Ontologia

HydroBASINS lev08 watershed · #2080059970

Bassin de De Geerelva

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: 25300119

Sub-basin area

265,1km²

Upstream area

265,2km²

Discharge

4,27m³/s

Mean elev.

338m

Administrative coverage

0 dept-equivalent regions (GADM L2)

    2 intersecting protected areas

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

    Species present

    615 distinct species · 5 177 observations

    Source: GBIF Occurrence snapshot 2026-05-01.

    Densité d'observations

    5 177 obs · 8 cellules
    Obs. / cellule
    ≥ 2 549
    2 549–2 548
    495–2 548
    433–494
    < 433

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

    Ecological tissue

    Sample of 40 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 De Geerelva : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 6 types (connectance 9.4%, filtre Serrano α=0.2). 22 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

    Espèces affichées
    42
    Interactions affichées
    81
    Connectance
    0.094
    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°

    -7,4°C

    Annual rain

    269mm

    Moisture idx (CMI)

    0,44

    Runoff

    461mm/an

    PET

    147mm

    AET

    131mm

    Mean slope

    15,2°

    Water table

    315cm

    Forest

    0%

    Crops

    0%

    Urban

    0%

    Protected

    6%

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