The contact information for Rasmus Nielsen is

UC Berkeley
Department of Integrative Biology
4098 Valley Life Sciences Building (VLSB)
Berkeley, CA 94720-3140
Phone: (510) 643-4993
Email: rasmus_nielsen (at) berkeley.edu

Administrative Assistant:
Elizabeth Ruchenski4151
Valley Life Sciences Building (VLSB)
Berkeley, CA 94720-3140
Phone: (510) 643-0060
Email: 
lruchens (at) berkeley.edu

You can find the contact information for other members of the UC Berkeley Nielsen Group here.