Ontologia

Delegation · TUN

Bir El Hfay

Tunisia

BWhArid, desert, hot(99 %)

Species observed

24

Observations

40

Area

470,7km²

Ecological tissue

Sample of 13 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 Bir El Hfay : 13 espèces reliées par 11 interactions GloBI sur 3 types (connectance 14.1%, filtre Serrano α=0.2).

Espèces affichées
13
Interactions affichées
11
Connectance
0.141
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

24 distinct species · 40 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

40 obs · 6 cellules
Obs. / cellule
≥ 14
14–13
10–13
8–9
< 8

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

Climate

Mean T°

18,9°C

Annual rain

253mm

Warmest m°

36,0°C

Coldest m°

4,4°C

Elevation: 421 m on average (min 345 m, max 590 m)

Bioclimatic detailsExpert
Annual mean temp.
18,9°C
Annual rain
253mm
Warmest month
36,0°C
Coldest month
4,4°C
Mean alt.
421m
Min
345m
Max
590m
Std. dev.
49m
Köppen-Geiger (dominant)
BWhArid, desert, hot(99 %)Arid

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

Soil & lithology

pH H₂O

8,0

Org. C

11,7g/kg

Clay

22,7%

Sand

50,8%

Silt

26,5%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
14,9g/kg
Clay
20,7%
Sand
52,4%
Silt
26,8%
5–15 cm
pH H₂O
8,0
Org. C
9,8g/kg
Clay
22,0%
Sand
51,3%
Silt
26,7%
15–30 cm
pH H₂O
8,0
Org. C
10,3g/kg
Clay
25,5%
Sand
48,6%
Silt
25,9%

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

Land cover

Forest7.7%
Crops23.6%
Built-up0.8%
Bare soil17.6%
Other (grassland, water…)50.3%

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

Hydrology7 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

7

Max drainage

3 613km²

Discharge in basins

2,7m³/s

Mean precip.

229mm/an

Mean T°

17,6°C

Moisture idx

-0,84

Mean runoff

32mm/an

Mean elev. (basins)

456m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,7nW

Built-up

81,7%

Pesticides

0,9kg/km²

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