Ontologia

HydroBASINS lev08 watershed · #1080754730

Bassin de Logone

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 3 administrative regions across 2 countries : Logone et Chari, Mayo-Boneye, N'Djamena

EndorheicPfafstetter: 16260310

Sub-basin area

807,7km²

Upstream area

75 727,5km²

Discharge

276,95m³/s

Mean elev.

306m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Logone1219 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Waza Logone Floodplain

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    277.99 km² overlap

  • Mandelia

    IUCN IV

    Faunal Reserve

    64.99 km² overlap

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

Species present

255 distinct species · 846 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

846 obs · 13 cellules
Obs. / cellule
≥ 651
112–650
20–111
5–19
< 5

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

Ecological tissue

Sample of 30 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 Logone : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 3 types (connectance 6.0%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
28
Connectance
0.060
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°

28,2°C

Annual rain

642mm

Moisture idx (CMI)

-0,70

Runoff

62mm/an

PET

2 107mm

AET

541mm

Mean slope

0,0°

Water table

2cm

Forest

0%

Crops

2%

Urban

0%

Protected

8%

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