Ontologia

HydroBASINS lev08 watershed · #1080681190

Bassin de Gambia River

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 13 administrative regions across 2 countries : Bounkiling, Central Baddibu, Jarra Central, Jarra East, Jarra West +8

Pfafstetter: 14580130

Sub-basin area

1 375,4km²

Upstream area

68 567km²

Discharge

136,26m³/s

Mean elev.

22m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Gambia River515 km²

▲ Receives from 2 basins

13 dept-equivalent regions (GADM L2)

5 more

5 intersecting protected areas

  • Baobolong

    IUCN VI

    Wetland Reserve

    66.89 km² overlap

  • Baobolon Wetland Reserve

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    22.94 km² overlap

  • Kiang West

    IUCN II

    National Park

    19.50 km² overlap

  • Bambako

    IUCN VI

    Community Protected Area

    10.41 km² overlap

  • Barrow Kunda

    IUCN VI

    Community Protected Area

    3.64 km² overlap

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

Species present

1 085 distinct species · 79 958 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

79 958 obs · 38 cellules
Obs. / cellule
≥ 44 864
2 958–44 863
614–2 957
242–613
< 242

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

Ecological tissue

Sample of 25 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 Gambia River : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 3 types (connectance 6.6%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
23
Connectance
0.066
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°

27,5°C

Annual rain

751mm

Moisture idx (CMI)

-0,63

Runoff

74mm/an

PET

2 042mm

AET

634mm

Mean slope

0,6°

Water table

70cm

Forest

3%

Crops

28%

Urban

2%

Protected

2%

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