Ontologia

HydroBASINS lev08 watershed · #1080875680

Bassin de Rokel

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 4 administrative regions : Bombali, Koinadugu, Port Loko, Tonkolili

Pfafstetter: 14577385

Sub-basin area

3 125,8km²

Upstream area

6 625,3km²

Discharge

340,19m³/s

Mean elev.

172m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rokel261 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Mamunta-Mayossor

    IUCN Not Reported

    Forest Reserve

    304.51 km² overlap

  • Farangbaia

    IUCN Not Reported

    Forest Reserve

    128.89 km² overlap

  • Malal Hills

    IUCN Not Reported

    Forest Reserve

    8.48 km² overlap

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

Species present

719 distinct species · 3 521 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 521 obs · 70 cellules
Obs. / cellule
≥ 650
124–649
25–123
15–24
< 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 23 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 Rokel : 23 espèces + 0 bulles famille, 18 interactions GloBI documentées sur 2 types (connectance 7.1%, filtre Serrano α=0.2).

Espèces affichées
23
Interactions affichées
18
Connectance
0.071
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°

26,3°C

Annual rain

2 897mm

Moisture idx (CMI)

0,40

Runoff

1 947mm/an

PET

1 736mm

AET

1 227mm

Mean slope

3,7°

Water table

143cm

Forest

37%

Crops

18%

Urban

4%

Protected

1%

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