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1.2.1. Brachsmen- und Barbenregion (Epipotamon)

Ranunculion fluitantis

Description

Phyonomy and Ecology (© Delarze & al. 2015)

Das Epipotamon entspricht dem Unterlauf und dem unteren Mittellauf von Fliessgewässern. Meist handelt es sich um breite und tiefgründige Wasserläufe mit gleichmässiger Fliessgeschwindigkeit oder um Kanäle in tiefen Lagen. Die Ablagerungen sind feinkörnig und beweglich, zumindest entlang den Ufern. Sofern vorhanden, sind die Pflanzen fest verwurzelt, haben kleine oder grasartige Blätter («Riemenblätter») und fluten im Wasser. Der weissblütige Wasserhahnenfuss ist wohl das auffallendste Element dieses Lebensraums. Das Wasser dieser Fliessstrecken ist manchmal durch organische Schwebstoffe getrübt und kann vorübergehend Sauerstoffmangel aufweisen. Im Hochsommer übersteigt die Wassertemperatur häufig 15 °C.

Distribution map

  • Calculation method

    Current distribution: Weighted sum (number of characteristic and frequent species) per hectare based on current observations. Reported characteristic species are given a weighting of 10, while others are counted without weighting. The habitat is considered to be present in a grid cell (5 x 5 km) if it contains at least one hectare with a minimum value of 11 points.

    Potential distribution: Weighted sum (number of characteristic and frequent species) per hectare based on species distribution models. The calculation strategy is the same as for current distribution, but maps derived from species distribution models are used instead of current observations.

List of species

bold Dominant species, influencing the appearance of the habitat
Character species Character species
Less strictly linked to a specific habitat Less strictly linked to a specific habitat


Scientific name English name
Character species Berula erecta (Huds.) CovilleKleiner Merk
Character species Callitriche hamulata W. D. J. KochHakiger Wasserstern
Character species Callitriche obtusangula Le GallStumpfkantiger Wasserstern
Character species Groenlandia densa (L.) Fourr.Fischkraut
Character species Nasturtium officinale R. Br.Echte Brunnenkresse
Character species Potamogeton helveticus (G. Fisch.) W. KochSchweizer Laichkraut
Character species Potamogeton nodosus Poir.Flutendes Laichkraut
Character species Ranunculus fluitans Lam.Flutender Wasserhahnenfuss
Character species Sparganium emersum RehmannEinfacher Igelkolben
Character species Veronica beccabunga L.Bachbungen-Ehrenpreis
Less strictly linked to a specific habitat Callitriche cophocarpa Sendtn.Stumpffrüchtiger Wasserstern
Less strictly linked to a specific habitat Callitriche stagnalis Scop.Teich-Wasserstern
Less strictly linked to a specific habitat Elodea canadensis Michx.NKanadische Wasserpest
Less strictly linked to a specific habitat Myriophyllum alterniflorum DC.Armblütiges Tausendblatt
Less strictly linked to a specific habitat Myriophyllum spicatum L.Ähriges Tausendblatt
Less strictly linked to a specific habitat Potamogeton coloratus Hornem.Gefärbtes Laichkraut
Less strictly linked to a specific habitat Ranunculus trichophyllus ChaixHaar-Wasserhahnenfuss

Status

Status according to the habitat priority list at the national level

National Priority K: no national priority
Need to take action 2:
International responsibility K: none

Status on national Red List 2016

IUCN status:   Near threatened

LC: Non menacé

Additional information

IUCN criteria: CD3b

  • Legend
    COCollapsed
    CRCritically Endangered
    ENEndangered
    VUVulnerable
    NTNear Threatened
    LCLeast Concern

Legal protection (NCHO appendix 1)

Natural habitat worthy of protection

Regeneration status 2016

Regeneration class 2: 5 to 10 years