Ontologia

Delegation · TUN

Hajeb El Ayoun

Tunisia

BShArid, steppe, hot(90 %)

Species observed

26

Observations

124

Area

576,9km²

Ecological tissue

Sample of 9 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 Hajeb El Ayoun : 9 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 6 interactions GloBI sur 2 types (connectance 13.3%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
10
Interactions affichées
6
Connectance
0.133
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

26 distinct species · 124 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

124 obs · 10 cellules
Obs. / cellule
≥ 37
37–36
22–36
9–21
< 9

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

Climate

Mean T°

18,6°C

Annual rain

328mm

Warmest m°

35,7°C

Coldest m°

4,4°C

Elevation: 375 m on average (min 268 m, max 623 m)

Bioclimatic detailsExpert
Annual mean temp.
18,6°C
Annual rain
328mm
Warmest month
35,7°C
Coldest month
4,4°C
Mean alt.
375m
Min
268m
Max
623m
Std. dev.
75m
Köppen-Geiger (dominant)
BShArid, steppe, hot(90 %)Arid

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

Soil & lithology

pH H₂O

7,9

Org. C

14,1g/kg

Clay

27,0%

Sand

44,8%

Silt

28,2%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,8
Org. C
18,9g/kg
Clay
24,6%
Sand
46,3%
Silt
29,1%
5–15 cm
pH H₂O
7,9
Org. C
12,4g/kg
Clay
26,6%
Sand
44,9%
Silt
28,5%
15–30 cm
pH H₂O
7,9
Org. C
11,0g/kg
Clay
29,8%
Sand
43,1%
Silt
27,2%

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

Land cover

Forest9.5%
Crops14.2%
Built-up0.5%
Bare soil17.2%
Other (grassland, water…)58.5%

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

Hydrology8 basins · 1 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

48,4km

Lake surface here

8,74km²

Basins crossed

8

Max stream order

5

Max drainage

8 994km²

Discharge in basins

6,5m³/s

Mean precip.

294mm/an

Mean T°

17,4°C

Moisture idx

-0,79

Mean runoff

33mm/an

Mean elev. (basins)

394m

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

Human pressure

Pop. density

0hab/km²

Night light

0,6nW

Built-up

50,7%

Pesticides

0,9kg/km²

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

Protected areas3

IUCN Not Reported · 2IUCN Not Assigned · 1

Barrage Sidi Saad

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 2012

18 km²

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