Ontologia

HydroBASINS lev08 watershed · #1080579450

Bassin de Ferlo

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 2 administrative regions : Dagana, Louga

139% lakePfafstetter: 14620130

Sub-basin area

550,7km²

Upstream area

43 502,2km²

Discharge

42,34m³/s

Mean elev.

13m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Taouey850 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

232 distinct species · 4 443 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 443 obs · 16 cellules
Obs. / cellule
≥ 1 786
813–1 785
142–812
91–141
< 91

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

Ecological tissue

Sample of 28 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 Ferlo : 24 espèces reliées par 23 interactions GloBI sur 4 types (connectance 6.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
23
Connectance
0.061
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°

26,8°C

Annual rain

272mm

Moisture idx (CMI)

-0,86

Runoff

1mm/an

PET

1 982mm

AET

227mm

Mean slope

0,2°

Water table

91cm

Forest

1%

Crops

7%

Urban

0%

Protected

14%

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