Regular issue 10(4) of the journal «Nature Conservation Research» has been released

This issue of the journal «Nature Conservation Research» contains articles devoted to various taxonomic groups of organisms in Europe, Asia, and South America. This issue includes 8 articles. trnL metabarcoding analysis reveals the plant dietary composition of the Endangered Panthera tigris jacksoni (Felidae) in Malaysia. Phytoplankton properties have been studied in Lake Sevan (Armenia). Biology of two species of ground-nesting eumenine wasps and their cuckoo-wasp parasites was studied in the Tarkhankut Nature Park, Crimea. Pathogens have been investigated in Bradypus torquatus in Brazil. The influence of environmental factors on Cygnus olor nesting site selection in a rocky skerry landscape has been assessed. Results of long-term research of threatened insect species have been reviewed for selected regions of European Russia. Nine lichen species were found for the first time in Russia from Utrish State Nature Reserve (the North-West Caucasus), and Iris junonia is considered a new species for the Azerbaijan flora.