JON E. SWENSON,^1,* BJØRN DAHLE,^2,** HELENA BUSK,^3,*** OLE OPSETH,^4,**** THOMAS JOHANSEN,^5,***** ARNE SÖDERBERG,⁶ KJELL WALLIN,⁷ GÖRAN CEDERLUND<sup>8,******

1</sup>aDepartment of Ecology and Natural Resource Management, Norwegian University of Life Sciences, P.O.
²bDepartment of Ecology and Natural Resource Management, Norwegian University of Life Sciences, P.O.
³cDepartment of Conservation Biology, Swedish Agricultural University, P.O. Box 7002, SE-750 07 Uppsa
⁴dDepartment of Biology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
⁵eDepartment of Biology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
⁶fNational Veterinary Institute of Sweden, SE-751 89 Uppsala, Sweden
⁷gDepartment of Plant and Environmental Science, Göteborg University, P.O. Box 461, SE-405 30 Götebor
⁸hDepartment of Conservation Biology, Grimsö Wildlife Research Station, SE-730 91 Riddarhyttan, Swede

^* E-mail: jon.swenson@umb.no
^** Present address: Department of Biology, University of Oslo, P.O. Box 1066 Blindern, NO-0316 Oslo, Norway
^*** Present address: Agriculture Ministry, SE-103 33 Stockholm, Sweden
^**** Present address: Länstyrelsen i Dalarna, P.O. Box 86, SE-790 91 Idre, Sweden
^***** Present address: Norwegian Nature Inspectorate, NO-9321 Moen, Norway
^****** Present address: Swedish Game Management, P.O. Box 5260, SE-711 98 Ramsberg, Sweden