Sökning: "Alien Species"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden Alien Species.

  1. 1. Alien Fish Species in the Eastern Mediterranean Sea: Invasion Biology in Coastal Ecosystems

    Författare :Stefan Kalogirou; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Alien Species; Non-indigenous species; Mediterranean Sea; Invasion biology; Fish;

    Sammanfattning : .... LÄS MER

  3. 2. Deliberating value : On the theory and practice of valuation of nature from neoclassical to ecological economics

    Författare :Lina Isacs; Cecilia Håkansson; Jasper Kenter; Therese Lindahl; Ulrika Gunnarsson-Östling; Neil Ravenscroft; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; ecological economics; neoclassical environmental economics; value; valuation; deliberative democracy; green GDP; alien invasive species; social cost of carbon; SCC; carbon values; stated preferences; trade-offs; Alan Holland; Dasgupta; ontology; epistemology; critical realism; autoethnograhpy; critical theory; reflexive methodology; ekologisk ekonomi; neoklassisk miljöekonomi; värde; värdering; deliberativ demokrati; grön BNP; invasiva arter; skadekostnader; klimat; modeller; SP; preferenser; trade-offs; ontologi; epistemologi; kritisk realism; autoetnografi; kritisk teori; reflexiv metodologi; Miljöstrategisk analys; Environmental Strategic Analysis;

    Sammanfattning : This thesis is about whether it is a good idea to place monetary value on nature, to remedy the fact that we treat it as having no particular value to us humans, although it clearly has. The thesis is based on five research papers that can be said to position themselves on opposite sides in the debate on monetisation of nature. LÄS MER

  4. 3. Multiple Aphid resistance from alien sources and its chromosomal location in bread wheat

    Författare :Leonardo Crespo; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Wheat (Triticum aestivum) is a very important cereal crop and is cultivated worldwide on more than 200 million hectares annually, with an average grain yield of about 3 t/ha. A number of diseases and pests are known to affect wheat production, with aphids being important insect pests. LÄS MER

  5. 4. Assessing and monitoring genetic patterns for conservation purposes with special emphasis on Scandinavia

    Författare :Anna Palmé; Nils Ryman; Linda Laikre; Kerry Naish; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biological diversity; conservation genetics; management unit; spatial genetic structure; sympatric populations; genetic monitoring; release of alien populations; northern pike; brown trout; harbour porpoise; Biology; Biologi; populationsgenetik; Population Genetics;

    Sammanfattning : Genetic variation is essential for biological evolution, for maintaining viability of populations, and to ensure ecosystem resilience. Increased human exploitation and environmental change result in rapid loss of biological variation, including genetic diversity. LÄS MER

  7. 5. Dynamics of ecological communities in variable environments : local and spatial processes

    Författare :Linda Kaneryd; Bo Ebenman; Peter Münger; Michael S. Fowler; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : The ecosystems of the world are currently facing a variety of anthropogenic perturbations, such as climate change, fragmentation and destruction of habitat, overexploitation of natural resources and invasions of alien species. How the ecosystems will be affected is not only dependent on the direct effects of the perturbations on individual species but also on the trophic structure and interaction patterns of the ecological community. LÄS MER