Essays about: "postglacial population expansion"
Found 2 essays containing the words postglacial population expansion.
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1. Demography of Birch Populations across Scandinavia
University essay from Uppsala universitet/Växtekologi och evolution; Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : Boreal forests are particularly vulnerable to climate change, experiencing a much more drastic increase in temperatures and having a limited amount of more northern refugia. The trees making up these vast and important ecosystems already had to adapt previously to environmental pressures brought about by the repeated glaciations during past ice ages. READ MORE
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2. The common meadow EuropeanGrasshopper (Chorthippus parallelus)as a window to the process ofspecies formation
University essay from Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : Despite more than 50 years of research on the genetic basis of speciation, we still know very little about the early stages of this process. A general rule of speciation is the Haldane’s Rule, which states that postzygotic isolation is expressed earlier in the heterogametic sex: sterility and inviability in hybrids is much more likely to occur in the heterogametic sex. READ MORE