Sökning: "selection bias"

Visar resultat 6 - 10 av 184 avhandlingar innehållade orden selection bias.

1. 6. Sexual conflict and selection on pistil and pollen traits

   Författare :Josefin Madjidian; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Antagonistic trait; Collinsia heterophylla; delayed stigma receptivity; direct cost; first-donor advantage; gender bias; heritability; indirect benefit; mate choice; mixed-mating system; paternal diversity; pollen competition; pollen deposition; pollen load size; pollen tube growth rate; self-compatibility; semantics; sexual conflict; sexual selection; sexually antagonistic co-evolution;

   Sammanfattning : The incidence of sexual selection in plants is today acknowledged, however, just as in animals, evolution and maintenance of mate choice is gravely underexplored. Moreover, the potential for sexual conflicts to occur in plants has only been assessed empirically to a very limited degree. LÄS MER

3. 7. Bioinformatic Analysis of Mutation and Selection in the Vertebrate Non-coding Genome

   Författare :Mikael Brandström; Hans Ellegren; Diethard Tautz; Uppsala universitet; []
   Nyckelord :Biology; non-coding genome; selection; mutation; chicken; human; indel; microsatellite; sequence alignment; comparative genomics; bioinformatics; vertebrate; Biologi;

   Sammanfattning : The majority of the vertebrate genome sequence is not coding for proteins. In recent years, the evolution of this noncoding fraction of the genome has gained interest. These studies have been greatly facilitated by the availability of full genome sequences. LÄS MER

4. 8. Mating strategies and sexual conflicts in aquatic invertebrates: consequences for evolutionary differentiation

   Författare :Kristina Karlsson; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Asellus aquaticus; Dytiscidae; gender bias; genetic polymorphism; mate guarding; parallel evolution; plasticity; population divergence; sexual conflict; sexually antagonistic selection; sexual selection;

   Sammanfattning : In this thesis I investigated how mating related strategies may differ among populations and how these strategies evolve in response to their local ecological environments. I have used two different study systems of aquatic invertebrates: diving beetles (Dytiscidae) and the fresh water isopod Asellus aquaticus. LÄS MER

5. 9. Sexual Selection and Adaptation to Novel Environments

   Författare :Ivain Martinossi-Allibert; David Berger; Göran Arnqvist; Lukas Schärer; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sexual selection; Environmental change; Sexual conflict; Environmental stress; Adaptation; Adaptive landscape; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

   Sammanfattning : The work included in this thesis aims at exploring the environmental sensitivity of benefits and costs of sexual selection through a combined empirical and theoretical effort, to increase our understanding of the impact of environmental change on sexually reproducing populations.Can sexual selection promote adaptation to novel environments? Sexual selection for good genes should accelerate adaptation by granting higher reproductive success to individuals of high genetic quality. LÄS MER

7. 10. Integrating sustainability into concept selection decision-making

   Författare :Rachael Gould; Marco Bertoni; Sophie Hallstedt; Ola Isaksson; Blekinge Tekniska Högskola; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sustainable product development; decision-making; concept selection;

   Sammanfattning : The audience for this research is fellow researchers and others helping product developers to start including sustainability when they are selecting product concepts.The aims of the research were to understand the needs of product developers integrating sustainability into concept selection and what might be done to help them. LÄS MER