Essays about: "ekologi"

Showing result 1 - 5 of 557 essays containing the word ekologi.

  1. 1. Environmental change during the Holocene : A comparative multi-proxy study of landscape disturbances in Northern Sweden

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Mégane Capel; [2019]
    Keywords : Holocene; Lake-Water TOC; climate; lake sediment; vegetation;

    Abstract : Varved lake sediments were used to provide information on how a landscape is affected by disturbances of different scales, from global (i.e. climatic) to local (i.e. READ MORE

  2. 2. Seasonal community dynamics of macroinvertebrates in an Arctic stream

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Ellinor Jakobsson; [2019]
    Keywords : Macroinvertebrates; Arctic; seasonality; community composition; Abisko;

    Abstract : Arctic ecosystems are amongst the most vulnerable on Earth to ongoing climate change. While the responses to these changes are well studied on land, less is known about how aquatic communities may respond to a warmer arctic. READ MORE

  3. 3. Ekologisk påverkan och förvaltning av en invasiv art – den amerikanska minken

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Michelle Entesarian; [2019]
    Keywords : mink; neovision; ekologi; invasiv; artrikedom; förvaltning; strategier; fångredskap;

    Abstract : Den Amerikanska minken (Neovison vison) är troligen främst känd för att vara ett djur som föds upp inom pälsindustrin för dess eftertraktade skinn, men minken har även en roll i ekosystemet. När minken befinner sig utanför sitt hemland utgör den däremot ett hot mot ett flertal arter, vilket är viktigt att ta hänsyn till för att bevara den biologiska mångfalden. READ MORE

  4. 4. Stickleback diets in bays along the northen Baltic Sea

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Douglas Skarp; [2019]
    Keywords : stickleback; perch larvae; predation; competition; bay;

    Abstract : Coastal populations of perch (Perca fluviatilis) in the Baltic Sea has declined substantially the last decades while the populations of three-spined sticklebacks (Gasterosteus aculeatus) has increased rapidly during the same time period. Earlier studies have suggested that predation on perch larvae and or competition from sticklebacks are the causes behind the decline in perch. READ MORE

  5. 5. Studying genetics of leaf shape variation in Arabidopsis lyrata

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Carina Kvernes Macpherson; [2019]
    Keywords : Arabidopsis lyrata; Arabidopsis arenosa; leaf shape; RCO genes; genotype; phenotype; gene sequence variation;

    Abstract : The relationship between leaf and its environment has resulted in a tremendous diversification of leaf shape within and between plants species, which is important to cope with the differing environmental conditions. Arabidopsis lyrata is a prime model plant that shows leaf shape variation within species and between related species. READ MORE