Ontologia

HydroBASINS lev08 watershed · #2080059980

Bassin de Sassenelva

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.

Pfafstetter: 25300120

Sub-basin area

906,7km²

Upstream area

906,8km²

Discharge

13,63m³/s

Mean elev.

362m

Administrative coverage

0 dept-equivalent regions (GADM L2)

    3 intersecting protected areas

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

    Species present

    346 distinct species · 3 530 observations

    Source: GBIF Occurrence snapshot 2026-05-01.

    Densité d'observations

    3 530 obs · 24 cellules
    Obs. / cellule
    ≥ 879
    458–878
    133–457
    10–132
    < 10

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

    Ecological tissue

    Sample of 36 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 Sassenelva : 20 espèces reliées par 75 interactions GloBI sur 4 types (connectance 11.3%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

    Espèces affichées
    37
    Interactions affichées
    75
    Connectance
    0.113
    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°

    -7,3°C

    Annual rain

    286mm

    Moisture idx (CMI)

    0,49

    Runoff

    436mm/an

    PET

    142mm

    AET

    128mm

    Mean slope

    11,5°

    Water table

    221cm

    Forest

    0%

    Crops

    0%

    Urban

    0%

    Protected

    47%

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