Ontologia

HydroBASINS lev08 watershed · #1081073460

Bassin de Ndja

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 : Haut Nyong

Pfafstetter: 13249578

Sub-basin area

318,3km²

Upstream area

318,3km²

Discharge

4,02m³/s

Mean elev.

639m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Dja63 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Dja

    IUCN IV

    Wildlife Reserve

    316.87 km² overlap

  • Dja Faunal Reserve

    IUCN Not Applicable

    World Heritage Site (natural or mixed)

    316.87 km² overlap

  • Dja

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    316.87 km² overlap

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

Species present

132 distinct species · 185 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

185 obs · 2 cellules
Obs. / cellule
≥ 147
147–146
147–146
147–146
< 147

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

Ecological tissue

Sample of 18 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 Ndja : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 12 interactions GloBI sur 3 types (connectance 7.8%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
18
Interactions affichées
12
Connectance
0.078
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°

23,5°C

Annual rain

1 629mm

Moisture idx (CMI)

0,02

Runoff

410mm/an

PET

1 590mm

AET

1 266mm

Mean slope

2,8°

Water table

98cm

Forest

99%

Crops

0%

Urban

0%

Protected

100%

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