Fungivorous beetles in basidiocarps of Fomes fomentarius respond differently to microhabitat variables

Abstract

Abstract. This study investigates the influence of microhabitat on the presence of several species of fungivorous beetles in basidiocarps of Fomes fomentarius (L.) Kickx. All dead basidiocarps of F. fomentarius from fragments of forest in an agricultural landscape in Norway were sampled and dissected, and their content of Cisjacquemarti Mellie, 1848/C. alter (Silvferberg, 1991) (did not distinguish between individuals of these two species), C. bidentatus (Olivier, 1790), C. lineatocribratus Mellie, 1848, Ennearthron cornutum (Gyllenhal, 1827) (Ciidae) and Dorcatoma dresdensis Herbst, 1792 (Anobiidae) were identified. Multiple logistic regression models revealed that these species responded differently to the microhabitat variables. The incidence of these beetles was associated with the size (volume), position (height above ground) and moisture content of the basidiocarps. The analyses also indi cated possible interspecific interactions between some of the beetles. The presence of some of the species mainly in basidiocarps at particular stages of degradation indicates a successional pattern of occurrence of these species. Together these results indicate that basidiocarps of F. fomentarius are a heterogeneous resource for fungivorous beetles. This has implications for conservation: To pre serve the diversity of fungivores, sufficient dead wood has to be left in forests to assure an adequate supply of F. fomentarius basidiocarps of different quality.

Postfire Succession of Saproxylic Arthropods, with Emphasis on Coleoptera, in the North Boreal Forest of Quebec

“…Furthermore, increasing moisture content favors both growth and diversity of wood-decaying fungi (Erickson et al 1985, Edmonds and Eglitis 1989, Lindblad 1998, which in turn greatly inßuence insect fauna (Jonsell and Weslien 2003). Several insect species depend on wood-decaying fungi, because their activity is intimately related to hyphae growth and to the physical characteristics of the substrate (Irmler et al 1996, Rukke 2002. In this study, fungal development presumably attracted mycophagous and saprophagous Coleoptera (Atomariinae, Pteryx sp., Ampedus spp.)…”

“…Then, secondary phloemfeeding and detritivorous species and fungivorous species feeding on the growing mycelia quickly follow the initial colonizing species. The development of sporocarps attracts a speciÞc insect community as the subcortical habitat disappears with bark shedding (Kaila et al 1997, Rukke 2002, Jonsell and Weslien 2003.…”

Fungivore host‐use groups from cluster analysis: patterns of utilisation of fungal fruiting bodies by ciid beetles

“…Not only fruiting body age, but also fruiting body structure, hardness, moisture content, and degree of exposure, also rot type and the presence of other fungivores, have been suggested as factors affecting host use by ciids (Paviour‐Smith, 1960a; Lawrence, 1973; Klopfenstein & Graves, 1989; Thunes, 1994; Økland & Hågvar, 1994; Thunes & Willassen, 1997; Olberg & Andersen, 2000; Thunes et al ., 2000; Rukke, 2002; Jonsell & Nordlander, 2004). Some, or all, of these may well determine whether or not a particular located host is colonised, and affect length of occupancy.…”

Beetles (Coleoptera) associated with the tinder fungus, Fomes fomentarius (L.) Fr. (Polyporales: Polyporaceae) in Ukraine

“…Tinder fungi from the various systematic groups have different species compositions of mycetobiont complexes due to differences in the chemical composition of fruiting bodies, the density of 'tissues' of carpophores, the term of existence, etc. In several countries, many researchers have paid attention to these specific insects as well as to the insect complexes in general (Jonsell, Nordlander, 1995;Rukke, 2002;Schigel, 2002Schigel, , 2009Schigel, , 2011aSchigel, , 2011bTatarinova, Nikitsky, Dolgin, 2008;Jonsell et al, 2016;Andrési, Tuba, 2018;Sazhnev, Mironova, 2019). Some studies of these complexes were also conducted in Ukraine (Drogvalenko, 1997a(Drogvalenko, , 1997b(Drogvalenko, , 2007(Drogvalenko, , 2016Mateleshko, 2005;Mateleshko, Lovas, 2010;Diedus et al, 2022).…”