Essays about: "ash dieback disease"

Showing result 6 - 10 of 15 essays containing the words ash dieback disease.

  1. 6. Vegetationsförändringar i två öländska lundar under 30 år

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Ida Hansson; [2018]
    Keywords : Alm-askskog; Fältskikt; Ulmus glabra; Markvegetation; Fraxinus excelsior; Almsjuka; Askskottsjuka; Ulmus minor; Vegetationsförändringar;

    Abstract : Många skyddade skogar i Europa har förändrats sedan den tidigare markanvändningen upphört. Skogar som förr var betade eller användes till slåtter har växt igen och blivit slutna skogar. READ MORE

  3. 7. Development of expression markers for reduced susceptibility in Fraxinus excelsior

    University essay from SLU/Dept. of Forest Mycology and Plant Pathology

    Author : Matilda Stein Åslund; [2018]
    Keywords : Fraxinus excelsior; European ash; Common ash; Molecular markers; Expression markers; Ash dieback disease; Hymenoschyphus fraxineus;

    Abstract : Common ash (Fraxinus excelsior) extends throughout temperate Europe, and in southern and central Sweden it is one of the most common broad-leaved deciduous trees. It is economically valuable thanks to its elastic, hard and pressure-resistant wood, and pollarded ash trees provide a cultural heritage in many European landscapes. READ MORE

  4. 8. Performance of susceptible and tolerant juvenile Fraxinus excelsior infected by Hymenoscyphus fraxineus, the invasive pathogen causing ash dieback

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Axelina Jonsson; [2017]
    Keywords : ash dieback; Fraxinus excelsior; Hymenoscyphus fraxineus; disease tolerance; heritability;

    Abstract : European ash (Fraxinus excelsior), a tree species with both economic and ecological importance, has experienced a steady population decline in Europe since the early 1990’s due to ash dieback, caused by the pathogen Hymenoscyphus fraxineus. In 2001, the first observations of ash dieback were made in Sweden and by 2010, ash had become a red-listed species. READ MORE

  5. 9. Regeneration dynamics of pedunculate oak in natural temperate forests: a case from southern Sweden

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Olle Finnström; [2016]
    Keywords : eutrophic temperate mixed broadleaf forest; competition; crown size; disturbance; oak regeneration; pedunculate oak; quercus robur; stem diameter; tree height;

    Abstract : Oaks are some of the most wide-spread and iconic trees in human culture, yet populations of oaks are declining due to land conversion, disease and because of lack of disturbance in temperate forests. Oaks are fairly light demanding trees, requiring large-scale disturbance to create suitable environments for regeneration. READ MORE

  6. 10. Värdspecifitet och diversitet av svampendofyter hos Fraxinus excelsior och Acer pseudoplatanus

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Alva Anderberg; [2016]
    Keywords : endofyter; Fraxinus excelsior; ask; Acer pseudoplatanus; sykomorlönn; svampsamhällen; värdspecifitet; biologisk mångfald;

    Abstract : Efter askskotts- och almsjukans snabba framfart står det klart att svampsjukdomar inom loppet av ett decennium kan få mångfalden i svenska skogar att se fundamentalt annorlunda ut. Skogsbruket och naturvården saknar två av tidigare alternativ för föryngring av ädellövskog. READ MORE