Ontologia

Chef-Lieu-Wilaya · DZA

Medea

Algeria

CsaTemperate, dry summer, hot summer(100 %)

Species observed

107

Observations

209

Area

66,6km²

Ecological tissue

Sample of 39 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 Medea : 31 espèces reliées par 55 interactions GloBI sur 5 types (connectance 7.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
55
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

107 distinct species · 209 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

209 obs · 2 cellules
Obs. / cellule
≥ 181
181–180
181–180
181–180
< 181

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

Climate

Mean T°

15,3°C

Annual rain

752mm

Warmest m°

32,2°C

Coldest m°

2,0°C

Elevation: 775 m on average (min 504 m, max 1 012 m)

Bioclimatic detailsExpert
Annual mean temp.
15,3°C
Annual rain
752mm
Warmest month
32,2°C
Coldest month
2,0°C
Mean alt.
775m
Min
504m
Max
1 012m
Std. dev.
124m
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

6,6

Org. C

32,5g/kg

Clay

32,8%

Sand

32,0%

Silt

35,2%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
53,4g/kg
Clay
33,1%
Sand
31,9%
Silt
35,0%
5–15 cm
pH H₂O
6,6
Org. C
24,5g/kg
Clay
32,7%
Sand
31,7%
Silt
35,6%
15–30 cm
pH H₂O
6,6
Org. C
19,6g/kg
Clay
32,7%
Sand
32,5%
Silt
34,9%

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

Land cover

Forest12.2%
Crops14.8%
Built-up5.8%
Bare soil3.7%
Other (grassland, water…)63.5%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

7,0km

Basins crossed

2

Max stream order

2

Max drainage

23 729km²

Discharge in basins

0,6m³/s

Mean precip.

667mm/an

Mean T°

16,6°C

Moisture idx

-0,39

Max snow

1%

Mean runoff

155mm/an

Mean elev. (basins)

508m

Watersheds crossing here

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

Human pressure

Pop. density

16hab/km²

Night light

10,7nW

Built-up

581,3%

Pesticides

18,5kg/km²

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

Protected areas2

IUCN Not Applicable · 1IUCN II · 1

Chréa

IUCN Not Applicable

UNESCO-MAB Biosphere Reserve · 2002

412 km²

Chréa

IUCN II

National Park · 1983

277 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN