"Flora of Russia" on iNaturalist: a dataset.

Background: The "Flora of Russia" project on iNaturalist brought together professional scientists and amateur naturalists from all over the country. Over 10,000 people were involved in the data collection.

New Information: Within 20 months, the participants accumulated 750,143 photo observations of 6,857 species of the Russian flora.

Species richness and taxonomic composition of trawl macrofauna of the North Pacific and its adjacent seas.

A checklist is presented of animal species obtained in 68,903 trawl tows during 459 research surveys performed by the Pacific Research Fisheries Center (TINRO-Center) over an area measuring nearly 25 million km in the Chukchi and Bering seas, Sea of Okhotsk, Sea of Japan and North Pacific Ocean in 1977-2014 at depths of 5 to 2,200 m. The checklist comprises 949 fish species, 588 invertebrate species, and four cyclostome species (some specimens were identified only to genus or family level). For each species details are given on the type of trawl (benthic and/or pelagic) and basins where the species was found.

Dynamics, kinetics, and transport properties of the one-dimensional mass-disordered harmonic lattice.

In the present paper we thoroughly investigated the dynamics, kinetics, and the transport properties of the one-dimensional (1D) mass-disordered lattice of harmonic oscillators with the number of particles N < or =5000. The thermostat is simulated by the Langevin sources. Our method is adequate to any 1D lattice with linear equations of motion.

[The calcium and magnesium ion metabolic characteristics of water plants in different taxonomic groups].

Ca2+ and Mg2+ metabolism was investigated in 7 angiosperms and 3 moss species from fresh water of different mineral content. It is considered that adaptation in the water with low mineral content is connected with the decrease in salt wastes of an organism. The adaptation of ion-transport system of aquatic plants to living under conditions of low mineralization is higher in mosses than in angiosperms.