Department · MRT
Ould Yengé
Mauritania
Species observed
138
Observations
428
Area
3 585,3km²
Ecological tissue
Sample of 17 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 Ould Yengé : 14 espèces reliées par 15 interactions GloBI sur 2 types (connectance 8.8%, filtre Serrano α=0.2). 5 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
138 distinct species · 428 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
30,3°C
Annual rain
398mm
Warmest m°
41,2°C
Coldest m°
17,7°C
Elevation: 141 m on average (min 49 m, max 378 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
7,0
Org. C
5,2g/kg
Clay
19,8%
Sand
61,0%
Silt
19,3%
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)
Hydrology13 basins · 1 lakes · 21 rivers
Hydrology metrics for this exact territory
Stream length here
276,3km
Lake surface here
0,43km²
Basins crossed
13
Max stream order
5
Max drainage
38 258km²
Discharge in basins
8,1m³/s
Mean precip.
300mm/an
Mean T°
28,9°C
Moisture idx
-0,86
Mean runoff
80mm/an
Mean elev. (basins)
144m
Watersheds crossing here
- Bassin de Oued Ndoumellisub-area974,7 km²overlap931.80 km²26%
- Bassin de Oued Lahraj وادي لاهراجsub-area744,9 km²overlap615.56 km²17%
- Bassin de Oued Bounguelsub-area935,5 km²overlap604.94 km²17%
- Bassin de Karakorosub-area529 km²overlap317.24 km²9%
- Bassin de Oued Taghadésub-area354,4 km²overlap297.52 km²8%
- Bassin de Meïlaha وادي كركرsub-area376 km²overlap264.93 km²7%
- Bassin de Oued Karfasub-area1 104,5 km²overlap239.15 km²7%
- Bassin de Oued Karakoro وادي كاراكوروsub-area269,7 km²overlap145.84 km²4%
- Bassin de Mare Kankossa بركة كنكوصهsub-area224,8 km²overlap67.72 km²2%
Lakes (1, top by area)
Rivers / streams (21, ord ≥ 4)
- Oued Ndoumelliord 2len here34.67 km100%total35 km
- Oued Bounguelord 2len here32.46 km100%total33 km
- Oued Dar Dégalord 4len here28.79 km100%total29 km
- Meïlaha وادي كركرord 2len here26.33 km66%total40 km
- Oued Taghadéord 2len here24.40 km95%total26 km
- Oued Lahraj وادي لاهراجord 3len here22.41 km100%total22 km
- Oued Karakoro وادي كاراكوروord 5len here19.72 km51%total38 km
- Oued Lembéhgaord 1len here16.95 km100%total17 km
- Oued Tektakaord 2len here14.07 km100%total14 km
- Chelkha Dakhnaord 5len here12.29 km74%total17 km
- Oued Tartaigaord 3len here8.65 km100%total9 km
- Oued Lahrajord 3len here7.20 km97%total7 km
9 more river segmentssorted by Strahler order + length
- Mare Kankossa بركة كنكوصهord 5len here6.57 km40%total16 km
- Tourbaïgaord 3len here6.43 km100%total6 km
- Karakoroord 5len here4.77 km2%total220 km
- Oudene el Frasord 1len here3.90 km58%total7 km
- Oued Touriméord 3len here3.19 km5%total70 km
- Oued Karakoroord 5len here2.51 km14%total18 km
- Oued El Wedhanord 1len here0.63 km66%total1 km
- Oued Ouéringuelord 5len here0.34 km2%total15 km
- Oued Karakoro وادي كراكوروord 5len here0.00 km0%total13 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
5,6%
Pesticides
0,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)