Ontologia

HydroBASINS lev08 watershed · #1080047550

Bassin · #1080047550

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 8 administrative regions : Beni Snous, El Aricha, El Gor, Kasdir, Makman Ben Amer +3

Endorheic 5% lakePfafstetter: 15303000

Sub-basin area

1 678,1km²

Upstream area

1 678,1km²

Discharge

2,83m³/s

Mean elev.

1 182m

Administrative coverage

8 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Dayet El Ferd

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    24.73 km² overlap

  • Tlemcen

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    2.72 km² overlap

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

Species present

138 distinct species · 3 408 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 408 obs · 36 cellules
Obs. / cellule
≥ 1 774
121–1 773
42–120
18–41
< 18

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

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin · #1080047550 : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 42 interactions GloBI sur 2 types (connectance 12.9%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
42
Connectance
0.129
Patrimoniales
2
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°

13,7°C

Annual rain

436mm

Moisture idx (CMI)

-0,64

Runoff

36mm/an

PET

1 212mm

AET

372mm

Mean slope

1,5°

Water table

465cm

Forest

0%

Crops

1%

Urban

0%

Protected

0%

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