Search for dissertations about: "ecological restoration"

Showing result 21 - 25 of 33 swedish dissertations containing the words ecological restoration.

  2. 21. Plankton communities in a changing world - responses to temperature, brownification and lake restoration

    Author : Mattias Ekvall; Enhet akvatisk ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Climate change; temperature; warming; brownification; biomanipulation; zooplankton; cyanobacteria; microcystin; grazing; Daphnia;

    Abstract : The effects of increasing temperatures, in light of climate change, have been a well-studied topic during the past decades. However, aquatic ecosystems are also faced with additional challenges such as increasing water colour, known as “brownification”. READ MORE

  4. 22. Restoration of Nutrient Rich Lakes - Towards Better Understanding of Sediment Phosphorus Availability and Management

    Author : Oskar Agstam; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Lakes are important for many reasons as they provide valuable ecological and human services, such as drinking water and recreational use. Eutrophication, a result of excess nutrients (e.g. phosphorus (P)) in lakes, is a threat to these resources, causing impairment of water quality. READ MORE

  5. 23. Redefining the role of wetlands as methyl mercury sources : insights from wetlands before and after restoration

    Author : Ida Tjerngren; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Current literature identifies boreal wetlands as net sources for the potent neurotoxin methyl mercury (MeHg). Combined with national environmental aims of restoration of previously drained wetlands, there is a possible conflict between the ecological benefits of wetlands and their role as MeHg sources. READ MORE

  6. 24. Forest restoration guided by an umbrella species : will measures to protect the white-backed woodpecker benefit saproxylic beetles?

    Author : David Bell; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Management shortcuts in conservation biology, like the umbrella species concept, have been debated worldwide. Umbrella species have been used to identify and delineate protective areas, but habitat requirements of umbrella species can also provide tangible targets in ecological restoration. READ MORE

  7. 25. Three essays on our planetary future

    Author : Rasmus Karlsson; Statsvetenskapliga institutionen; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; democracy; intergenerational justice; Global change; sustainable development; innovation policy;

    Abstract : This thesis propounds a techno-environmentalist position. Seeking to combine the need for natural restoration with human development, the thesis explores to what extent more radical forms of ecological modernization can offer a basis for political compromise and open new paths to global long-term sustainability. READ MORE