Ontologia

HydroBASINS lev08 watershed · #1080869270

Bassin de Black Volta

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 3 administrative regions : Central Gonja, Kintampo North, West Gonja

Pfafstetter: 14450301

Sub-basin area

622,7km²

Upstream area

147 106,7km²

Discharge

375,67m³/s

Mean elev.

128m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Black Volta134 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Yakombo

    IUCN VI

    Forest Reserve

    120.51 km² overlap

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

Species present

237 distinct species · 2 198 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 198 obs · 15 cellules
Obs. / cellule
≥ 1 089
352–1 088
138–351
15–137
< 15

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

Ecological tissue

Sample of 42 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 Black Volta : 38 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 2 types (connectance 4.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
39
Connectance
0.045
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°

27,8°C

Annual rain

1 109mm

Moisture idx (CMI)

-0,40

Runoff

161mm/an

PET

1 837mm

AET

938mm

Mean slope

0,6°

Water table

128cm

Forest

61%

Crops

12%

Urban

2%

Protected

6%

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