Tlemcen
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve · 2016
1 064 km²
Commune · DZA
Algeria
Species observed
229
Observations
394
Area
196,5km²
Sample of 38 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).
Tissu écologique de Terny Beni Hediel : 27 espèces reliées par 55 interactions GloBI sur 6 types (connectance 7.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
229 distinct species · 394 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
13,2°C
Annual rain
502mm
Warmest m°
30,3°C
Coldest m°
-0,4°C
Elevation: 1 259 m on average (min 809 m, max 1 471 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
7,2
Org. C
23,3g/kg
Clay
25,9%
Sand
39,4%
Silt
34,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Lake surface here
0,48km²
Basins crossed
3
Max drainage
4 957km²
Discharge in basins
0,2m³/s
Mean precip.
494mm/an
Mean T°
15,5°C
Moisture idx
-0,58
Max snow
1%
Mean runoff
27mm/an
Mean elev. (basins)
740m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,6nW
Built-up
16,9%
Pesticides
18,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
UNESCO-MAB Biosphere Reserve · 2016
1 064 km²
Wetland of International Importance (Ramsar Site) · 2003
533 km²
National Park · 1993
82 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN