Insect assemblage associated with the polypore Fomitopsis pinicola: a comparison across Fennoscandia

• Published in: Entomologica Fennica
• Main Authors: Komonen, Atte, Jonsell, Mats, Økland, Bjørn, Sverdrup-Thygeson, Anne, Thunes, Karl
• Format: Article in Journal/Newspaper
• Language: English
• Published: This journal is published jointly by the Entomological Society of Finland, the Lepidopterological Society of Finland, the Societas Entomologica Helsingforsiensis and the Entomological Club of the Zoological and Botanical Society of Turku. 2004
• Subjects: Norway; Fennoscandia
• Online Access: https://journal.fi/entomolfennica/article/view/84213; https://doi.org/10.33338/ef.84213

We compiled the data on the insect assemblage occurring within the polypore Fomitopsis pinicola from six regions in Finland, Sweden and Norway. The species composition and diversity of the primary fungivorous beetles (Cisidae and Anobidae) were similar across Fennoscandia. The beetles Cis glabratus Mellié (Cisidae) and C. quadridens Mellié were the most frequent species occurring in 70% and 23% of the fruiting bodies on average. Sulcacis fronticornis (Panzer) and Ennearthron cornutum (Gyllenhal) were relatively common in southern Sweden, while absent from the study regions in Norway and Finland. Similarly, Cis bidentatus (Olivier) and Cis dentatus Mellié were rather common inNorway, but almost absent from the Finnish samples. Species relative abundances in the six study regions exhibit more variation, which to some extent corresponds the biogeographical zones. Our results on the high similarity in species composition indicate deterministic nature of the F. pinicola-associated insect assemblage over large spatial scales. On the other hand, climatic factors probably have an impact on the relative abundance of species.