Ontologia

Delegation · TUN

Hidra

Tunisia

BSkArid, steppe, cold(94 %)

Species observed

26

Observations

42

Area

431km²

Ecological tissue

Sample of 5 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 Hidra : 5 espèces reliées par 3 interactions GloBI sur 1 type (connectance 20.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
6
Interactions affichées
3
Connectance
0.200
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

26 distinct species · 42 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

42 obs · 8 cellules
Obs. / cellule
≥ 18
18–17
5–17
2–4
< 2

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

Climate

Mean T°

15,8°C

Annual rain

442mm

Warmest m°

33,5°C

Coldest m°

1,2°C

Elevation: 873 m on average (min 680 m, max 1 142 m)

Bioclimatic detailsExpert
Annual mean temp.
15,8°C
Annual rain
442mm
Warmest month
33,5°C
Coldest month
1,2°C
Mean alt.
873m
Min
680m
Max
1 142m
Std. dev.
101m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(94 %)Arid

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

Soil & lithology

pH H₂O

7,7

Org. C

15,4g/kg

Clay

26,7%

Sand

40,4%

Silt

32,9%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,6
Org. C
23,2g/kg
Clay
25,6%
Sand
41,2%
Silt
33,2%
5–15 cm
pH H₂O
7,7
Org. C
12,4g/kg
Clay
25,8%
Sand
40,7%
Silt
33,6%
15–30 cm
pH H₂O
7,7
Org. C
10,6g/kg
Clay
28,7%
Sand
39,4%
Silt
31,9%

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

Land cover

Forest8.6%
Crops33.2%
Built-up0.2%
Bare soil8.9%
Other (grassland, water…)49.2%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

63,9km

Basins crossed

2

Max stream order

3

Max drainage

2 098km²

Discharge in basins

0,6m³/s

Mean precip.

418mm/an

Mean T°

15,8°C

Moisture idx

-0,69

Mean runoff

48mm/an

Mean elev. (basins)

821m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,4nW

Built-up

16,3%

Pesticides

2,1kg/km²

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