Isla H. Myers-Smith,^* David S. Hik,^** Catherine Kennedy,^*** Dorothy Cooley,^**** Jill F. Johnstone,^***** Alice J. Kenney,^****** Charles J. Krebs<sup>*******


*</sup>Isla H. Myers-Smith () is a doctoral candidate at the University of Alberta. Her research interests include the ecology of northern ecosystems in response to climate change. Address: Department of Biological Sciences, University of Alberta Edmonton, AB, Canada. e-mail: imyerssmith@ualberta.ca
^**David S. Hik is a professor at the University of Alberta. His research interests include the ecology of alpine and northern ecosystems. Address: Department of Biological Sciences, University of Alberta Edmonton, AB, Canada. e-mail: dhik@ualberta.ca
^***Catherine Kennedy is a vegetation scientist at the Yukon Territory Department of Emironment. Address: Department of Environment, Yukon Territorial Government, Whitehorse, YT, Canada. e-mail: catherine.kennedy@gov.yk.ca
^****Dorothy Cooley is a Regional Biologist with the Yukon Territory Department of Emironment. Address: Department of Environment, Yukon Territorial Government, Dawson City, YT, Canada. e-mail: dorothy.cooley@gov.yk.ca
^*****Jill F. Johnstone is an assistant professor at the University of Saskatchewan. Her research interests include the disturbance ecology and vegetation dynamics of boreal and Arctic ecosystems. Address: Department of Biology, University of Saskatchewan, Saskatoon, SK Canada. e-mail: jill.johnstone@usask.ca
^******Alice J. Kenney is a research associate at the University of British Columbia. Her research interests include population ecology. Address: Department of Zoology, University of British Columbia Vancouver, BC, Canada. e-mail: kenney@zoology.ubc.ca
^*******Charles J. Krebs is an Emeritus professor at the University of British Columbia. His research interests include the ecology of population cycles in small mammals. Address: Department of Zoology, University of British Columbia Vancouver, BC, Canada. e-mail: krebs@zoology.ubc.ca