Search for dissertations about: "Cyanistes caeruleus"

Showing result 1 - 5 of 8 swedish dissertations containing the words Cyanistes caeruleus.

  2. 1. Costs and benefits of immune system activation on physiology, behavior and offspring phenotype from an immunoecological perspective

    Author : Sandra Sköld Chiriac; Evolutionär ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; immunoecology; acute-phase response; sickness behaviors; energy expenditure; fever; hypothermia; life history; maternal effects; terminal investment; costs of immune responses; Taeniopygia guttata; Parus major; Cyanistes caeruleus;

    Abstract : Pathogen challenges and host immune defenses can have substantial impact on life history patterns of animals. Biotic and abiotic factors may affect immunity in wild animals, influencing e.g., population dynamics and sexual selection. READ MORE

  4. 2. The Problem of Partial Migration - the Case of the Blue Tit

    Author : Anna Nilsson; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Naturvetenskap; Natural science; Djurekologi; Animal ecology; Ekologi; Ecology; weather; personality; partial migration; metabolic rate; evolution of migration; dominance; Cyanistes caeruleus; climate change; blue tit; behavioural strategies; bird migration;

    Abstract : In the evolution of bird migration, partial migration is assumed to be an important intermediate step between migration and residency. Partial migration is characterised by the existence of both migratory and resident individuals in a given population. READ MORE

  5. 3. Causes and consequences of individual variation in energy turnover rates

    Author : Johan Nilsson; Evolutionär ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; energy turnover rate; metabolic rate; BMR; RMR; life history; oxidative stress; carotenoids; incubation; Parus palustris; Cyanistes caeruleus; Taeniopygia guttata;

    Abstract : Individual energy turnover rates can vary remarkably, even within a species. In this thesis I study the causes and consequences of this pronounced variation and show that individual energy turnover rates can be affected by a large number of factors. READ MORE

  6. 4. Avian thermoregulation across age and seasons

    Author : Fredrik Andreasson; Evolutionär ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ambient temperature; body temperature; Cyanistes caeruleus; energy expenditure; hypothermia; life-history theory; metabolic rate; Parus major; thermoregulation; trade-off; winter ecology;

    Abstract : Animals constantly need to relate to prevailing environmental conditions and regulate their body temperature accordingly. Body temperature regulation in birds and mammals is inherently linked to energy expenditure and, thus, thermoregulation is a physiological mechanism that could trade-off with other costly processes, with potential long-term fitness consequences. READ MORE

  7. 5. The effects of temperature on avian physiology, behavior and development

    Author : Andreas Nord; Evolutionär ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; clutch size; Cyanistes caeruleus; ecological immunology; energy expenditure; fever; Ficedula hypoleuca; heterothermy; hypothermia; incubation; life history; metabolic rate; Parus major; RMR; Taeniopygia guttata; temperature; winter;

    Abstract : Temperature is a property of profound matter in all aspects of animal life, affecting both individual energy budgets and the environments in which animals reside. Thus, a proper understanding of the effects of temperature variation is instrumental in understanding not only animal form and function, but also the structure and dynamics of wild populations. READ MORE