1. Bavarian Forest National Park; Freyungerstr. 2 DE-94481 Grafenau Germany
2. Terrestrial Ecology Research Group, Dept of Ecology and Ecosystem Management; Center for Food and Life Sciences Weihenstephan, Technische Univ. München; Hans-Carl-von-Carlowitz-Platz 2 DE-85354 Freising Germany
3. Univ. de Toulouse, INPT - Ecole d'Ingénieurs de Purpan, UMR 1201 Dynafor INRA-INPT; FR-31076 Toulouse Cedex 03 France
4. Am Greifenkeller 1b, Feuchtwangen Germany
5. National Research Inst. of Science and Technology for Environment and Agriculture (Irstea); Domaine des Barres, Nogent-sur-Vernisson France
6. Ecological Botanical Gardens, Univ. of Bayreuth; Universitätsstr. 30 DE-95440 Bayreuth Germany
7. Bavarian State Inst. for Viticulture and Horticulture, Bee Research Center; An der Steige 15 DE-97206 Veitshöchheim Germany
8. Swiss Federal Inst. for Forest, Snow and Landscape Research WSL; Zürcherstrasse 111 CH-8903 Birmensdorf Switzerland
9. Chair for Strategic Landscape Planning and Management (Allianz-Stiftungsprofessur), Research Dept, Ecology and Ecosystem Management; Technische Univ. München; Freising-Weihenstephan Germany
10. Dept of Forest Protection and Entomology; Faculty of Forestry and Wood Sciences, Czech Univ. of Life Sciences Prague; Kamycka 1176 CZ-165 21 Prague Czech Republic
11. Dept of Botany and Zoology; Faculty of Science, Masaryk Univ.; Kotlarska 2 CZ-61137 Brno Czech Republic
12. Strombergstr. 22a, Bornheim Germany
13. INRA, UMR1201 DYNAFOR, Chemin de Borde Rouge, Auzeville; CS 52627, FR-31326 Castanet Tolosan Cedex France
14. CNPF/IDF, Antenne de Toulouse; 7 chemin de la Lacade FR-31320 Auzeville Tolosane France
15. Obergasse 29 Moessingen Germany
16. Swedish Forest Agency; PO Box 63, SE-281 21 Hässleholm Sweden
17. Centro Nazionale per lo Studio e la Conservazione della Biodiversità Forestale “Bosco Fontana”; Strada Mantova 29 IT-46045 Marmirolo (MN) Italy