Sökning: "David Gilljam"

Hittade 1 uppsats innehållade orden David Gilljam.

  1. 1. Metapopulation persistence of insects living in hollow oaks: effects of adding oaks in  the surrounding landscape

    Master-uppsats, Institutionen för fysik, kemi och biologi

    Författare :David Gilljam; [2009]
    Nyckelord :Metapopulation; Matrix; Fragmentation; Hollow oaks; Saproxylic; Conservation; Restoration;

    Sammanfattning : The oak district of Östergötland is one of the largest oak forests left in Europe and it harbours many threatened species dependent on old hollow trees. In this study, the saproxylic beetle Osmoderma eremita living in hollow oaks was used as a model species and parameterised for a metapopulation model (the incidence function model) at the level of individual trees. LÄS MER