Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve · 2000
80 539 km²
Subdivision · MAR
Oulad Yahya Lagraire
Morocco
BWhArid, desert, hot(75 %)
Species observed
237
Observations
1 501
Area
466km²
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 Oulad Yahya Lagraire : 20 espèces reliées par 38 interactions GloBI sur 4 types (connectance 11.7%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
26
Interactions affichées
38
Connectance
0.117
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
237 distinct species · 1 501 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
19,7°C
Annual rain
140mm
Warmest m°
36,4°C
Coldest m°
1,8°C
Elevation: 1 317 m on average (min 831 m, max 2 110 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
19,7°C
Annual rain
140mm
Warmest month
36,4°C
Coldest month
1,8°C
Mean alt.
1 317m
Min
831m
Max
2 110m
Std. dev.
306m
Köppen-Geiger (dominant)
BWhArid, desert, hot(75 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
8,1
Org. C
7,8g/kg
Clay
22,7%
Sand
51,1%
Silt
26,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Ouarzazate
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
8,0
Org. C
10,6g/kg
Clay
22,2%
Sand
51,5%
Silt
26,3%
5–15 cm
pH H₂O
8,1
Org. C
6,6g/kg
Clay
22,0%
Sand
51,5%
Silt
26,5%
15–30 cm
pH H₂O
8,1
Org. C
6,2g/kg
Clay
23,8%
Sand
50,2%
Silt
26,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest1.0%
Crops0.8%
Built-up0.0%
Bare soil73.8%
Other (grassland, water…)24.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology6 basins · 0 lakes · 8 rivers
Hydrology metrics for this exact territory
Stream length here
91,0km
Basins crossed
6
Max stream order
6
Max drainage
18 856km²
Discharge in basins
32,6m³/s
Mean precip.
115mm/an
Mean T°
18,5°C
Moisture idx
-0,93
Mean runoff
56mm/an
Mean elev. (basins)
1 244m
Watersheds crossing here
- Bassin de Oued Drâa ⴰⵙⵉⴼ ⵏ ⴷⵔⵄⴰ واد درعةsub-area936,2 km²overlap432.76 km²93%
- Bassin de Oued Drâa ⴰⵙⵉⴼ ⵏ ⴷⵔⵄⴰ واد درعةsub-area1 189,3 km²overlap13.88 km²3%
- Bassin de Assif Ourtisub-area519,6 km²overlap9.95 km²2%
- Bassin de Assif n Taoudacht ⴰⵙⵉⴼ ⵏ ⵜⴰⵡⴷⴰⵛⵜsub-area3 761,3 km²overlap6.74 km²1%
- Bassin de Oued Drâa ⴰⵙⵉⴼ ⵏ ⴷⵔⵄⴰ وادي درعةsub-area634,5 km²overlap2.15 km²0%
- Bassin de Oued Dadessub-area1 957,1 km²overlap0.49 km²0%
Rivers / streams (8, ord ≥ 4)
- Oued Ousraiord 2len here24.33 km100%total24 km
- Assif Tanguerfaord 2len here22.17 km82%total27 km
- Oued Drâa ⴰⵙⵉⴼ ⵏ ⴷⵔⵄⴰ واد درعةord 7len here13.61 km2%total881 km
- Assif Anrhiord 1len here12.75 km100%total13 km
- Assif n'Trhoubitord 1len here5.43 km100%total5 km
- Aqqa Bou Faghriyounord 1len here4.94 km22%total22 km
- Assif n'Isfoulaord 1len here4.66 km45%total10 km
- Akka n'Ouineord 1len here3.14 km100%total3 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
2,3%
Pesticides
0,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Applicable · 2IUCN Not Reported · 1
Moyenne Dr'a
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2005
564 km²
Jbel Sargho
IUCN Not ApplicableBiological and Ecological Interest Site · 1994
218 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN