Ontologia

HydroBASINS lev08 watershed · #1080025950

Bassin de Djarga

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 across 2 countries : Bedanda, Boké, Cacine, Catio

Coastal basinPfafstetter: 14577901

Sub-basin area

1 774,9km²

Upstream area

1 774,9km²

Discharge

3,45m³/s

Mean elev.

12m

Administrative coverage

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Iles Tristao

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    612.30 km² overlap

  • Cantanhez Forest

    IUCN Not Reported

    National Park

    438.59 km² overlap

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

Species present

440 distinct species · 1 803 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 803 obs · 43 cellules
Obs. / cellule
≥ 544
92–543
20–91
7–19
< 7

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

Ecological tissue

Sample of 26 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 Djarga : 23 espèces reliées par 21 interactions GloBI sur 3 types (connectance 6.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
21
Connectance
0.060
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°

27,4°C

Annual rain

2 580mm

Moisture idx (CMI)

0,32

Runoff

1 269mm/an

PET

1 755mm

AET

978mm

Mean slope

0,9°

Water table

32cm

Forest

79%

Crops

2%

Urban

2%

Protected

27%

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