About the Authors

Ute Stenkewitz

ute@ni.is

Affiliations Faculty of Life and Environmental Sciences, University of Iceland, Askja, Reykjavík, Iceland, Icelandic Institute of Natural History, Garðabær, Iceland, Institute for Experimental Pathology, University of Iceland, Keldur, Reykjavík, Iceland

Ólafur K. Nielsen

Affiliation Icelandic Institute of Natural History, Garðabær, Iceland

Karl Skírnisson

Affiliation Institute for Experimental Pathology, University of Iceland, Keldur, Reykjavík, Iceland

Gunnar Stefánsson

Affiliation Science Institute, University of Iceland, Reykjavík, Iceland

Competing Interests

The project received funding from a commercial source: Landsvirkjun Energy. This does not alter our adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: US ÓKN KS. Data curation: US. Formal analysis: US GS. Funding acquisition: ÓKN US. Investigation: ÓKN KS US. Methodology: US ÓKN KS GS. Project administration: ÓKN KS US. Resources: ÓKN KS US. Supervision: ÓKN KS GS. Visualization: US. Writing – original draft: US. Writing – review & editing: US ÓKN KS.