Ontologia

HydroBASINS lev08 watershed · #1080026720

Bassin de Bulok 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 11 administrative regions across 2 countries : Banjul, Bignona, Foni Bintang Karanai, Foni Brefet, Foni Kansala +6

Coastal basinPfafstetter: 14579905

Sub-basin area

1 125,2km²

Upstream area

1 125,2km²

Discharge

0,94m³/s

Mean elev.

16m

Administrative coverage

11 dept-equivalent regions (GADM L2)

3 more

11 intersecting protected areas

  • Tanbi

    IUCN II

    National Park

    69.48 km² overlap

  • Tanbi Wetland Complex

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    64.66 km² overlap

  • Berefet

    IUCN VI

    Community Protected Area

    9.80 km² overlap

  • Tanji

    IUCN V

    Bird Reserve

    6.00 km² overlap

  • Faraba Banta

    IUCN VI

    Community Protected Area

    5.21 km² overlap

  • Foret des Narangs

    IUCN Not Reported

    Forest Reserve

    4.88 km² overlap

  • Abuko

    IUCN Ia

    Nature Reserve

    2.15 km² overlap

  • Bolong Fenyo

    IUCN VI

    Community Wildlife Reserve

    1.61 km² overlap

  • Kassange

    IUCN VI

    Community Protected Area

    1.33 km² overlap

2 more protected areas

  • Kanuma

    IUCN VI

    Community Protected Area

    0.47 km² overlap

  • Bintang

    IUCN VI

    Community Protected Area

    0.00 km² overlap

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

Species present

1 683 distinct species · 314 722 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

314 722 obs · 31 cellules
Obs. / cellule
≥ 54 382
39 143–54 381
7 724–39 142
1 469–7 723
< 1 469

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

Ecological tissue

Sample of 16 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 Bulok Bolon : 13 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 13 interactions GloBI sur 2 types (connectance 9.6%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
17
Interactions affichées
13
Connectance
0.096
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°

26,2°C

Annual rain

924mm

Moisture idx (CMI)

-0,49

Runoff

145mm/an

PET

1 818mm

AET

701mm

Mean slope

0,4°

Water table

44cm

Forest

28%

Crops

52%

Urban

26%

Protected

7%

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