Ontologia

HydroBASINS lev08 watershed · #1080148880

Bassin de Oued Alnif

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 2 administrative regions : Errachidia, Ouarzazate

EndorheicPfafstetter: 15430624

Sub-basin area

3 179,2km²

Upstream area

3 179,4km²

Discharge

2,37m³/s

Mean elev.

1 006m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Oued el Ma'der343 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

282 distinct species · 2 553 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 553 obs · 64 cellules
Obs. / cellule
≥ 551
124–550
14–123
4–13
< 4

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 20 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 Bassin de Oued Alnif : 14 espèces reliées par 29 interactions GloBI sur 2 types (connectance 15.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
29
Connectance
0.153
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

19,6°C

Annual rain

92mm

Moisture idx (CMI)

-0,95

Runoff

44mm/an

PET

1 719mm

AET

75mm

Mean slope

5,6°

Water table

591cm

Forest

0%

Crops

0%

Urban

0%

Protected

74%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)