期刊
DIVERSITY-BASEL
卷 13, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/d13070332
关键词
Quercus; oak; canopy; fogging; new species; inventory; Norway
资金
- Norwegian Biodiversity Information Centre [70184219, 70184228]
This study documented the invertebrate fauna collected from oak canopies in Norway, identifying a large number of new species. The research highlights the importance of oak trees as habitats and the efficiency of canopy fogging technique in discovering hidden fauna. The low number of red listed species found also indicates the need for further study of Norwegian insect fauna.
(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.
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