Search for dissertations about: "life-history strategy"

Showing result 1 - 5 of 27 swedish dissertations containing the words life-history strategy.

2. 1. A functional genomic investigation of an alternative life history strategy : The Alba polymorphism in Colias croceus

   Author : Alyssa Woronik; Christopher Wheat; Antonia Monteiro; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; alternative life history strategy; butterfly wing color; Alba; Colias; color polymorphism; dimorphism; life history traits; physiology; lipidomics; genomics; pooled sequencing; phylogenomics; RNA-Seq; Pool-Seq; populationsgenetik; Population Genetics;

   Abstract : Life history traits affect the timing and pattern of maturation, reproduction, and survival during an organism’s lifecycle and are the major components influencing Darwinian fitness. Co-evolved patterns of these traits are known as life history strategies (LHS) and variation occurs between individuals, populations, and species. READ MORE

4. 2. Butterfly life history and mating systems

   Author : Virpi Sjöberg Lindfors; Göran Arnqvist; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; zoologisk ekologi; Animal Ecology;

   Abstract : The general hypothesis tested in this thesis is whether butterfly mating strategies are affected by their life history. Several components of mating behaviour, morphological and physiological traits were studied and related to various life histories. Male and female interests are often in conflict. READ MORE

5. 3. Age, Longevity and Life-History Trade-Offs in the Collared Flycatcher (Ficedula albicollis)

   Author : Joanna Sendecka; Lars Gustafsson; Anna Qvarnström; Pat Monaghan; Uppsala universitet; []
   Keywords : Ecology; age; collared flycatcher; Ficedula albicollis; long-term study; senescence; longevity; reproductive success; selection; individual quality; breeding experience; reproductive effort optimization; terminal investment; life-history trade-offs; reproductive costs; Ekologi;

   Abstract : Age is often a neglected factor in ecological studies. However, age-related changes in reproduction and survival of organisms may strongly influence population dynamics. READ MORE

6. 4. Strategy games; on survival and reproduction

   Author : Helen Olofsson; Biologiska institutionen; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ekologi; Ecology; evolution of sexual reproduction; dormancy; game theory; migration; bet-hedging; Life history theory;

   Abstract : Classical evolutionary life history concerns questions such as optimal timing of maturation, life span and number of offspring. These questions have mostly been studied theoretically under the assumption that the environment is stable and without taking into account frequency and density dependence. READ MORE

7. 5. 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