Author Correction: Chronicles of nature calendar, a long-term and large-scale multitaxon database on phenology.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Chronicles of nature calendar, a long-term and large-scale multitaxon database on phenology.

We present an extensive, large-scale, long-term and multitaxon database on phenological and climatic variation, involving 506,186 observation dates acquired in 471 localities in Russian Federation, Ukraine, Uzbekistan, Belarus and Kyrgyzstan. The data cover the period 1890-2018, with 96% of the data being from 1960 onwards. The database is rich in plants, birds and climatic events, but also includes insects, amphibians, reptiles and fungi.

Induction of Secondary Carotenogenesis in New Halophile Microalgae from the Genus Dunaliella (Chlorophyceae).

We report on the effects of high light irradiance (480 µmol quanta/(m(2)·s)) and salinity (160 and 200 g/liter NaCl) on culture growth as well as on cell lipid pigment and fatty acid (FA) composition in three novel strains of halophile microalga from the genus Dunaliella. Based on the ITS1-5.8S rRNA-ITS2 sequence and on the capability of accumulation of secondary (uncoupled from the photosynthetic apparatus) β-carotene, the strains Dunaliella sp.

[HYDROBIOCENOSES--A MODEL SYSTEM OF ASSOCIATIVE SYMBIOSIS].

Evolutionary formed mechanisms, that preserve and support microorganism populations in any environmental conditions up to extreme, that are the base of survival strategy, were analyzed. Natural mechanisms, that support biodiversity and stability of ecosystems of natural water bodies, are shown to determine structuredness of hydrobiont communities by associative symbiosis type.