Sökning: "dispersal"
Visar resultat 11 - 15 av 313 avhandlingar innehållade ordet dispersal.
11. Biofilm formation and biofilm dispersal with Streptococcus pneumoniae
Sammanfattning : .... LÄS MER
12. Mobility and emigration in butterflies
Sammanfattning : Because of its implications for the survival of many species, dispersal plays a key role in conservation biology. A good knowledge about the different factors that influence dispersal decisions is crucial for the understanding of inter-population movements. LÄS MER
13. On the origin of polymorphism - consequences of competition and predation in heterogeneous environments
Sammanfattning : In this thesis, I have studied when an initially monomorphic population can diverge into two morphs in a heterogeneous environment. Evolution is driven by competition for resources or predation. In Paper I, we studied source-sink dynamics during evolution in an environment with two types of resource of different abundance in two habitats. LÄS MER
14. Community and food web assembly on virgin habitat islands - The nunatak saga
Sammanfattning : The classical view of primary community assembly is that colonisation by plants is essential before invertebrates can establish. It has been recognised, however, that invertebrates can establish before plants, and that they may be important in the first steps of community assembly. LÄS MER
15. The dispersal–vicariance pendulum and butterfly biogeography
Sammanfattning : The relative importance of dispersal and vicariance in speciation is a subject of long standing debate. The earliest historical biogeographers invoked dispersal to explain disjunct distributions. LÄS MER