Sökning: "eagle"

Visar resultat 1 - 5 av 12 avhandlingar innehållade ordet eagle.

1. 1. Conservation Genetics of the White-Tailed Eagle

   Författare :Frank Hailer; Hans Ellegren; Carles Vilà; Rob C Fleischer; Uppsala universitet; []
   Nyckelord :Biology; Haliaeetus albicilla; microsatellites; mtDNA; molecular sexing; population structure; bottleneck; phylogeography; raptors; Biologi;

   Sammanfattning : The white-tailed eagle is a formerly threatened raptor that is commonly used as a flagship and indicator species in conservation work. This thesis uses molecular genetic methods to study sex determination of nestlings, genetic variability, population structure and phylogeography of the white-tailed eagle. LÄS MER

3. 2. Reproduction of the white-tailed sea eagle Haliaeetus albicilla (L.) in Sweden, in relation to food and residue levels of organochlorine and mercury compounds in the eggs

   Författare :Björn Helander; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : .... LÄS MER

4. 3. Habitat selection and breeding ecology of golden eagles in Sweden

   Författare :Edward Moss; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The red-listed Golden Eagle (Aquila chrysaetos) population is estimated between 1200-1400 reproductive individuals in Sweden. This population is unusual as eagles predominantly nest in trees unlike most others that prefer cliffs. LÄS MER

5. 4. Predator-prey interactions of raptors in an arctic environment

   Författare :Jesper Nyström; Anders Angerbjörn; A. Rolf Ims; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology of raptors; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

   Sammanfattning : This thesis concerns the predator-prey interactions of three raptor species in a Swedish arctic community: the gyrfalcon (Falco rusticolus), the rough-legged buzzard (Buteo lagopus) and the golden eagle (Aquila chrysaetos). The gyrfalcon behaved like a highly specialised ptarmigan (Lagopus spp.) predator. LÄS MER

7. 5. Levels of organohalogen compounds in White-tailed sea eagles (Haliaeetus albicilla) in relation to reproduction impairment in the Bothnian Sea

   Författare :Ulrika Nordlöf; Lillemor Asplund; Björn Helander; Yngve Zebuhr; Michael Mclachlan; Roland Kallenborn; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Environmental Science; tillämpad miljövetenskap;

   Sammanfattning : The white-tailed sea eagle (Haliaeetus albicilla) is in the top of the marine food chain and its existence in Sweden has been threatened several times. The species succeeded to recover from the deep decline in the 1970s when the exposure to persistent organic pollutants influenced the reproduction negatively. LÄS MER