Ontologia

HydroLAKES lake · #15

Chad

Natural lakeChadAfrica 282 m

Surface area

18 751,52km²

Avg depth

0,1m

Volume

2 400km³

Shoreline

817km

Administrative coverage

Parent watershed

hybas-10806929801344 km² · upstream 1344 km²

9 dept-equivalent regions (GADM L2)

  • Mamdi
    Lac · Chad
    9491.58 km²
    50.8% of lake
  • Lake Chad
    Borno · Nigeria
    4093.47 km²
    21.9% of lake
  • N'Guigmi
    Diffa · Niger
    2168.98 km²
    11.6% of lake
  • Logone et Chari
    Extrême-Nord · Cameroon
    1854.31 km²
    9.9% of lake
  • Diffa
    Diffa · Niger
    662.95 km²
    3.5% of lake
  • Haraze Al Biar
    Hadjer-Lamis · Chad
    330.51 km²
    1.8% of lake

3 intersecting protected areas

  • Lake Chad Wetlands in Nigeria

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    4092.29 km² overlap

  • Lac Tchad

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    2817.87 km² overlap

  • Lac Tchad

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    1810.72 km² overlap

Computed live · HydroLAKES × GADM × WDPA · cached after first hit.

Species present

525 distinct species · 1 862 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 862 obs · 116 cellules
Obs. / cellule
≥ 119
34–118
10–33
6–9
< 6

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

Ecological tissue

Sample of 27 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 Chad : 24 espèces reliées par 22 interactions GloBI sur 3 types (connectance 6.3%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
22
Connectance
0.063
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Lake statistics (HydroLAKES)

Surface

18 751,52km²

Avg depth

0,1m

Volume

2 400,000km³

Watershed

980 212km²

Shoreline

817,0km

Shore dev. idx

1,68

Residence time

26days

Elevation

282m

HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.