Search for dissertations about: "Cyanistes caeruleus"

Showing result 6 - 8 of 8 swedish dissertations containing the words Cyanistes caeruleus.

  2. 6. Have a fling with your neighbour, you might be less related

    Author : Marcus Ljungqvist; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Major threats to biodiversity and ecosystem persistence are fragmentation of habitats and declining population sizes. For conservation biologists to understand the consequences of declining populations for the long term persistence and recovery of species worldwide, it is important to know and understand the underlying causes of potential threats, such as the depletion of genetic diversity, which is important for populations to be able to adapt and prevail in a changing environment. READ MORE

  4. 7. Life at stake when playing hide and seek : Concealing effects of prey colouration and visual backgrounds

    Author : Marina Dimitrova; Merilaita Sami; Innes C. Cuthill; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; predation; adaptive prey coloration; camouflage; concealment; crypsis; background matching; disruptive colouration; distractive markings; Terrestrial ecology; Terrestrisk ekologi; zoologisk ekologi; Animal Ecology;

    Abstract : A prey animal can use different strategies to avoid becoming eaten by predators. One such widely recognised strategy is the use of body colouration to decrease the risk of becoming detected, i.e. cryptic colouration. READ MORE

  5. 8. Comparative studies of cognitive abilities in the Paridae : Evidence from laboratory studies

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

    Abstract : 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. READ MORE