Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve · 2000
80 539 km²
Subdivision · MAR
Melaab
Morocco
BWhArid, desert, hot(100 %)
Species observed
277
Observations
2 839
Area
1 585,4km²
Ecological tissue
Sample of 25 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 Melaab : 16 espèces reliées par 45 interactions GloBI sur 4 types (connectance 13.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
26
Interactions affichées
45
Connectance
0.139
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
277 distinct species · 2 839 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
20,8°C
Annual rain
116mm
Warmest m°
38,2°C
Coldest m°
1,9°C
Elevation: 1 043 m on average (min 883 m, max 1 354 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
20,8°C
Annual rain
116mm
Warmest month
38,2°C
Coldest month
1,9°C
Mean alt.
1 043m
Min
883m
Max
1 354m
Std. dev.
104m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)Arid
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
4,7g/kg
Clay
22,5%
Sand
49,1%
Silt
28,4%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Errachidia
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
8,2
Org. C
6,0g/kg
Clay
21,9%
Sand
49,5%
Silt
28,6%
5–15 cm
pH H₂O
8,2
Org. C
4,4g/kg
Clay
22,3%
Sand
49,3%
Silt
28,4%
15–30 cm
pH H₂O
8,2
Org. C
3,8g/kg
Clay
23,3%
Sand
48,4%
Silt
28,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest0.4%
Crops0.5%
Built-up0.0%
Bare soil90.0%
Other (grassland, water…)9.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology10 basins · 0 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
90,9km
Basins crossed
10
Max stream order
5
Max drainage
8 911km²
Discharge in basins
33,8m³/s
Mean precip.
117mm/an
Mean T°
19,0°C
Moisture idx
-0,93
Mean runoff
41mm/an
Mean elev. (basins)
1 060m
Watersheds crossing here
- Bassin de Oued Toudra ⴰⵙⵉⴼ ⵏ ⵜⵓⴷⵖⴰ وادي تدغةsub-area633,9 km²overlap525.38 km²33%
- Bassin de Oued Gheris ⴰⵙⵉⴼ ⵏ ⵖⵔⵉⵙ وادي اغريسsub-area569,6 km²overlap285.69 km²18%
- Bassin de Oued Alnifsub-area3 179,2 km²overlap201.22 km²13%
- Bassin de Ousilkanesub-area826,9 km²overlap170.20 km²11%
- Bassin de Oued Gheris ⴰⵙⵉⴼ ⵏ ⵖⵔⵉⵙ وادي اغريسsub-area2 012,5 km²overlap138.05 km²9%
- Bassin de Oued Gheris ⴰⵙⵉⴼ ⵏ ⵖⵔⵉⵙ وادي اغريسsub-area484,8 km²overlap129.33 km²8%
- Bassin de Oued Toudra ⴰⵙⵉⴼ ⵏ ⵜⵓⴷⵖⴰ وادي تدغةsub-area232,6 km²overlap59.43 km²4%
- Bassin de Qued Chouirefsub-area1 183,6 km²overlap51.79 km²3%
- Bassin de Oued Tarda ⴰⵙⵉⴼ ⵏ ⵜⴰⵔⴷⴰ وادي تاردةsub-area867,4 km²overlap22.87 km²1%
1 more basinssorted by overlap
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,1nW
Built-up
4,0%
Pesticides
0,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Applicable · 2IUCN Not Reported · 1
Alnif
IUCN Not ApplicablePermanent Hunting Reserve · 2021
5 730 km²
Oasis du Tafilalet
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2005
153 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN