Ontologia

HydroBASINS lev08 watershed · #2080023390

Bassin de Prinses Margrietkanaal

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.

Crosses 11 administrative regions : Achtkarspelen, Dantumadeel, De Fryske Marren, Heerenveen, IJsselmeer +6

54% lakePfafstetter: 23270304

Sub-basin area

889,5km²

Upstream area

889,6km²

Discharge

16,78m³/s

Mean elev.

-1m

Administrative coverage

11 dept-equivalent regions (GADM L2)

3 more

24 intersecting protected areas

  • NNN-FR

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

    116.78 km² overlap

  • De Alde Feanen

    IUCN II

    National Park

    33.74 km² overlap

  • Sneekermeergebied

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    22.85 km² overlap

  • Sneekermeergebied

    IUCN IV

    Nature Conservation Act

    22.79 km² overlap

  • Sneekermeergebied

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    22.79 km² overlap

  • Alde Feanen

    IUCN II

    Wetland of International Importance (Ramsar Site)

    21.24 km² overlap

  • Alde Feanen

    IUCN IV

    Nature Conservation Act

    21.24 km² overlap

  • Alde Feanen

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    21.24 km² overlap

  • Alde Feanen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    21.24 km² overlap

15 more protected areas

  • Van Oordt's Mersken

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    8.42 km² overlap

  • Van Oordt\'s Mersken

    IUCN IV

    Nature Conservation Act

    8.42 km² overlap

  • Van Oordt's Mersken

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    5.36 km² overlap

  • Deelen

    IUCN IV

    Nature Conservation Act

    5.14 km² overlap

  • Deelen

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    5.14 km² overlap

  • Deelen

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    5.14 km² overlap

  • Witte en Zwarte Brekken

    IUCN IV

    Nature Conservation Act

    4.33 km² overlap

  • Witte en Zwarte Brekken

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    4.33 km² overlap

  • Wijnjeterper Schar

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.70 km² overlap

  • Wijnjeterper Schar

    IUCN IV

    Nature Conservation Act

    1.70 km² overlap

  • Groote Wielen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.13 km² overlap

  • Groote Wielen

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.13 km² overlap

  • Groote Wielen

    IUCN IV

    Nature Conservation Act

    0.13 km² overlap

  • Bakkeveense Duinen

    IUCN IV

    Nature Conservation Act

    0.05 km² overlap

  • Bakkeveense Duinen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.05 km² overlap

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

Species present

9 588 distinct species · 1 483 360 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 483 360 obs · 30 cellules
Obs. / cellule
≥ 192 790
112 450–192 789
70 858–112 449
36 835–70 857
< 36 835

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

Ecological tissue

Sample of 39 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 Prinses Margrietkanaal : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 111 interactions GloBI sur 5 types (connectance 14.2%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
111
Connectance
0.142
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°

8,8°C

Annual rain

789mm

Moisture idx (CMI)

0,21

Runoff

476mm/an

PET

627mm

AET

515mm

Mean slope

0,1°

Water table

7cm

Forest

3%

Crops

9%

Urban

13%

Protected

9%

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