Marais de la Macta
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2001
441 km²
Commune · DZA
Sig
Algeria
BShArid, steppe, hot(84 %)
Species observed
86
Observations
129
Area
114,1km²
Ecological tissue
Sample of 40 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 Sig : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 6 types (connectance 5.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
41
Interactions affichées
44
Connectance
0.054
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
86 distinct species · 129 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
19,1°C
Annual rain
302mm
Warmest m°
34,2°C
Coldest m°
6,5°C
Elevation: 115 m on average (min 16 m, max 434 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
19,1°C
Annual rain
302mm
Warmest month
34,2°C
Coldest month
6,5°C
Mean alt.
115m
Min
16m
Max
434m
Std. dev.
89m
Köppen-Geiger (dominant)
BShArid, steppe, hot(84 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,6
Org. C
14,5g/kg
Clay
30,1%
Sand
31,9%
Silt
38,0%
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
0–5 cm
pH H₂O
7,5
Org. C
21,3g/kg
Clay
29,2%
Sand
32,3%
Silt
38,5%
5–15 cm
pH H₂O
7,7
Org. C
12,3g/kg
Clay
30,3%
Sand
31,8%
Silt
38,0%
15–30 cm
pH H₂O
7,7
Org. C
9,9g/kg
Clay
30,8%
Sand
31,7%
Silt
37,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest4.6%
Crops44.6%
Built-up1.7%
Bare soil6.5%
Other (grassland, water…)42.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
18,1km
Basins crossed
2
Max stream order
4
Max drainage
4 462km²
Discharge in basins
0,1m³/s
Mean precip.
407mm/an
Mean T°
17,2°C
Moisture idx
-0,60
Mean runoff
15mm/an
Mean elev. (basins)
259m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
5hab/km²
Night light
5,5nW
Built-up
169,7%
Pesticides
17,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Reported · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN