Sökning: "Evolutionsbiologi"

Visar resultat 36 - 40 av 361 avhandlingar innehållade ordet Evolutionsbiologi.

  1. 36. Microevolution in pygmy grasshoppers

    Författare :Jon Tinnert; Anders Forsman; Anssi Laurila; Linnéuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Evolutionary Biology; Evolutionsbiologi;

    Sammanfattning : Knowledge of how spatiotemporal environmental variation impacts ecological and evolutionary processes and contributes to genetic and phenotypic diversity of natural populations is key to understanding and protecting biological diversity. In this thesis I used pygmy grasshoppers to study how environmental conditions, population dynamics, dispersal and admixture may influence genetic structure and diversity, and to evaluate how functionally important variation may affect the ability of populations to cope with novel and changing habitats. LÄS MER

  3. 37. Population-level consequences of variation

    Författare :Lena Wennersten; Anders Forsman; Olof Leimar; Deepa Agashe; Linnéuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; colour polymorphism; diversity; establishment success; evolutionary changes; population-level consequences; predation risk; Tetrix subulata; variation; Evolutionary Biology; Evolutionsbiologi;

    Sammanfattning : Consequences of within population variation have recently attracted an increased interest in evolutionary ecology research. Theoretical models suggest important population-level consequences, but many of these predictions still remain to be tested. LÄS MER

  4. 38. Deciphering molecular mechanisms in the evolution of new functions

    Författare :Hind Abdalaal; Joakim Näsvall; Paul Rainey; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Evolvability; functional trade-offs; collateral toxicity; duplication and amplification; Biologi med inriktning mot mikrobiologi; Biology with specialization in Microbiology; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution;

    Sammanfattning : The evolution of new genes and functions is considered to be a major contributor to biological diversity in organisms. Through de novo origination, “duplication and divergence”, and horizontal gene transfer, organisms can acquire new genetic material that can evolve to perform novel functions. LÄS MER

  5. 39. Early domestication? : Phenotypic alterations of Red Junglefowl selected for divergent fear of humans

    Författare :Beatrix Agnvall; Per Jensen; Hannah Rowland; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Domestication is the process through which animals adapt to conditions provided by humans. The domesticated phenotype differs from wild ancestors in a number of traits relating to physiology, morphology and behaviour. LÄS MER

  7. 40. Moral Lessons from Psychology : Contemporary Themes in Psychological Research and their Relevance for Ethical Theory

    Författare :Henrik Ahlenius; Jonas Olson; Frans Svensson; Antti Kauppinen; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; consequentialism; deontology; emotion; ethics; evolution; innate; moral judgment; moral philosophy; psychology; utilitarianism; virtue; praktisk filosofi; Practical Philosophy;

    Sammanfattning : The thesis investigates the implications for moral philosophy of research in psychology. In addition to an introduction and concluding remarks, the thesis consists of four chapters, each exploring various more specific challenges or inputs to moral philosophy from cognitive, social, personality, developmental, and evolutionary psychology. LÄS MER