Ontologia

HydroBASINS lev08 watershed · #1080720160

Bassin · #1080720160

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 : Lake Chad, Mafa, Marte, Monguno

EndorheicPfafstetter: 16220422

Sub-basin area

1 717,9km²

Upstream area

1 717,9km²

Discharge

2,97m³/s

Mean elev.

293m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #108071565087 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

5 intersecting protected areas

  • Lake Chad Wetlands in Nigeria

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    157.13 km² overlap

  • Madagine

    IUCN Not Reported

    Forest Reserve

    58.61 km² overlap

  • Mawulli

    IUCN Not Reported

    Forest Reserve

    11.18 km² overlap

  • Limanti

    IUCN Not Reported

    Forest Reserve

    4.07 km² overlap

  • Zaga

    IUCN Not Reported

    Forest Reserve

    3.76 km² overlap

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

Species present

61 distinct species · 104 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

104 obs · 11 cellules
Obs. / cellule
≥ 41
19–40
8–18
5–7
< 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 2 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 · #1080720160 : 1 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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°

26,7°C

Annual rain

500mm

Moisture idx (CMI)

-0,76

Runoff

50mm/an

PET

2 065mm

AET

420mm

Mean slope

0,0°

Water table

6cm

Forest

0%

Crops

13%

Urban

1%

Protected

13%

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