Sökning: "thermal updrafts"

Hittade 2 uppsatser innehållade orden thermal updrafts.

1. 1. Habitat use and ranging behaviour of GPS tracked juvenile golden eagles (Aquila chrysaetos)

   Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

   Författare :Carolin Sandgren; [2012]
   Nyckelord :GPS transmitter; fledging; post-fledging; migration; home range; boreal Sweden; forestry; wind farm;

   Sammanfattning : Throughout its wide distribution in the northern hemisphere, the golden eagle occurs in a diverse range of environments, e.g., mountainous, forest and open areas. The literature on juvenile golden eagles is limited, and this study provides further knowledge on habitat use and ranging behaviour during the post-fledging period in boreal Sweden. LÄS MER

3. 2. Weather induced variations in raptor migration : a study of raptor migration during one autumn season in Kazbegi, Georgia, 2010

   Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Michael Tholin; [2011]
   Nyckelord :Kazbegi; migrating raptors; weather; thermal updrafts; flight strategies; sträckande rovfåglar; väder; termik; flyktstrategier; Earth and Environmental Sciences;

   Sammanfattning : Raptors migrate by using either soaring and gliding flight or a combination of gliding and powered flight. The energy consumption when using powered flight increases rapidly with body mass and is therefore mainly used by the smaller raptors, such as Falcons, Sparrowhawks and Harriers. LÄS MER