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Fletta eftir höfundi "Halldórsson, Guðmundur"

Fletta eftir höfundi "Halldórsson, Guðmundur"

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    Avian abundance and communities in areas revegetated with exotic versus native plant species 
    Davíðsdóttir, Brynja; Gunnarsson, Tomas Gretar; Halldórsson, Guðmundur; Sigurdsson, Bjarni D. (Agricultural University of Iceland, 2016)
    Degradation of ecosystems and introductions of invasive species pose a threat to global biodiversity. Ecosystem restoration and revegetation actions are important for amending habitat loss and for the protection of species of plants and animals. Iceland ...
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    Effects of reduced water availability and insecticide on damage caused by cabbage root fly larvae 
    Baba, Abdul-Salam Mahamud; Barrio, Isabel C; Halldórsson, Guðmundur (Agricultural University of Iceland, 2019)
    The incidence of horticultural pests in combination with increased frequency of extreme weather events, like summer drought, can compromise crop production in Nordic agricultural systems during the already short summer growing season. In particular, ...
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    Evaluating the process of ecological restoration 
    Nilsson, Christer; Aradottir, Ása L.; Hagen, Dagmar; Halldórsson, Guðmundur; Høegh, Kenneth; Mitchell, Ruth J.; Raulund-Rasmussen, Karsten; Svavarsdóttir, Kristín; Tolvanen, Anne; Wilson, Scott D. (Resilience Alliance, Inc., 2016)
    We developed a conceptual framework for evaluating the process of ecological restoration and applied it to 10 examples of restoration projects in the northern hemisphere. We identified three major phases, planning, implementation, and monitoring, in ...