Ontologia

HydroBASINS lev08 watershed · #1080784170

Bassin de Bahr Al Arbou

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 1 administrative regions : Barh Azoum

EndorheicPfafstetter: 16293003

Sub-basin area

295,9km²

Upstream area

94 780,4km²

Discharge

50,26m³/s

Mean elev.

425m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Bahr Djoungouroumé101 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Bahr Salamat

    IUCN IV

    Faunal reserve

    208.34 km² overlap

  • Zakouma

    IUCN II

    National Park

    86.22 km² overlap

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

Species present

127 distinct species · 277 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

277 obs · 5 cellules
Obs. / cellule
≥ 185
185–184
67–184
14–66
< 14

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

Ecological tissue

Sample of 24 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 Bahr Al Arbou : 19 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 2 types (connectance 9.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
28
Connectance
0.093
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°

27,7°C

Annual rain

851mm

Moisture idx (CMI)

-0,61

Runoff

48mm/an

PET

2 161mm

AET

718mm

Mean slope

0,1°

Water table

11cm

Forest

0%

Crops

6%

Urban

0%

Protected

100%

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