Ontologia

HydroBASINS lev08 watershed · #1080721530

Bassin de Ngadda

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 8 administrative regions : Jere, Konduga, Mafa, Magumeri, Maiduguri +3

EndorheicPfafstetter: 16220630

Sub-basin area

1 995,8km²

Upstream area

10 942,5km²

Discharge

17,89m³/s

Mean elev.

305m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #1080717480198 km²

▲ Receives from 2 basins

8 dept-equivalent regions (GADM L2)

8 intersecting protected areas

  • Wuda Taye

    IUCN Not Reported

    Forest Reserve

    88.28 km² overlap

  • Limanti

    IUCN Not Reported

    Forest Reserve

    76.41 km² overlap

  • Azaya

    IUCN Not Reported

    Forest Reserve

    30.29 km² overlap

  • Femari

    IUCN Not Reported

    Forest Reserve

    14.63 km² overlap

  • Damakuli

    IUCN Not Reported

    Forest Reserve

    7.72 km² overlap

  • Bida (Bornu State)

    IUCN Not Reported

    Forest Reserve

    7.19 km² overlap

  • Geltur

    IUCN Not Reported

    Forest Reserve

    3.69 km² overlap

  • Fuchi

    IUCN Not Reported

    Forest Reserve

    3.11 km² overlap

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

Species present

160 distinct species · 736 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

736 obs · 18 cellules
Obs. / cellule
≥ 605
42–604
9–41
5–8
< 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 36 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 Ngadda : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 3 types (connectance 4.6%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
29
Connectance
0.046
Patrimoniales
1
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°

26,2°C

Annual rain

562mm

Moisture idx (CMI)

-0,72

Runoff

53mm/an

PET

2 037mm

AET

473mm

Mean slope

0,0°

Water table

8cm

Forest

0%

Crops

15%

Urban

13%

Protected

12%

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