Ontologia

Delegation · TUN

Ghomrassen

Tunisia

BWhArid, desert, hot(100 %)

Species observed

99

Observations

211

Area

760,9km²

Ecological tissue

Sample of 25 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 Ghomrassen : 21 espèces reliées par 28 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
28
Connectance
0.074
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

99 distinct species · 211 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

211 obs · 10 cellules
Obs. / cellule
≥ 50
50–49
45–49
27–44
< 27

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

Climate

Mean T°

20,0°C

Annual rain

143mm

Warmest m°

35,2°C

Coldest m°

5,8°C

Elevation: 314 m on average (min 83 m, max 536 m)

Bioclimatic detailsExpert
Annual mean temp.
20,0°C
Annual rain
143mm
Warmest month
35,2°C
Coldest month
5,8°C
Mean alt.
314m
Min
83m
Max
536m
Std. dev.
112m
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

6,4g/kg

Clay

18,0%

Sand

53,7%

Silt

28,4%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,1
Org. C
8,1g/kg
Clay
18,5%
Sand
53,5%
Silt
28,0%
5–15 cm
pH H₂O
8,1
Org. C
5,7g/kg
Clay
17,5%
Sand
54,1%
Silt
28,5%
15–30 cm
pH H₂O
8,2
Org. C
5,4g/kg
Clay
17,9%
Sand
53,5%
Silt
28,6%

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

Land cover

Forest1.8%
Crops8.4%
Built-up0.3%
Bare soil46.0%
Other (grassland, water…)43.5%

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

Hydrology6 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

55,7km

Basins crossed

6

Max stream order

2

Max drainage

2 715km²

Discharge in basins

2,0m³/s

Mean precip.

146mm/an

Mean T°

20,0°C

Moisture idx

-0,90

Mean runoff

90mm/an

Mean elev. (basins)

232m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,3nW

Built-up

31,5%

Pesticides

0,0kg/km²

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