Ruisseau· 7 segments
Beemsterringvaart
Crosses 10 administrative regions : Alkmaar, Beemster, Edam-Volendam, Koggenland, Landsmeer +5
Total length
30km
Max discharge
2,2m³/s
Max Strahler
2
Segments matched
7
River geography10 admin regions · 0 communes
10 administrative regions crossed (GADM L2)
- BeemsterNoord-Holland · Netherlands9.3 kmin this dpt
- AlkmaarNoord-Holland · Netherlands6.2 kmin this dpt
- PurmerendNoord-Holland · Netherlands3.3 kmin this dpt
- WormerlandNoord-Holland · Netherlands2.9 kmin this dpt
- WaterlandNoord-Holland · Netherlands2.1 kmin this dpt
- Edam-VolendamNoord-Holland · Netherlands1.5 kmin this dpt
- KoggenlandNoord-Holland · Netherlands0.8 kmin this dpt
- UitgeestNoord-Holland · Netherlands0.0 kmin this dpt
- LandsmeerNoord-Holland · Netherlands0.0 kmin this dpt
- ZaanstadNoord-Holland · Netherlands0.0 kmin this dpt
12 intersecting protected areas
NNN-NH
IUCN Not AssignedNature Reserves owned by professional nature management organizations
Nature Conservation Act
Ilperveld, Varkensland, Oostzanerveld & Twiske
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Ilperveld, Varkensland, Oostzanerveld & Twiske
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Nature Conservation Act
Polder Zeevang
IUCN IVNature Conservation Act
Polder Zeevang
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Wormer- en Jisperveld & Kalverpolder
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Wormer- en Jisperveld & Kalverpolder
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3 more protected areassorted by area
Eilandspolder
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Eilandspolder
IUCN IVNature Conservation Act
Eilandspolder
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 7 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 625 distinct species · 25 451 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 50 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).
Indicateurs du tissu écologique
Tissu écologique de Beemsterringvaart : 46 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 4 bulles famille, 91 interactions GloBI documentées sur 5 types (connectance 7.4%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
30km
Max discharge
2,2m³/s
Max Strahler
2
Segments matched
7
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.