As a result of the investigation of algogroups of coal-mining workings of mine administration “Zahidne” 44 species of algal from five departments (Cyanophyta, Chlorophyta, Bacillariophyta, Xanthophyta, Eustigmatophyta) were revealed. The coefficients of mesophility and xerophylity are calculated. The general spectrum of vital forms of algae species in spring period is represented by formula Ch14B5X3H2C2P1 (27), in summer period – Ch9P8B7X4H4C2V1CF1 (36). Key words: coal dump, soil algae, vital forms.
Epi- and endozoochory are well explored phenomena that contribute to the distribution patterns of plant seeds, spores or fruits by vertebrates. It is less known how soil algae may be redistributed due to analogous interactions. We describe the participation of saprophage Rossiulus kessleri (Julidae, Diplopoda) in soil algae redistribution. The research was carried out in a park area of a large industrial megacity in the Dnipro steppe region (Ukrainian North Steppe subzone), Dnipro city. Research material was collected according to zoological and algological methods. The leaf litter of tree species (ash maple Acer negundo, Italian poplar Populus deltoides, locust Robinia pseudoacacia, European white elm Ulmus laevis, Norway maple Acer platanoides) and living diplopods were collected within 1 m2 quadrats along transects. Millipedes were maintained without feeding for five days, after which they were fed with the litter collected previously. Identification of algoflora was conducted in washes from the surface of diplopods’ bodies, its gut washes, in diplopods’ excretions and leaf litter washes. In the leaf litter, as R. kessleri’s feeding base, 14 soil algae species were identified—Nostoc punctiforme, Bracteacoccus minor, Mychonastes homosphaera, Neospongiococcum sp., Chlamydomonas sp., Chlorella vulgaris, Stichococcus bacillaris, Pseudococcomyxa simplex, Desmococcus olivaceus, Trebouxia spp., Klebsormidium flaccidum, Nephrodiella phaseolus, Navicula pelliculosa and Vischeria magna. In body surface washes, five soil algae species were identified, in gut washes seven algae species were found, while in excretions, just four were observed. It was established that not all algae species from the gut washes of R. kessleri were present in excretions. The presence of some representatives of soil algae, for example, Chlorella vulgaris and Vischeria magna, in natural park litter, body surface washes, gut washes and in excretions of R. kessleri, suggests that the given species pass through the diplopod’s gut and stay undamaged. This indicates that soil saprophage R. kessleri contributes to the dispersal of some soil algae representatives through epi- and endozoochory. Our results represent novel contributions to the knowledge of zoochory. It was shown that animals can be involved in dispersal of not only plant parts but also entire organisms, although it is unknown at what scale diplopods contribute to the diversity and dispersal of algae.
In the article is determined that the coal industry in many foreign countries was carried out reform, which results in the search for effective ways of taking organizational, financial, socioeconomic and technical solutions. Briefly considered the experience of organizational changes in the coal industry countries such as Poland,
Современные исследования проблемы развития экономики направлены на формирование экономической модели, обеспечивающей устойчивость в условиях неопределенности и рисков, которые связаны с глобальной либерализацией торговли и волатильностью цен на сырьевые ресурсы, политикой и биофизическими изменениями (включая парниковый эффект). Это определило необходимость совершенствования инструментария государственного регулирования аграрного производства. Выявлено, что в новых условиях США и ЕС развивают и корректируют меры государственной поддержки аграрного сектора, такие как: стабилизацию доходов фермерских хозяйств, защиту внутреннего сельскохозяйственного рынка и экспансию на внешние рынки, комплексное развитие сельских территорий, но не могут обеспечить устойчивости сельской экономике. Важно изучить опыт, накопленный развитыми странами, и на этой основе оптимизировать аграрную политику России.
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