Ontologia

HydroBASINS lev08 watershed · #1080660990

Bassin de Nianija Bolon

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 2 administrative regions : Koungheul, Koupentoum

Pfafstetter: 14580167

Sub-basin area

497,2km²

Upstream area

2 483,5km²

Discharge

2,7m³/s

Mean elev.

41m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Nianija Bolon194 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Khogue

    IUCN Not Reported

    Forest Reserve

    40.94 km² overlap

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

Species present

123 distinct species · 816 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

816 obs · 8 cellules
Obs. / cellule
≥ 481
481–480
80–480
29–79
< 29

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 Bassin de Nianija Bolon : 25 espèces reliées par 20 interactions GloBI sur 3 types (connectance 5.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
20
Connectance
0.057
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°

27,4°C

Annual rain

682mm

Moisture idx (CMI)

-0,67

Runoff

31mm/an

PET

2 081mm

AET

574mm

Mean slope

0,4°

Water table

79cm

Forest

0%

Crops

20%

Urban

0%

Protected

8%

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