Ontologia

HydroBASINS lev08 watershed · #1080981750

Bassin de 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 : Ada East, Ada West, South Tongu

3% lakePfafstetter: 14410301

Sub-basin area

131,3km²

Upstream area

409 209,2km²

Discharge

989,29m³/s

Mean elev.

8m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Volta130 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

66 distinct species · 112 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

112 obs · 4 cellules
Obs. / cellule
≥ 49
49–48
37–48
37–36
< 37

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

Ecological tissue

Sample of 17 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 Volta : 16 espèces reliées par 13 interactions GloBI sur 2 types (connectance 9.6%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
17
Interactions affichées
13
Connectance
0.096
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°

27,0°C

Annual rain

911mm

Moisture idx (CMI)

-0,38

Runoff

142mm/an

PET

1 478mm

AET

772mm

Mean slope

0,4°

Water table

39cm

Forest

10%

Crops

84%

Urban

13%

Protected

0%

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