Ontologia

District · TZA

Rufiji

Tanzania

AwTropical, savannah(100 %)

Species observed

2 224

Observations

36 424

Area

13 570,9km²

Ecological tissue

Sample of 16 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 Rufiji : 13 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 11 interactions GloBI sur 2 types (connectance 9.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
16
Interactions affichées
11
Connectance
0.092
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

2 224 distinct species · 36 424 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

36 424 obs · 200 cellules
Obs. / cellule
≥ 5 297
180–5 296
24–179
10–23
< 10

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

Climate

Mean T°

25,9°C

Annual rain

877mm

Warmest m°

32,3°C

Coldest m°

20,0°C

Elevation: 98 m on average (min -31 m, max 627 m)

Bioclimatic detailsExpert
Annual mean temp.
25,9°C
Annual rain
877mm
Warmest month
32,3°C
Coldest month
20,0°C
Mean alt.
98m
Min
-31m
Max
627m
Std. dev.
96m
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

6,0

Org. C

14,3g/kg

Clay

27,4%

Sand

58,7%

Silt

13,9%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
20,9g/kg
Clay
26,5%
Sand
59,3%
Silt
14,1%
5–15 cm
pH H₂O
6,0
Org. C
13,4g/kg
Clay
26,7%
Sand
59,2%
Silt
14,1%
15–30 cm
pH H₂O
6,0
Org. C
8,4g/kg
Clay
29,0%
Sand
57,4%
Silt
13,6%

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

Land cover

Forest37.0%
Crops11.8%
Built-up0.1%
Bare soil0.4%
Other (grassland, water…)50.7%

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

Hydrology35 basins · 41 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

442,5km

Lake surface here

47,07km²

Basins crossed

35

Max stream order

8

Max drainage

177 136km²

Discharge in basins

8 517,1m³/s

Mean precip.

1 081mm/an

Mean T°

25,9°C

Moisture idx

-0,28

Mean runoff

162mm/an

Mean elev. (basins)

120m

Watersheds crossing here

26 more basins

Lakes (41, top by area)

32 more lakes

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

11,5%

Pesticides

0,0kg/km²

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

Protected areas67

IUCN Not Reported · 65IUCN Not Applicable · 1IUCN IV · 1🌊 Marine · 29

Selous Game Reserve

IUCN Not Applicable

World Heritage Site (natural or mixed) · 1982

47 215 km²

Selous G.R

IUCN IV

Game Reserve · 1905

41 309 km²

Rufiji-Mafia-Kilwa

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 2004

5 158 km²

Lungonya

IUCN Not Reported

Forest Reserve · 1957

1 968 km²

Complete list

+ 7 protected areas (top 60 shown)

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

Sub-administrations25