BackgroundIn 2016, saproxylic Diptera associated with aspen (Populus
tremula L.) logs were studied in the Kivach Nature Reserve, Russian Karelia, using trunk emergence traps.New informationEleven rare species of Diptera (families Limoniidae, Scatopsidae, Axymyiidae, Mycetophilidae, Sciaridae, Platypezidae, Syrphidae and Clusiidae) with poorly known distribution and ecology were recorded. For each species, basic diagnostic characteristics were provided along with the information on microhabitats. An attempt was also undertaken to outline possible associations with wood-decaying macrofungi using nonparametric correlation.
Regeneration of natural forest structures and dead wood has a key role in the long-term maintenance of biodiversity in most parts of the boreal zone. In order to obtain benchmarks for practical dead wood management rapidly, we utilised unintended historical experiments in land use by studying the recovery of forests surrounding abandoned villages along 2.5-km transects in NW Russia. The signs of past human forest use declined as a function of distance from villages. We found that the closest forests were 130 yr old or younger and contained very few elements typical of natural forests. Forests at a distance of between 1 and 1.5 km were older than 150 yr but showed marks of selective cuttings and had a less complete continuum of dead wood than forests that were 2-2.5 km from the villages. The most remote stands, which were generally older than 200 yr, predominantly had no signs of past forest use and had the most diverse dead wood composition. Our study shows that full recovery of the dead wood continuum in middle boreal forests is a slow process and also that less intensive past forest use can have a significant effect on the dead wood continuum.
Herein we present a checklist of aphyllophoroid fungi of the Solovetsky Archipelago, located in the White Sea (Arkhangesk Region, European Russia). The annotated list contains 275 species belonging to 139 genera of aphyllophoroid basidiomycetes (Agaricomycetes, Basidiomycota). Eight species (Athelia bombacina, Ceraceomyces tessulatus, Clavariadelphus truncatus, Clavaria zollingeri, Clavulinopsis luteoalba, Hyphoderma obtusiforme, Phanerochaete jose-ferreirae, and Ramaria obtusissima) are recorded from the Arkhangelsk Region for the first time, and 23 species were recorded for the first time from the Solovetsky Archipelago. Most records are documented by herbarium specimens.
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