Ruisseau· 2 segments

Marka

Crosses 2 administrative regions : Cloppenburg, Emsland

ruisseau

Total length

29km

Max discharge

1,8m³/s

Max Strahler

Segments matched

River geography2 admin regions · 0 communes

Parent watershed

hybas-20803465602212 km²

2 administrative regions crossed (GADM L2)

Cloppenburg
Niedersachsen · Germany
17.0 km
in this dpt
Emsland
Niedersachsen · Germany
3.9 km
in this dpt

12 intersecting protected areas

Waldgebiete auf dem Hümmling
IUCN V
Landscape Protection Area
Niederungen der Süd- und Mittelradde und der Marka
IUCN Not Reported
Special Protection Area (Birds Directive)
Mittelradde - Marka -Südradde
IUCN V
Landscape Protection Area
Mittelradde/Marka
IUCN V
Landscape Protection Area
Markatal mit Bockholter Dose
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Markatal zwischen Markhausen und Ellerbrock
IUCN V
Landscape Protection Area
Bockholter Dose
IUCN IV
Nature Reserve
Markatal
IUCN IV
Nature Reserve
Schwaneburger Moor
IUCN IV
Nature Reserve

3 more protected areassorted by area

Marka zwischen Markhausen und Delschloot
IUCN IV
Nature Reserve
Markatal bei Bischofsbrück
IUCN IV
Nature Reserve
Oberlauf der Marka/Mittelradde
IUCN IV
Nature Reserve

1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

640 distinct species · 1 502 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 33 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Marka : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 100 interactions GloBI sur 6 types (connectance 15.0%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

100

Connectance

0.150

Patrimoniales

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)