Ontologia

HydroBASINS lev08 watershed · #2080000400

Bassin · #2080000400

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.

Coastal basinPfafstetter: 21101715

Sub-basin area

30,3km²

Upstream area

30,4km²

Discharge

0,2m³/s

Mean elev.

15m

Administrative coverage

0 dept-equivalent regions (GADM L2)

    5 intersecting protected areas

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

    Species present

    546 distinct species · 15 648 observations

    Source: GBIF Occurrence snapshot 2026-05-01.

    Densité d'observations

    15 648 obs · 1 cellules
    Obs. / cellule
    ≥ 15 648
    15 648–15 647
    15 648–15 647
    15 648–15 647
    < 15 648

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

    Ecological tissue

    Sample of 22 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 · #2080000400 : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

    Espèces affichées
    22
    Interactions affichées
    23
    Connectance
    0.100
    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°

    19,9°C

    Annual rain

    507mm

    Moisture idx (CMI)

    -0,62

    Runoff

    212mm/an

    PET

    1 321mm

    AET

    428mm

    Mean slope

    1,3°

    Water table

    64cm

    Forest

    4%

    Crops

    25%

    Urban

    77%

    Protected

    2%

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