Chef-Lieu-Wilaya · DZA
Biskra
Algeria
Species observed
584
Observations
1 301
Area
127,8km²
Ecological tissue
Sample of 42 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).
Indicateurs du tissu écologique
Tissu écologique de Biskra : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 4 types (connectance 6.6%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
584 distinct species · 1 301 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
22,6°C
Annual rain
136mm
Warmest m°
39,2°C
Coldest m°
5,8°C
Elevation: 121 m on average (min 66 m, max 263 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
8,2
Org. C
8,3g/kg
Clay
19,1%
Sand
47,0%
Silt
33,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
16,8km
Basins crossed
4
Max stream order
4
Max drainage
30 564km²
Discharge in basins
3,0m³/s
Mean precip.
143mm/an
Mean T°
21,1°C
Moisture idx
-0,90
Mean runoff
32mm/an
Mean elev. (basins)
174m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
15hab/km²
Night light
27,0nW
Built-up
576,2%
Pesticides
0,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)