Lena Gustafsson,^* Susan C. Baker,^** Jürgen Bauhus,^*** William J. Beese,^**** Angus Brodie,^***** Jari Kouki,^****** David B. Lindenmayer,^******* Asko Lõhmus,^******** Guillermo Martínez Pastur,^********* Christian Messier,^********** Mark Neyland,^*********** Brian Palik,^************ Anne Sverdrup-Thygeson,^{*************} W. Jan A. Volney,^{**************} Adrian Wayne,^{***************} Jerry F. Franklin<sup>****************


*</sup>Lena Gustafsson (lena.gustafsson@slu.se) is a professor of conservation biology at the Swedish University of Agricultural Sciences, in Uppsala.
^**Susan C. Baker is a postdoctoral research fellow in the School of Plant Science at the University of Tasmania, in Hobart, Australia.
^***Jürgen Bauhus is a professor of silviculture at the University of Freiburg, Germany.
^****William J. Beese is a professor of forest ecology at Vancouver Island University, in Nanaimo, British Columbia, Canada.
^*****Angus Brodie is an assistant division manager at the Washington State Department of Natural Resources, in Olympia.
^******Jari Kouki is a professor of forest ecology at the University of Eastern Finland, in Joensuu.
^*******David B. Lindenmayer is a professor of ecology and conservation science in the Fenner School of Environment and Society at The Australian National University, in Canberra.
^********Asko Lõhmus is a senior researcher at the University of Tartu, in Estonia.
^*********Guillermo Martínez Pastur is a senior researcher at the Centro Austral de Investigaciones Científicas in Tierra del Fuego, Argentina.
^**********Christian Messier is a professor of forest ecology at the University of Québec at Montreal, in Canada.
^***********Mark Neyland is a principal research scientist at Forestry Tasmania, in Hobart, Australia.
^************Brian Palik is a research ecologist and team leader at the US Department of Agriculture Forest Service's Northern Research Station, in Grand Rapids, Minnesota.
^{*************}Anne Sverdrup-Thygeson is an assistant professor at the Norwegian University of Life Sciences, in Aas.
^{**************}W. Jan A. Volney is a retired senior scientist at Natural Resources Canada, at the Canadian Forest Service's Northern Forestry Centre, in Alberta.
^{***************}Adrian Wayne is a research scientist in forest ecology in the Western Australia Department of Environment and Conservation, in Manjimup.
^{****************}Jerry F. Franklin is a professor of ecosystem analysis in the School of Environmental and Forest Science, at the University of Washington, in Seattle.