[1
]Dept of Ecology, Swedish Univ. of Agricultural Sciences, Uppsala, Sweden. LM also
at: DAFNAE-Entomology; Univ. of Padova; Padova Italy
[2
]Norwegian Inst. of Bioeconomy Research; Ås Norway
[3
]Dept of Physical Geography and Ecosystem Science; Lund Univ.; Lund Sweden
[4
]USDA Forest Service, Rocky Mountain Research Station; UT USA
[5
]Dept of Forest and Conservation Sciences; Univ. of British Columbia; Vancouver Canada
[6
]Swiss Federal Research Inst. WSL; Birmensdorf Switzerland
[7
]Grégoire, Biological Control and Spatial Ecology, Univ. Libre de Bruxelles; Brussels
Belgium
[8
]Dept of Forest Protection; Section Beetles and Test Plant Protection, Northwest German
Forest Research Inst. (NW-FVA); Göttingen Germany
[9
]Ministère de Agriculture, de Alimentation et de la Forêt, Dépt Santé des Forêts; Seichamps
France
[10
]Dept of Forest and Soil Sciences, BOKU -; Univ. of Natural Resources and Life Sciences,
Inst. of Forest Entomology, Forest Pathology and Forest Protection; Wien Austria
[11
]Dept of Geosciences and Natural Resource Management; Univ. of Copenhagen; Frederiksberg
C. Denmark
[12
]National Park Service, Inventory and Monitoring Program; Fredericksburg USA