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Stéphanie Morelon

PhD student

Research interests

Local History, Climate, Anthropism as well as biotic interactions or edaphic factors shape the geographical repartition of plant communities in time. The Last Glacial Maximun (LGM) highly impacted species distribution in Europe and particularly in the Alpine Ark -which was mostly glaciated- and its peripheral areas. Newly immigrated plant communities appeared after this major event, as the main part of local individuals had disappeared. Nevertheless, recent studies clearly support a local survival of several Alpine-Arctic species as well on the periphery as inside of the ice areas. The so-called “Nunataks” constitute deglaciated micro-refugees surrounded by ice.

Long time range fragmentation facilitates ecological or molecular differentiations that can lead to local Endemism. Nowadays, this long-time fragmentation remains sometimes visible, and areas of endemism are well known and studied in the Alpine Ark sensu stricto.  But what is going on in the peripheral chain of the Jura mountains?

Several studies evidenced a local survival in Jura during the Last Glacial Maximum. By a comparative approach between two groups of saxatile and non-saxatile plant species, this project will focus on structural, molecular and ecological Endemism in Jura mountains.

Stéphanie Morelon

stephanie.morelon@unine.ch

D322

+41 32 718 23 36