Ontologia

Commune · DZA

Frenda

Algeria

BSkArid, steppe, cold(100 %)

Species observed

53

Observations

151

Area

386,6km²

Ecological tissue

Sample of 20 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 Frenda : 15 espèces reliées par 22 interactions GloBI sur 3 types (connectance 11.6%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
22
Connectance
0.116
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 · 151 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

151 obs · 8 cellules
Obs. / cellule
≥ 63
63–62
16–62
12–15
< 12

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

Climate

Mean T°

15,4°C

Annual rain

415mm

Warmest m°

33,4°C

Coldest m°

1,5°C

Elevation: 1 023 m on average (min 687 m, max 1 232 m)

Bioclimatic detailsExpert
Annual mean temp.
15,4°C
Annual rain
415mm
Warmest month
33,4°C
Coldest month
1,5°C
Mean alt.
1 023m
Min
687m
Max
1 232m
Std. dev.
150m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(100 %)Arid

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

Soil & lithology

pH H₂O

7,5

Org. C

15,3g/kg

Clay

28,0%

Sand

39,7%

Silt

32,3%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,3
Org. C
22,3g/kg
Clay
27,7%
Sand
39,8%
Silt
32,5%
5–15 cm
pH H₂O
7,6
Org. C
12,7g/kg
Clay
27,7%
Sand
39,9%
Silt
32,4%
15–30 cm
pH H₂O
7,6
Org. C
10,9g/kg
Clay
28,7%
Sand
39,4%
Silt
31,9%

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

Land cover

Forest9.6%
Crops34.6%
Built-up0.5%
Bare soil4.5%
Other (grassland, water…)50.9%

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

Hydrology3 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

17,2km

Basins crossed

3

Max stream order

1

Max drainage

2 879km²

Discharge in basins

0,2m³/s

Mean precip.

446mm/an

Mean T°

15,3°C

Moisture idx

-0,59

Mean runoff

24mm/an

Mean elev. (basins)

846m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

1hab/km²

Night light

0,9nW

Built-up

47,4%

Pesticides

18,3kg/km²

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