Sökning: "Evolutionary stasis"

Hittade 2 avhandlingar innehållade orden Evolutionary stasis.

1. 1. Evolving ecological communities in changing environments

   Författare :Jacob Johansson; Evolutionär ekologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; adaptive dynamics; competition; community evolution; ecological communities; environmental change; evolutionary branching;

   Sammanfattning : This thesis consists of theoretical studies of the evolutionary consequences of environmental change in ecological communities. Paper I and II are concerned with the origin of diversity, i.e. how a single lineage can split into two, under the influence of selection induced by competitive interactions (evolutionary branching). LÄS MER

3. 2. Genome Evolution in Maternally Inherited Insect Endosymbionts

   Författare :Lisa Klasson; Siv Andersson; Jonas Sandström; George Weinstock; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi; Biology; Biologi;

   Sammanfattning : Symbiosis is a widely common phenomenon in nature and has undoubtedly contributed to the evolution of all organisms on earth. Symbiotic associations can be of varying character, such as parasitic or mutualistic, but all imply a close relationship. LÄS MER