Ontologia

HydroBASINS lev08 watershed · #1080981940

Bassin de Birim

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 10 administrative regions : Achiase, Akyemansa, Asene-Manso-Akroso, Atiwa West, Ayensuano +5

Pfafstetter: 14510425

Sub-basin area

2 363,1km²

Upstream area

3 910km²

Discharge

40,51m³/s

Mean elev.

183m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Pra River415 km²

▲ Receives from 2 basins

10 dept-equivalent regions (GADM L2)

2 more

13 intersecting protected areas

  • Atewa Range

    IUCN III

    Forest Reserve

    74.42 km² overlap

  • Birim

    IUCN III

    Forest Reserve

    42.93 km² overlap

  • Nsuensa

    IUCN VI

    Forest Reserve

    36.73 km² overlap

  • Aiyaola

    IUCN VI

    Forest Reserve

    28.06 km² overlap

  • Atewa Range Extension

    IUCN VI

    Forest Reserve

    26.34 km² overlap

  • Esen Epam

    IUCN V

    Forest Reserve

    26.22 km² overlap

  • Esuboni

    IUCN III

    Forest Reserve

    16.19 km² overlap

  • Oboyow

    IUCN III

    Forest Reserve

    14.76 km² overlap

  • Birim Extension

    IUCN VI

    Forest Reserve

    10.99 km² overlap

4 more protected areas

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

Species present

1 606 distinct species · 13 082 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

13 082 obs · 61 cellules
Obs. / cellule
≥ 1 910
771–1 909
115–770
24–114
< 24

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

Ecological tissue

Sample of 41 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 Birim : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 38 interactions GloBI sur 4 types (connectance 4.6%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
38
Connectance
0.046
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°

25,8°C

Annual rain

1 627mm

Moisture idx (CMI)

0,02

Runoff

308mm/an

PET

1 593mm

AET

1 302mm

Mean slope

2,7°

Water table

108cm

Forest

11%

Crops

15%

Urban

7%

Protected

13%

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