The Arthropod Fauna of Oak (<i>Quercus</i> spp., Fagaceae) Canopies in Norway
Karl H. Thunes,
Geir E. E. Søli,
Csaba Thuróczy,
Arne Fjellberg,
Stefan Olberg,
Steffen Roth,
Carl-C. Coulianos,
R. Henry L. Disney,
Josef Starý,
G. (Bert) Vierbergen,
Terje Jonassen,
Johannes Anonby,
Arne Köhler,
Frank Menzel,
Ryszard Szadziewski,
Elisabeth Stur,
Wolfgang Adaschkiewitz,
Kjell M. Olsen,
Torstein Kvamme,
Anders Endrestøl,
Sigitas Podenas,
Sverre Kobro,
Lars O. Hansen,
Gunnar M. Kvifte,
Jean-Paul Haenni,
Louis Boumans
Affiliations
Karl H. Thunes
Norwegian Institute of Bioeconomy Research (NIBIO), Department Invertebrate Pests and Weeds in Forestry, Agriculture and Horticulture, P.O. Box 115, NO-1431 Ås, Norway
Geir E. E. Søli
Natural History Museum, University of Oslo, P.O. Box 1172 Blindern, NO-0318 Oslo, Norway
Csaba Thuróczy
Malomarok, u. 27, HU-9730 Köszeg, Hungary
Arne Fjellberg
Mågerøveien 168, NO-3145 Tjøme, Norway
Stefan Olberg
Biofokus, Gaustadalléen 21, NO-0349 Oslo, Norway
Steffen Roth
University Museum of Bergen, P.O. Box 7800, NO-5020 Bergen, Norway
Carl-C. Coulianos
Kummelnäsvägen 90, SE-132 37 Saltsjö-Boo, Sweden
R. Henry L. Disney
Department of Zoology, University of Cambridge, Downing St., Cambridge CB2 3EJ, UK
Josef Starý
Institute of Soil Biology, Academy of Sciences of the Czech Republic, Na Sádkách 7, CZ-37005 České Budějovice, Czech Republic
G. (Bert) Vierbergen
Netherlands Food and Consumer Product Authority, P.O. Box 9102, NL-6700 HC Wageningen, The Netherlands
Terje Jonassen
Naustvikvegen 69, NO-4170 Sjernarøy, Norway
Johannes Anonby
Øvre Nordstranda 429, NO-6823 Sandane, Norway
Arne Köhler
Senckenberg Deutsches Entomologisches Institut, Eberswalder Straße 90, DE-15374 Müncheberg, Germany
Frank Menzel
Senckenberg Deutsches Entomologisches Institut, Eberswalder Straße 90, DE-15374 Müncheberg, Germany
Ryszard Szadziewski
Department of Invertebrate Zoology and Parasitology, University of Gdańsk, Wita Stwosza 59, PL-80-308 Gdańsk, Poland
Elisabeth Stur
NTNU University Museum, Department of Natural History, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
Wolfgang Adaschkiewitz
Bismarckstraße 41, DE-28203 Bremen, Germany
Kjell M. Olsen
Biofokus, Gaustadalléen 21, NO-0349 Oslo, Norway
Torstein Kvamme
Norwegian Institute of Bioeconomy Research (NIBIO), Department Invertebrate Pests and Weeds in Forestry, Agriculture and Horticulture, P.O. Box 115, NO-1431 Ås, Norway
Anders Endrestøl
Norwegian Institute for Nature Research, Sognsveien 68, NO-0855 Oslo, Norway
Sigitas Podenas
Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
Sverre Kobro
Norwegian Institute of Bioeconomy Research (NIBIO), Department Invertebrate Pests and Weeds in Forestry, Agriculture and Horticulture, P.O. Box 115, NO-1431 Ås, Norway
Lars O. Hansen
Natural History Museum, University of Oslo, P.O. Box 1172 Blindern, NO-0318 Oslo, Norway
Gunnar M. Kvifte
Faculty of Biosciences and Aquaculture, Nord University, N-7729 Steinkjer, Norway
Jean-Paul Haenni
Muséum d’Histoire Naturelle, Rue des Terreaux 14, CH-2000 Neuchatel, Switzerland
Louis Boumans
Natural History Museum, University of Oslo, P.O. Box 1172 Blindern, NO-0318 Oslo, Norway
(1) We document the invertebrate fauna collected from 24 oak canopies in east and west Norway as a contribution to the Norwegian Biodiversity Information Centre’s ‘The Norwegian Taxonomy Initiative’. (2) A snap-shot inventory of the canopies was recorded by means of emitting a mist of natural pyrethrum into the canopies at night using a petrol-driven fogger and collecting the specimens in butterfly nets spread on the ground under the canopy. (3) Almost the entire catch of more than 6800 specimens was identified to 722 species. Out of 92 species new to the Norwegian fauna, 21 were new to science and, additionally, 15 were new to the Nordic fauna. Diptera alone constituted nearly half of the species represented, with 61 new records (18 new species). Additionally, 24 Hymenoptera (one new species), six oribatid mites (two new species) and one Thysanoptera were new to the Norwegian fauna. (4) Our study emphasizes the importance of the oak tree as a habitat both for a specific fauna and occasional visitors, and it demonstrates that the canopy fogging technique is an efficient way to find the ‘hidden fauna’ of Norwegian forests. The low number of red listed species found reflects how poor the Norwegian insect fauna is still studied. Moreover, the implication of the IUCN red list criteria for newly described or newly observed species is discussed.
