Ontologia

Governorate · tun

Sfax

Tunisia

BWhArid, desert, hot(89 %)

Species observed

574

Observations

4 286

Area

7 228,9km²

Ecological tissue

Sample of 33 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 Sfax : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 6 types (connectance 11.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
60
Connectance
0.114
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

574 distinct species · 4 286 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 286 obs · 110 cellules
Obs. / cellule
≥ 1 099
47–1 098
21–46
9–20
< 9

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

Climate

Mean T°

19,9°C

Annual rain

237mm

Warmest m°

34,0°C

Coldest m°

7,1°C

Elevation: 92 m on average (min -7 m, max 244 m)

Bioclimatic detailsExpert
Annual mean temp.
19,9°C
Annual rain
237mm
Warmest month
34,0°C
Coldest month
7,1°C
Mean alt.
92m
Min
-7m
Max
244m
Std. dev.
56m
Köppen-Geiger (dominant)
BWhArid, desert, hot(89 %)Arid

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

Soil & lithology

pH H₂O

8,1

Org. C

10,4g/kg

Clay

23,7%

Sand

49,6%

Silt

26,7%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
13,0g/kg
Clay
22,8%
Sand
50,2%
Silt
26,9%
5–15 cm
pH H₂O
8,1
Org. C
9,2g/kg
Clay
23,8%
Sand
49,2%
Silt
27,0%
15–30 cm
pH H₂O
8,1
Org. C
8,8g/kg
Clay
24,4%
Sand
49,4%
Silt
26,2%

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

Land cover

Forest6.4%
Crops11.4%
Built-up1.3%
Bare soil35.9%
Other (grassland, water…)45.1%

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

Hydrology19 basins · 2 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

183,3km

Lake surface here

21,92km²

Basins crossed

19

Max stream order

5

Max drainage

4 114km²

Discharge in basins

8,9m³/s

Mean precip.

204mm/an

Mean T°

18,6°C

Moisture idx

-0,84

Mean runoff

50mm/an

Mean elev. (basins)

99m

Watersheds crossing here

10 more basins

Lakes (2, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

1,6nW

Built-up

128,3%

Pesticides

0,0kg/km²

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

Protected areas12

IUCN Not Reported · 11IUCN Not Assigned · 1🌊 Marine · 9📍 Point sites · 1

Sebkhat Noual

IUCN Not Reported

Wetland Zone of National Importance · 2007

148 km²

Sebkhat Noual

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 2007

148 km²

Kneiss iles

IUCN Not Reported

Wetland Zone of National Importance · 1979

59 km²

Kneiss iles

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 2007

59 km²

Kneiss iles

IUCN Not Reported

Nature Reserve · 1993

59 km²

Al Gounna

IUCN Not Assigned

Nature Reserve · 2010

52 km²

Complete list

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

Sub-administrations15