Sökning: "life-history strategy"
Visar resultat 1 - 5 av 28 avhandlingar innehållade orden life-history strategy.
1. A functional genomic investigation of an alternative life history strategy : The Alba polymorphism in Colias croceus
Sammanfattning : 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. LÄS MER
2. Butterfly life history and mating systems
Sammanfattning : 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. LÄS MER
3. Age, Longevity and Life-History Trade-Offs in the Collared Flycatcher (Ficedula albicollis)
Sammanfattning : Age is often a neglected factor in ecological studies. However, age-related changes in reproduction and survival of organisms may strongly influence population dynamics. LÄS MER
4. Strategy games; on survival and reproduction
Sammanfattning : 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. LÄS MER
5. Costs and benefits of immune system activation on physiology, behavior and offspring phenotype from an immunoecological perspective
Sammanfattning : 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. LÄS MER