Ontologia

HydroBASINS lev08 watershed · #1080864620

Bassin de Arba Dima

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 4 administrative regions : Afar Zone 3, Arsi, Mirab Hararghe, Misraq Shewa

EndorheicPfafstetter: 11571940

Sub-basin area

1 814,5km²

Upstream area

1 814,5km²

Discharge

3,39m³/s

Mean elev.

2 002m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Awash1055 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Arsi Mountains

    IUCN II

    National Park

    882.25 km² overlap

  • Dindin

    IUCN VI

    Controlled Hunting Area

    116.25 km² overlap

  • Arba Gugu

    IUCN VI

    Controlled Hunting Area

    12.54 km² overlap

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

Species present

52 distinct species · 165 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

165 obs · 17 cellules
Obs. / cellule
≥ 39
39–38
7–38
4–6
< 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 4 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 Arba Dima : 3 espèces reliées par 3 interactions GloBI sur 2 types (connectance 50.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
4
Interactions affichées
3
Connectance
0.500
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°

19,1°C

Annual rain

967mm

Moisture idx (CMI)

-0,42

Runoff

62mm/an

PET

1 707mm

AET

815mm

Mean slope

10,0°

Water table

518cm

Forest

0%

Crops

16%

Urban

1%

Protected

53%

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