Strenghtening the population of the German Tamarisk on the Ammer

    Solution ID
    Description of solution
    Summary (Challenges; Objectives)

    Like hardly any other plant species, the tamarisk (Myricaria germanica) characterizes the dynamics of a wild river. This is because the plant can only settle where gravel banks newly emerge during floods. After only a few years, willows and grasses displace the pioneer species. Every river engineering measure such as head storage, bedload barriers, hydroelectric power plants, bank protection or gravel extraction leads to a bedload deficit. The river deepens and narrows, gravel banks can no longer establish themselves. The still existing, higher gravel banks become overgrown with bushes and are no longer subject to the natural dynamics of erosion and restocking. In order to promote the tamarisk under these circumstances, the Bund Naturschutz extracts seeds from the few plants remaining at the Ammer river and rears about 250 plants. At the age of three to four years, they are planted in suitable locations and kept free from competition. A self-sustaining population is to be established from these mother plants. The conditions for this are still good at the Ammer river. The success of this measure is supported by a reduced gravel extraction, the allowing of bank breakages and a redynamization of the Ammer river. Several other wild river species, such as the common sandpiper, the little ringed plover or the gravel-bed grasshopper, all of which are Red List species in endangered wild river habitats, also benefit from this. The measure is part of the project Alpenfluss Landschaften.

    Location Latitude
    47.7738000000
    Location Longitude
    10.9889000000
    Keywords
    Ecosystem (s) impacted
    Riverfront
    Other challenges
    Biodiversity
    Exposition
    Exposed assets
    No Assets
    Is there population exposed?
    No
    Activity
    Are there jobs created in the nature-based sector?
    No
    Are there new employments in tourism sector, sport activities or recreational activites ?
    No
    Are there new activities in the tourism sector , sport activities or recreational activites?
    No
    Are there new/traditional activities that increased?
    I don't know
    International classification
    Sustainable development goals addressed
    SDG 14 – Life below water
    Actors
    Organizations involved in the implementation of the action

    Bund Naturschutz

    Temporal aspects
    Design life time of the action
    More than 10 years
    Implementation time of the action
    Don’t know
    Financial aspects
    Financing source
    Federal Ministry for the Evironment, Nature Conservation and Nuclear Safety, Federal Office for Nature Conservation, Bayerischer Naturschutzfonds, Bundesprogramm Biologische Vielfalt
    Others
    Participatory process
    No
    Is it possible to transpose this action in a different context?
    Yes, but difficult to transpose
    Risk reduction
    Hazard
    NA
    Exposure
    NA
    Vulnerability
    NA
    Feasibility
    Technical Feasibility
    NA
    Economic Feasibility
    NA
    Environment
    Water
    0
    Soil
    0
    Vegetation
    +
    Landscape
    0
    Biodiversity
    +
    Society
    Quality of Life
    0
    Community involvement
    0
    Landscape Heritage
    0
    Economy
    Revitalization
    0
    Local Economy
    0