Ontologia

Delegation · TUN

El Ghraiba

Tunisia

BWhArid, desert, hot(100 %)

Species observed

53

Observations

98

Area

427,9km²

Ecological tissue

Sample of 17 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 El Ghraiba : 15 espèces reliées par 14 interactions GloBI sur 2 types (connectance 10.3%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
17
Interactions affichées
14
Connectance
0.103
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Species present

53 distinct species · 98 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

98 obs · 7 cellules
Obs. / cellule
≥ 47
47–46
6–46
5–5
< 5

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

Climate

Mean T°

20,5°C

Annual rain

196mm

Warmest m°

34,7°C

Coldest m°

6,6°C

Elevation: 44 m on average (min -6 m, max 130 m)

Bioclimatic detailsExpert
Annual mean temp.
20,5°C
Annual rain
196mm
Warmest month
34,7°C
Coldest month
6,6°C
Mean alt.
44m
Min
-6m
Max
130m
Std. dev.
31m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)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

8,4g/kg

Clay

21,8%

Sand

54,9%

Silt

23,4%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,1
Org. C
10,9g/kg
Clay
21,6%
Sand
54,8%
Silt
23,6%
5–15 cm
pH H₂O
8,2
Org. C
6,9g/kg
Clay
21,5%
Sand
54,6%
Silt
23,8%
15–30 cm
pH H₂O
8,2
Org. C
7,4g/kg
Clay
22,2%
Sand
55,2%
Silt
22,7%

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

Land cover

Forest3.0%
Crops5.6%
Built-up0.4%
Bare soil55.7%
Other (grassland, water…)35.4%

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

Hydrology3 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

15,3km

Basins crossed

3

Max stream order

5

Max drainage

4 114km²

Discharge in basins

1,0m³/s

Mean precip.

172mm/an

Mean T°

18,5°C

Moisture idx

-0,87

Mean runoff

68mm/an

Mean elev. (basins)

62m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,5nW

Built-up

36,2%

Pesticides

0,0kg/km²

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

Protected areas3

IUCN Not Reported · 3🌊 Marine · 3

Kneiss iles

IUCN Not Reported

Nature Reserve · 1993

59 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

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