Governorate · yem
Abyan
Yemen
Species observed
493
Observations
1 467
Area
16 309km²
Ecological tissue
Sample of 26 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 Abyan : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 20 interactions GloBI sur 3 types (connectance 6.2%, filtre Serrano α=0.2). 4 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
493 distinct species · 1 467 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
25,4°C
Annual rain
222mm
Warmest m°
32,9°C
Coldest m°
16,5°C
Elevation: 681 m on average (min -91 m, max 2 291 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
8,0
Org. C
10,5g/kg
Clay
19,6%
Sand
44,3%
Silt
36,2%
Average over 0-30 cm. Per-depth details in expert panel.
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)
Hydrology36 basins · 0 lakes · 19 rivers
Hydrology metrics for this exact territory
Stream length here
713,8km
Basins crossed
36
Max stream order
5
Max drainage
7 798km²
Discharge in basins
17,2m³/s
Mean precip.
87mm/an
Mean T°
23,5°C
Moisture idx
-0,95
Mean runoff
27mm/an
Mean elev. (basins)
732m
Watersheds crossing here
- Bassin de وادي أحورsub-area3 943,8 km²overlap3353.54 km²21%
- Bassin de وادي حسّانsub-area3 261,8 km²overlap2840.76 km²17%
- Basin #79870sub-area1 164,2 km²overlap1145.98 km²7%
- Basin #09170sub-area1 169,8 km²overlap1144.67 km²7%
- Basin #79640sub-area1 149 km²overlap833.19 km²5%
- Bassin de وادي بناsub-area1 274,8 km²overlap566.93 km²3%
- Basin #79930sub-area574,6 km²overlap560.98 km²3%
- Bassin de وادي ضراءsub-area1 278,3 km²overlap550.97 km²3%
- Bassin de سيلة ربوsub-area2 497,4 km²overlap499.89 km²3%
27 more basinssorted by overlap
- Bassin de وادي الرقبsub-area519,3 km²overlap470.18 km²3%
- Basin #79750sub-area470,2 km²overlap461.37 km²3%
- Basin #79830sub-area437,9 km²overlap429.02 km²3%
- Bassin de وادي أحورsub-area410,8 km²overlap409.26 km²3%
- Basin #09360sub-area326,8 km²overlap325.61 km²2%
- Bassin de وادي أحورsub-area277,2 km²overlap276.09 km²2%
- Basin #09400sub-area261,4 km²overlap260.48 km²2%
- Basin #79820sub-area260,1 km²overlap258.99 km²2%
- Basin #79720sub-area252,2 km²overlap251.22 km²2%
- Basin #79740sub-area247,5 km²overlap246.60 km²2%
- Basin #79630sub-area673,2 km²overlap223.95 km²1%
- Basin #79860sub-area216,1 km²overlap215.30 km²1%
- Basin #79920sub-area204,2 km²overlap203.40 km²1%
- Basin #79790sub-area170,4 km²overlap168.34 km²1%
- Basin #09110sub-area156,1 km²overlap155.53 km²1%
- Basin #09160sub-area131,9 km²overlap131.40 km²1%
- Bassin de وادي معربةsub-area915,9 km²overlap98.33 km²1%
- Bassin de وادي خورةsub-area490,4 km²overlap59.10 km²0%
- Basin #79960sub-area56,7 km²overlap53.74 km²0%
- Bassin de وادي يهرsub-area266,2 km²overlap45.42 km²0%
- Bassin de وادي جارانsub-area117,6 km²overlap41.87 km²0%
- Basin #79730sub-area19,7 km²overlap17.93 km²0%
- Bassin de وادي خورةsub-area372,4 km²overlap6.10 km²0%
- Bassin de Wādī Warazānsub-area1 102,6 km²overlap2.00 km²0%
- Bassin de Wādī Warazānsub-area3 286,2 km²overlap0.53 km²0%
- Bassin de وادي هدىsub-area905 km²overlap0.23 km²0%
- Bassin de وادي بناsub-area718,7 km²overlap0.00 km²0%
Rivers / streams (19, ord ≥ 4)
- وادي أحورord 5len here221.44 km99%total223 km
- وادي حسّانord 4len here178.43 km100%total179 km
- وادي الرقبord 2len here75.06 km100%total75 km
- وادي بناord 5len here68.17 km14%total490 km
- وادي نخعينord 2len here44.64 km100%total45 km
- وادي ضراءord 4len here24.92 km36%total70 km
- وادي جودةord 3len here15.93 km100%total16 km
- وادي عيّانord 2len here15.43 km100%total15 km
- وادي مساحرord 5len here13.60 km89%total15 km
- وادي ثنهةord 2len here8.80 km100%total9 km
- شعب المعقابord 1len here8.62 km100%total9 km
- سيلة كلدord 2len here8.09 km100%total8 km
7 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
3,9%
Pesticides
0,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)