Ontologia

Delegation · TUN

Bizerte Nord

Tunisia

CsaTemperate, dry summer, hot summer(100 %)

Species observed

47

Observations

63

Area

45,2km²

Ecological tissue

Sample of 18 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 Bizerte Nord : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 5 types (connectance 14.4%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
18
Interactions affichées
22
Connectance
0.144
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

47 distinct species · 63 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

63 obs · 1 cellules
Obs. / cellule
≥ 63
63–62
63–62
63–62
< 63

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

Climate

Mean T°

18,2°C

Annual rain

750mm

Warmest m°

27,9°C

Coldest m°

10,3°C

Elevation: 74 m on average (min -12 m, max 175 m)

Bioclimatic detailsExpert
Annual mean temp.
18,2°C
Annual rain
750mm
Warmest month
27,9°C
Coldest month
10,3°C
Mean alt.
74m
Min
-12m
Max
175m
Std. dev.
49m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

7,1

Org. C

28,0g/kg

Clay

35,0%

Sand

33,5%

Silt

31,5%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,1
Org. C
43,8g/kg
Clay
34,8%
Sand
32,6%
Silt
32,6%
5–15 cm
pH H₂O
7,2
Org. C
19,1g/kg
Clay
35,2%
Sand
32,3%
Silt
32,6%
15–30 cm
pH H₂O
7,0
Org. C
21,1g/kg
Clay
35,2%
Sand
35,6%
Silt
29,2%

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

Land cover

Forest8.7%
Crops17.8%
Built-up7.7%
Bare soil5.2%
Other (grassland, water…)60.6%

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

Hydrology2 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

2

Max drainage

699km²

Discharge in basins

0,0m³/s

Mean precip.

674mm/an

Mean T°

17,7°C

Moisture idx

-0,42

Max snow

1%

Mean runoff

202mm/an

Mean elev. (basins)

96m

Watersheds crossing here

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

Human pressure

Pop. density

15hab/km²

Night light

13,5nW

Built-up

772,7%

Pesticides

3,7kg/km²

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