Sökning: "Tättingar"
Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet Tättingar.
1. Polyterritorial behaviour and polygyny in the wood warbler (Phylloscopus sibilatrix - Bechst.)
Sammanfattning : .... LÄS MER
2. Parasite impact on reproductive success in the great tit, Parus major
Sammanfattning : .... LÄS MER
3. Parasites, reproductive success and health status in birds
Sammanfattning : .... LÄS MER
4. Flight Behaviour of Passerines on Nocturnal Migration
Sammanfattning : Many passerines migrate during the night and at high altitudes, making their migration difficult to observe. By using tracking radars we have been able to make exact observations of the flight behaviour of passerines on nocturnal migration, which has enabled us to test several hypotheses about adaptive values and constraints regarding migratory behaviour in different ecological contexts. LÄS MER
5. A new perspective on avian phylogeny - a study based on mitochondrial genomes
Sammanfattning : The Class Aves (birds) is generally divided into two main groups - the Palaeognathae and the Neognathae. Paleognathous birds are the flightless ratites and the tinamous, while Neognathae include all other extant birds (more than 9,000 species). LÄS MER