Essays about: "Fredrik Olajos"

Found 2 essays containing the words Fredrik Olajos.

  1. 1. The post-glacial colonization of fish populations can be dated with DNA in lake sediments.

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Fredrik Olajos; [2016]
    Keywords : ;

    Abstract : The age of natural populations is crucial information when studying processes like extinction,colonization, adaptation and evolutionary divergence. Here I evaluate if DNA in lakesediments can be used to date the colonization by whitefish (Coregonus lavaretus) in lakes incentral Sweden. READ MORE

  3. 2. Growth of whitefish ecotypes : A comparison of individual growth rates in monomorphic and polymorphic populations

    University essay from Institutionen för ekologi, miljö och geovetenskap

    Author : Fredrik Olajos; [2013]
    Keywords : whitefish; growth rate; scales; pike; polymorphism;

    Abstract : In resource polymorphism, ecological opportunity and selective predatory pressure can be considered key factors in phenotypic divergence. In post-glacial lakes of Scandinavia, the European whitefish (Coregonus lavaretus L.) is a common species and has repeatedly diverged along the benthic - pelagic resource axis. READ MORE