Ontologia

Ruisseau· 3 segments

Oude Maas

Crosses 10 administrative regions : Albrandswaard, Barendrecht, Dordrecht, Hendrik-Ido-Ambacht, Hoeksche Waard +5

ruisseau

Total length

37km

Max discharge

20,8m³/s

Max Strahler

3

Segments matched

3

River geography10 admin regions · 0 communes

Parent watershed

hybas-20803811201423 km²

10 administrative regions crossed (GADM L2)

3 intersecting protected areas

  • NNN-ZH

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

  • Oude Maas

    IUCN IV

    Nature Conservation Act

  • Oude Maas

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

3 801 distinct species · 166 755 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 44 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 Oude Maas : 38 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 91 interactions GloBI sur 6 types (connectance 9.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
91
Connectance
0.092
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

37km

Max discharge

20,8m³/s

Max Strahler

3

Segments matched

3

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.