/an

Mean T°

25,2°C

Moisture idx

-0,46

Mean runoff

227mm/an

Mean elev. (basins)

1 307m

Watersheds crossing here

20 more basins

Lakes (2, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

16,3%

Pesticides

0,0kg/km²

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

Protected areas6

IUCN Not Reported · 5IUCN II · 1

Ukanga

IUCN Not Reported

Forest Reserve

1 123 km²

Kalambo

IUCN Not Reported

Nature Forest Reserve · 2019

459 km²

Loasi river

IUCN Not Reported

Forest Reserve · 1957

353 km²

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

Sub-administrations17