Sökning: "Johan Fahlman"

Hittade 2 uppsatser innehållade orden Johan Fahlman.

1. 1. Size selective predation of pike on whitefish : The effects on resource polymorphism in Scandinavian whitefish populations

   Kandidat-uppsats, Institutionen för ekologi, miljö och geovetenskap

   Författare :Johan Fahlman; [2014]
   Nyckelord :pike; whitefish; predation; resource polymorphism; divergence;

   Sammanfattning : The mechanisms behind speciation have been subject of debate for centuries. The presence of resource polymorphism has been discovered to play a significant part in this process, and has been proven to induce phenotypic and genetic divergence. LÄS MER

3. 2. En geokemisk kartering över området kring Nasa silvergruva : Effekterna av historisk gruvdrift i svensk fjällmiljö

   Kandidat-uppsats, Institutionen för ekologi, miljö och geovetenskap

   Författare :Johan Fahlman; [2012]
   Nyckelord :Acid mine drainage; Geochemistry; Historical mining; Nasafjäll; Swedish mountains;

   Sammanfattning : The aim of the study was to map the extent of Fe, Cu, Pb, As, Zn and S contamination in the area surrounding the Nasa silver mine. The mine operated between 1635 and 1810 with some prospecting performed in 1889, and has become infamous for the gruesome ways that the indigenous people were treated during the early years of operation. LÄS MER