Sökning: "Parus major"

Visar resultat 11 - 13 av 13 avhandlingar innehållade orden Parus major.

  1. 11. Structural variants in the great tit genome and their effect on seasonal timing

    Författare :Vinicius Henrique da Silva; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The biodiversity of our planet has been increasingly endangered by human actions. This nature biodiversity is strictly correlated with genomic diversity of all the species in the ecosystem. LÄS MER

  3. 12. Fattening strategies in wintering passerines

    Författare :Kristjan Lilliendahl; Innes C Cathill; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi; zoologisk ekologi; Animal Ecology;

    Sammanfattning : Stored fat is a main source of energy for birds in winter and it seems reasonable that fatter birds should survive better. Small birds wintering at high latitudes, however, carry less fat than their capacity permits, suggesting a predation cost of excessive fatness. LÄS MER

  4. 13. Comparative studies of cognitive abilities in the Paridae : Evidence from laboratory studies

    Författare :Utku Urhan; Evolutionär ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Comparative cognition; Spatial memory; Food hoarding; Observational spatial memory; motor self-regulation; Cognitive sex differences; foraging strategies;

    Sammanfattning : The Paridae (tits, titmice and chickadees) is a bird family consisting of both food hoarding and non-hoarding species. Many studies have been conducted on birds that are considered to be cognitively advanced, such as parrots and corvids, whereas much less is known about these small passerines. LÄS MER