Ontologia

HydroBASINS lev08 watershed · #1081067090

Bassin de Dja

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 : Dja et Lobo

Pfafstetter: 13249700

Sub-basin area

424,3km²

Upstream area

11 024,8km²

Discharge

141,83m³/s

Mean elev.

653m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Dja674 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Dja Faunal Reserve

    IUCN Not Applicable

    World Heritage Site (natural or mixed)

    129.26 km² overlap

  • Dja

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    126.08 km² overlap

  • Dja

    IUCN IV

    Wildlife Reserve

    66.22 km² overlap

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

Species present

279 distinct species · 593 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

593 obs · 10 cellules
Obs. / cellule
≥ 184
184–183
107–183
53–106
< 53

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 Dja : 15 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 2 types (connectance 11.1%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
18
Interactions affichées
17
Connectance
0.111
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°

23,7°C

Annual rain

1 627mm

Moisture idx (CMI)

0,03

Runoff

420mm/an

PET

1 574mm

AET

1 258mm

Mean slope

2,4°

Water table

56cm

Forest

93%

Crops

0%

Urban

0%

Protected

16%

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