Ontologia

HydroBASINS lev08 watershed · #1080169280

Bassin de Oued Massa ⴰⵙⵙⵉⴼ ⵏ ⵎⴰⵙⵙⴰ وادي ماسة

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 : Chtouka-Aït Baha, Tiznit

Pfafstetter: 15150408

Sub-basin area

1 344,4km²

Upstream area

1 344,4km²

Discharge

4,03m³/s

Mean elev.

1 209m

Administrative coverage

Hydrographic chain

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

6 intersecting protected areas

  • Réserve de Biosphère de l'Arganeraie (RBA)

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    889.69 km² overlap

  • Ait Ahmed

    IUCN Not Applicable

    Permanent Hunting Reserve

    88.59 km² overlap

  • Jbel Kest

    IUCN Not Applicable

    Permanent Hunting Reserve

    83.53 km² overlap

  • Tanalt

    IUCN Not Applicable

    Permanent Hunting Reserve

    70.00 km² overlap

  • Sidi Yacoub

    IUCN Not Applicable

    Permanent Hunting Reserve

    25.10 km² overlap

  • Ait Abdellah

    IUCN Not Applicable

    Permanent Hunting Reserve

    1.64 km² overlap

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

Species present

843 distinct species · 3 921 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 921 obs · 36 cellules
Obs. / cellule
≥ 601
376–600
111–375
39–110
< 39

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

Ecological tissue

Sample of 34 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 Massa ⴰⵙⵙⵉⴼ ⵏ ⵎⴰⵙⵙⴰ وادي ماسة : 27 espèces reliées par 48 interactions GloBI sur 5 types (connectance 8.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
48
Connectance
0.081
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°

15,4°C

Annual rain

262mm

Moisture idx (CMI)

-0,80

Runoff

65mm/an

PET

1 334mm

AET

223mm

Mean slope

14,5°

Water table

776cm

Forest

0%

Crops

0%

Urban

0%

Protected

17%

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