Ontologia

HydroBASINS lev08 watershed · #1080362340

Bassin de Tandjet

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 : Tamenghasset, Tazrouk

Pfafstetter: 14269296

Sub-basin area

850,1km²

Upstream area

850,1km²

Discharge

1,42m³/s

Mean elev.

1 701m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Oued Tahîfet261 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Ahaggar

    IUCN Not Applicable

    Cultural Park

    848.07 km² overlap

  • Gueltates d'Issakarassène

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    1.24 km² overlap

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

Species present

103 distinct species · 234 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

234 obs · 14 cellules
Obs. / cellule
≥ 51
49–50
26–48
13–25
< 13

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

Ecological tissue

Sample of 33 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 Tandjet : 24 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 3 types (connectance 6.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
36
Connectance
0.068
Patrimoniales
3
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°

19,5°C

Annual rain

53mm

Moisture idx (CMI)

-0,97

Runoff

47mm/an

PET

1 675mm

AET

43mm

Mean slope

6,9°

Water table

1 161cm

Forest

0%

Crops

0%

Urban

0%

Protected

100%

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