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1
Kadirova, Khulkaroy. "Floristic composition of Sukh District of Fergana Region." E3S Web of Conferences 452 (2023): 01039. http://dx.doi.org/10.1051/e3sconf/202345201039.
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The article reviews the research conducted in the Sukh district, which is currently a tourism region of Uzbekistan, the floristic composition of the Sukh district and the types of ephemeral and ephemeroid plants in Sukh district, the list of medicinal plants among them, and the distribution percentage in the district in the section of families are highlighted.At the same time, based on the information provided in the existing herbarium funds and literature, brief information about the composition of the species and its distribution areasand some discussions on carrying out targeted research on ephemeris and ephemeroids distributed in the flora of Sukh district are presented.
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Oksana, Shevchuk, Kryklyva Svetlana, Shevchuk Victoria, Khodanitska Olena, Tkachuk Olesya, and Vergelis Victoria. "Species structure of the ephemeroids of the regional park of local importance «Nemyriv Pobuzhia» near the village of Hvozdiv." ScienceRise:Biological Science, no. 1(22) (February 28, 2020): 39–43. https://doi.org/10.15587/2519-8025.2020.198951.
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Analyzing the literature data, it was found, that the majority of ephemeroids that grown in the territory of Ukraine are directly or indirectly influenced by humans, which leads to accelerated rates of decrease in their number. Urban factors influence not only the species structure of populations, but also their absolute quantitative indicators. <strong>The purpose of the research </strong>was to study the floristic composition of ephemeroid plants in the territory of a landscape park of local importance «Nemyrivske Pobuzhya» near the village of Gvozdiv, Nemyriv, district of Vinnytsia region. <strong>Materials and methods. </strong>The study of the floristic composition of ephemeroid plants in the territory of the landscape park of local importance "Nemyrivske Pobuzhzhya" was carried out by the expedition-route method, as well as by the accidental-regulatory method - laying of accounting sites with an area of 1 m2. The systematic identification of plants was determined using a designator. The abundance of species was determined by the Gult-Drude scale (with the addition of A. Uranov and P. Yaroshenko). The meeting coefficient (%) was determined by the formula: R = a x 100 / n. <strong>Results. </strong>It was revealed, that on the territory of Nemyrivske Pobuzhya the structure of the ephemeroid plants includes 27 species of plants, belonging to 19 genus, 14 families, 12 orders and 2 classes. Such orders as Ranunculales (7 species or 25.9 % of the total ephemeroid species), Papaverales (4 species or 14.8 %), Liliales (4 species or 14.8 %), Amaryllidales (3 species or 11.1%), Capparales (2 species or 7.4 %) are represented by the largest number Anemone sylvestris L., Ficaria verna L., Viola odorata L., Galanthus nivalis L. were dominant among the species. <strong>Conclusions.</strong> <strong> </strong>It was established, that Galanthus nivalis L. is one species that is growing at the researched area and registered in the IUCN Red List of Threatened Species; and two species (Allium ursinum L. and Galanthus nivalis L.), included in the «European Red List». 6 species of ephemeroids are included in the Red Book of Ukraine: Leucojum vernum L., Allium ursinum L., Galanthus nivalis L., Crocus reticulatus Stev. ex Adams., Pulsatilla grandis Rupr. and Pulsatilla pratensis L. (Mill). 4 species of plants have the status of rare plants of regional importance: Anemone sylvestris L., Dentaria bulbifera L., Dentaria quinquefolia M. Bieb. and Primula veris L.
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Teteryuk, Lyudmila V., Olga E. Valuyskikh, and Olga F. Kirsanova. "Distribution, population status and protection of rare ephemeroids in the Komi Republic." Vestnik Tomskogo gosudarstvennogo universiteta. Biologiya, no. 53 (2021): 89–108. http://dx.doi.org/10.17223/19988591/53/5.
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Here, we report the data on modern state and protection prospects of plant species Anemone altaica Fisch. ex C.A.Mey., Anemone nemorosa L., Anemone ranunculoides L., Ficaria verna Huds. (Ranunculaceae), Corydalis solida (L.) Clairv. (Papaveraceae) and Gagea samojedorum Grossh. (Liliaceae) in the taiga zone of the Komi Republic. These ephemeroid species require a special research due to their biological features (short periods of vegetation in the spring and subtle presence in communities at later dates) and geographic localization. One of the species, Gagea samojedorum is an endemic of the Urals, other species are presented by populations on the border of their distribution areas. Until recently, studies of early-flowering ephemeroids in the north-east Russia have not been performed. However, such studies become more and more important due to an active industrial development of the North. To assess the prospects for the conservation of rare early-flowering ephemeroids, we carried out work to clarify the number of locations of species on the territory of the Komi Republic, compiled maps of their distribution (See Fig. 1), collected and summarized information about the area, the number and the structure of 44 coenopopulations (See Tables 1 and 2), as well as identified limiting factors. It is shown that at the edge of the distribution area, ephemeroid species often have fragmented habitat range due to ecological and phytocoenotical preferences. They occur sporadically in the river and stream floodplains (sometimes at limestones) where soils are moist and fertile. In the floodplain meadows and forests, ephemeroids can form one-two species ecotopical assemblages. The populations of ephemeroids are linear, often with a high number of individuals. Self-recovering of short-root Anemone altaica, A. nemorosa, A. ranunculoides and root-tuber Ficaria verna is made, mainly, by vegetative reproduction. Tuber species Corydalis solida is propagated only by seeds. The ontogenetic structure of populations indicates a decline in seed and vegetative reproduction rate in these species at the edges of distribution areas (See Fig. 2 and 3). The Ural endemic Gagea samojedorum occurs in herbal habitats and sparse forests in foothill and mountain areas of the Ural Mountains, where it forms abundant populations with the prevalence of young individuals. A high reproduction rate of Gagea samojedorum is due to the variability of vegetative reproduction. In the Komi Republic, the anthropogenic impact on the ephemeroid species is low due to a low level of industrial development and population. Natural abiotic and biotic factors are more significant here and may weaken species positions in plant communities, as well as limit the growth, development and self-recovering of the populations. By now, Anemone altaica, A. nemorosa, A. ranunculoides, Corydalis solida, Ficaria verna and Gagea samojedorum have been included in regional Red Books of plants with the protection category 3 (rare). The main reasons for their inclusion are the edge location, small number, isolation of the local populations and often relic origin. Gagea samojedorum is also an endemic species. The object of the UNESCO World Heritage List “Virgin Komi Forests” and the number of regional reserves are important for the preservation of ephemeroid plants in the North.
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Sitpayeva, G. T., I. G. Otradnykh, and I. A. Syedina. "Collection of rare plant species of Kazakhstan in the conditions of the botanical garden of Almaty." Проблемы ботаники южной сибири и монголии 20, no. 1 (2021): 404–8. http://dx.doi.org/10.14258/pbssm.2021081.
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The collection of rare species in the botanical garden of Almaty (Kazakhstan) consists of 36 species of rareplants. The Botanical garden is located in the foothill zone of the Zailiysky Alatau ridge, which is part of the Northern TienShan mountain system. A collection of rare and endemic species from the mountainous regions of the Northern, Western Tien Shan, and the Kazakh Altai was created, but most of their work was carried out in the mountains of the NorthernTien Shan. The largest species composition of the collection are groups of plants of the genera Tulipa – 25 %, Iris –14 %,Allium – 8.3 %. The largest ecological group in the collection of rare species is represented by ephemeroid geophytes. Introduction tests have shown that ephemeroid drought-resistant plants adapt best to the conditions of the foothill zone of theTrans-Ili Alatau. Xerophyte plants are short-lived, often suffer from the accumulation of snow in winter and the abundance of spring precipitation. Mesophytic plants are prone to drying out from lack of humidity and high air temperaturesin the summer.
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Кuzmishyna, I., V. Vojtiuk, V. Derkach, N. Merlenko, and O. Bezsmertna. "Spring flora of Lutsk and Partisan forestry of Kivertsiv National Natural Park "Tsumanska Puscha"." Bulletin of Taras Shevchenko National University of Kyiv. Series: Biology 85, no. 2 (2021): 27–32. http://dx.doi.org/10.17721/1728_2748.2021.85.27-32.
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In the frame of identification of the Ukrainian Polissya rare vegetation the most attention is paid to the boreal species and groups. Deciduous forests with sinuses of spring ephemeroids remain unstudied in Polissya that's why the urgency of their research in the forests of Volyn Polissya is important, especially in the Kivertsy National Nature Park "Tsumanska Pushcha". The research of the spring ephemeroids composition and rare plant species identification on the territory of the plots of "Volyn Military Forestry" and "Tsumanske Forestry" within the Kivertsy National Nature Park "Tsumanska Pushcha" were aim of the study. At the beginning of the 2021 vegetation period 16 spring ephemeroids were found in 38 parcel of Lutsk forestry and 41 parcel of the Partisan Forestry (both belong to the Kivertsy NPP "Tsumanska Pushcha") by the employees of the NPP together with the scientists of Volyn National University named after Lesya Ukrainka. There were identified Adoxa moschatellina L., Allium ursinum L., Anemone nemorosa L., A. ranunculoides L., Corydalis cava Schweigg. et. Korte., C. solida (L.) Clairv., Dentaria glandulosa Waldst. & Kit., Ficaria verna Huds., Hepatica nobilis Mill., Isopyrum thalictroides L., Lathraea squamaria L., Lathyrus vernus (L.) Bernh., Mercurialis perennis L., Primula veris L., Pulmonaria obscura Dumort., Ranunculus cassubicus L. The monitoring research was set for populations of Allium ursinum (Ukrainian Red Data Book) and regional rare species in Volyn Region: Corydalis cava, Dentaria glandulosa, Hepatica nobilis, Isopyrum thalictroides, Hepatica nobilis (spring ephemeroids), Vinca minor (spring-flowering species) and Hedera helix (wintergreen species). The studied ephemeroid plants amount 2.52 % of the total number of vascular plants of Tsumanska Pushcha and 1.14 % of the flora of Volyn Polissya. According to the results of monitoring studies for Allium ursinum, the coenopopulation of the species generally has a left-handed spectrum, remains homeostatic, and the number of individuals is maintained by seed and vegetative propagation. Creation of the ecological trail "Spring-flowering plants of Kivertsy NPP "Tsumanska Pushcha" is proposed.
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Abdurazzakova, Maftuna G'ayrat qizi. "THE PROPERTIES OF MEDICINAL PLANTS." GEOGRAPHIC RESEARCH: INNOVATIVE IDEAS AND PROSPECTS FOR DEVELOPMENT 1, no. 1 (2023): 3. https://doi.org/10.5281/zenodo.7506172.
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This article describes in detail the geographical distribution of medicinal plants, their use in medicine, the chemical composition, use and properties of medicinal plants.There is also information about the role of medicinal plants in human life.
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Elesova, Natalja, Marina Silanteva, and Liudmila Sokolova. "Rare Plants and Plant Communities of the Projected “Togul” National Park (Altai Region)." BIO Web of Conferences 16 (2019): 00007. http://dx.doi.org/10.1051/bioconf/20191600007.
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The value of the Salair Ridge territory for the creation of the “Togul” National Natural Park is determined primarily by the natural complex of black coniferous forests with the participation of relict plant species of the Miocene-Pliocene coniferous-deciduous forests and a group of early flowering ephemeroid plants, old-aged Pinus sibirica, Picea obovata and linden forests and a variety of tall grasses. Based on the performed geobotanical descriptions, the phytocenotic characteristic of linden forests was compiled. Information is provided on the location of 10 rare and endangered species of plants and fungi found during a survey of the territory of the planned national park.
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SHavkat Rashidovich, Ubaydullayev, and Mamatov Farmon Murtozevich. "The phytogenic effect of different-aged black saxaul plants on the productivity of wormwood-ephemeral vegetation under the conditions of Karnabchul." Ekologiya i stroitelstvo 01, no. 01 (2019): 30–39. http://dx.doi.org/10.35688/2413-8452-2019-01-005.
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The aim of the study is to determine the effect of different-age black saxaul plants on the productivity of wormwood-ephemeral vegetation through the study of the phytogenic field of this ephemeroid species. The phytogenic field of black saxaul has been studied by the phytomer method in the desert Karnabchul. The study showed that its influence in the minimum phytogenic field on the productivity of wormwood-ephemeral vegetation is negative, in the external part of the phytogenic field on bluegrass and forbs is positive, and on wormwood and sedge remains negative. The highest productivity indices are observed in them between the outer and inner and outer parts of the phytogenic field of the middle-aged generative plants of the edificator.
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Shamsutdinov, N. Z., V. V. Sanzeev, and Z. Sh Shamsutdinov. "Ecological restoration of fodder productivity of degraded pastures in the foothill desert zone of Central Asia." IOP Conference Series: Earth and Environmental Science 901, no. 1 (2021): 012033. http://dx.doi.org/10.1088/1755-1315/901/1/012033.
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Abstract Irrational, ecologically unregulated economic activity in the vast deserts of Central Asia has led to biodiversity depletion, decrease in the fodder productivity of natural pastures and, as a result, deterioration in the fodder base of grassland farming. Forage production of these degraded pastures requires ecological restoration. To enrich the species composition and to increase the fodder productivity of degraded pastures we conducted strip sowing of black saxaul. Restorative succession on degraded pastures led to the formation of a long-term halophytic shrub-ephemeral pasture community consisting of two layers: upper (I) layer represented by black saxaul and lower (II) layer composed of ephemeroids, ephemerals and annual saltwort. Ephemerals are short-growing fodder plants (March–April); Haloxylon aphyllum refers to long-growing (226–242 days) fodder plants, which sprout in the period from late March to early December. Annual salsolas Salsola carinata and Halocharis hispida develop well under the crown of Haloxylon aphyllum. Here they are much larger than between the crowns. The shrub-ephemeral pasture community is dominated by annual grasses and Poa bulbosa. They are mainly concentrated on the outer border of the undercrown ring and are characterized by lush development. In the halophytic semi-shrub-ephemeroid pasture community, the total yield of forage mass of ephemera was 0.90 t/ha; the total yield of forage mass of annual saltwort was 0.14 t/ha; the total yield of forage mass of Haloxylon aphyllum was 0.89 t/ha; the total yield of forage mass was 1.93 t/ha.
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ШКУРА, Тетяна Володимирівна. "ІСТОРІЯ ВИВЧЕННЯ ТА ОХОРОНИ РІДКІСНИХ СТЕПОВИХ ЕФЕМЕРОЇДІВ ЛІВОБЕРЕЖНОГО ПРИ-ДНІПРОВ'Я". Біологія та екологія 5, № 2 (2018): 40–48. https://doi.org/10.5281/zenodo.2366550.
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The results of history of study and guard of rare steppe ephemeroids of Left-bank Pridniprov’ya are resulted in the article. Four periods and two stages which differ different directions are debeneesse selected. The first period (the middle of the XIX th – the end of the XIX th century) is characterized information about the separate locations of steppe ephemeroids, which found out during floral studies. In the third period (1970–2000) priority is sozologichniy direction of researches, next to floristichnim and fitocenotichnim; all together they were directed on an exposure and maintainance of new locations of rare steppe plants, brought to the first edition of the Red book of Ukraine (Crocus reticulatus Steven ex Adam, Bulbocodium versicolor (Ker. Gawl.) Spreng.), and also to the lists of plants which are guarded in the Poltava area (Bellevalia sarmatica (Pall. ex Georgi) Woronow, Hyacinthella leucophaea (K. Koch.) Schur, Muscari neglectum Guss. ex Ten.). The first stage (1970–1990) differs the new finds of Crocus reticulatus, Bulbocodium versicolor, Hyacinthella leucophaea (over 70 standards are kept in the funds of PW) and creation of a few botanical zakaznikiv, on initiative the Poltava botanists. Most of locations all five kinds was discovered in 90th (second stage) during optimization naturally commandment networks of the Poltava area. Most steppe areas with numeral population of rare steppe ephemeroides entered in the complement of naturally commandment networks (29 objects). The feature of fourth period (2000 till present time) is a lead through of complex botanical researches on existent and designed territories naturally commandment networks, in thereby establishment of population surveys is in LP, theoretical and practical developments in relation to reelecting of regional and national eko-networks.
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Shamsutdinov, Nariman, Musa Shagaipov, and Vadim Sanzheev. "Ecological restoration of degraded pasture lands in the Circum-Caspian Sea semi-desert." E3S Web of Conferences 222 (2020): 02023. http://dx.doi.org/10.1051/e3sconf/202022202023.
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For the ecological restoration of desert lands, the dominant species of fodder plants of the natural flora of the violent and patient ecology were used: Krascheninnikovia ceratoides (L.) Gueldenst., Bassia prostrata (L.) A.J. Scott, Camphorosma lessingii Litv., Artemisia lerhiana L., A. pauciflora Web., Poa bulbosa L. in various quantitative ratios in mixtures. Polydominant pasture ecosystems occupy different tiers of height in the aboveground sphere: semi-shrubs – up to 120-140 cm, dwarf semi-shrubs – up to 45-75 cm, ephemeroid grasses – up to 15-25 cm. This ensures efficient placement of the leaf apparatus for efficient photosynthesis. In the underground sphere, various life forms of fodder plants form root systems and develop various ecological niches for more efficient use of water and mineral resources of a large volume of soil. Polydominant pasture ecosystems, which include various plant life forms, provide higher feed production, which exceeds the production of natural pastures by 3-5 times.
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Godin, V. N. "Androdioecy in Ranunculus ficaria ssp. ficaria (Ranunculaceae)." Ботанический журнал 109, no. 2 (2024): 176–87. http://dx.doi.org/10.31857/s0006813624020058.
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Androdioecy was for the first time studied in detail in the fibrous-rooted herbaceous ephemeroid polycarpic plant Ranunculus ficaria ssp. ficaria in the Moscow Region during 2019–2023. It has been established that this subspecies produces two types of flowers: perfect and staminate (remains of carpels with reduced non-functioning stigmas are preserved). Perfect flowers and their component parts are always larger than those of staminate flowers. Populations consist of three types of individuals: with perfect flowers exclusively, with perfect and staminate flowers, and with staminate flowers only. Synflorescence of R. ficaria ssp. ficaria is a closed thyrsus, the subunits of which are dichasia. In andromonoecious plants, perfect flowers are located on the top of the thyrsus axis and take a terminal position in paracladial dichasia, while staminate flowers are formed exclusively on the lateral axes of dichasia. In the five studied populations, plants with perfect flowers predominate (from 86.3 to 93.7%). Over a five-year observation period, individuals of different sexual forms did not change the sex of flowers, and the sex ratio in populations remained stable without sharp fluctuations.
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Danilova, N. S., S. Z. Borisova, N. N. Egorova, and D. N. Androsova. "Phenological stability of steppe plants under changing climate conditions in Central Yakutia." Arctic and Subarctic Natural Resources 29, no. 4 (2024): 589–96. https://doi.org/10.31242/2618-9712-2024-29-4-589-596.
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The response of biota to both global and regional climate changes represents a critical topic extensively examined in the scientific literature. This study aims to investigate the correlation between climatic changes in Central Yakutia and the phenological development of three indigenous steppe plant species. The species under consideration include Gagea pauciflora, Phlox sibirica, and Phlomoides tuberosa, which belong to different rhythmological groups. The research employed data from long-term phenological observations conducted in accordance with the methodology established by I.N. Beydeman (1974). A comprehensive analysis of the long-term climatic and phenological data reveals that the changing climate in Central Yakutia elicits a modest yet complex phenological response among the studied species. Notably, Gagea pauciflora, an ephemeroid, demonstrates the highest degree of phenological stability over a 50-year observation period, with all recorded shifts in its phenological development remaining statistically insignificant at the 0.05 level. The seasonal development of Gagea pauciflora occurs primarily in May and June and exhibits minimal sensitivity to meteorological conditions, indicating the species’ resilience to spring temperature fluctuations. Statistically significant alterations in phenological timing were noted exclusively during the vegetation termination phase for Phlox sibirica and Phlomoides tuberosa. The observed inertia in the phenological responses of these species to the climatic changes in Central Yakutia underscores a diverse array of adaptations among plants to northern environmental conditions, tenabling them to resist regional climate shifts and sustain phenological stability.
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Gasanov, G. N., T. A. Asvarova, K. M. Gadzhiev, et al. "Concentration and reserves of nitrogen in soils and plant matter in blocks of grass ecosystems of the North‐Western Precaspian region, Russia." South of Russia: ecology, development 18, no. 2 (2023): 33–43. http://dx.doi.org/10.18470/1992-1098-2023-2-33-43.
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Aim. Determination of phytocenosis productivity, nitrogen concentration and reserves in blocks of plant associations and by soil types in the North‐Western Precaspian region of Russia. Methods. Comprehensive research on the accumulation of organic matter and nitrogen in five blocks of plant matter, six plant associations and three types of soil by season using well‐known methods of accounting and analysis of soils and plants. Results. The regularities of phytomass formation, changes in nitrogen concentration and reserves in the main soil types and six plant associations for the 2011–2018 seasons were revealed. Conclusions. Ephemeroid‐wormwood‐cereal, ephemeroid‐wormwood, cereal‐wormwood, forb‐campfire and mixed‐grass‐campfire plant communities formed on light chestnut soil are the most productive, with a total productivity of 24.34 t/ha. The maximum nitrogen concentration was observed in the cereal‐wormwood, wormwood‐saltwort, forb‐saltwort and cereal‐saltwort associations – 1.9, 1.97, 2.2, and 2.57%, respectively, which is due to the predominance of Artemisia taurica Willd., Artemisia lercheana Web.ex Stechm. and Salsola iberica Sennen&Pau. In associations where there are representatives of the Poaceae, Brassicaceae and Caryophyllaceae, nitrogen decreases to 1.72–1.74%. Its value was higher on light‐chestnut soil, being 1.82% of absolutely dry mass, while on meadow‐chestnut soil it decreased to 1.75 and on saline soil is typically 1.38%. In the root mass of plant associations, its indicators were 3.2 times less than in the above ground mass. Nitrogen reserves by blocks of plant matter formed the following decreasing series: roots ≥ green mass ≥ rags ≥ felt. In the input part of the balance in plant associations, 171.6 nitrogen accumulates on light‐chestnut soil, 63.1 on meadow‐chestnut soil, 49.1 kg/ha on automorphic typical saline soil, and 171.9; 64.3 and 58.1 kg/ha in the expenditure part, respectively. the balance of nitrogen in the first type of soil is formed with a minimum deficit of 0.6 kg/ha, 1.2 and 9 kg/ha, respectively.
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Terekhov, A. G., G. N. Sagatdinova, B. A. Murzabaev, E. N. Amirgaliyev, and R. I. Mukhamediev. "Dynamics of the state of ephemeral and ephemeroid plants in South Kazakhstan according to MOD13Q1A1(NDVI) data for 2000–2022." Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa 21, no. 4 (2024): 188–98. http://dx.doi.org/10.21046/2070-7401-2024-21-4-188-198.
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Gasimova, Khatira G., Rena T. Abdiyeva, and Valida M. Ali-zade. "FEATURES OF THE FLUCTUATION OF THE EPHEMEROUS-EPHEMEROID SYNUSION IN THE SEMI-DESERT PHYTOCENOSIS OF THE KURA-ARAZ LOWLAND IN CONNECTION WITH CLIMATIC CHANGES." Journal of the Belarusian State University. Ecology., no. 3 (September 25, 2021): 11–17. http://dx.doi.org/10.46646/2521-683x/2021-3-11-17.
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The dynamics of semi-desert herbaceous phytocenoses was studied under the conditions of the Kura-Araz lowland on permanent model sites (10×10 m). Based on seven-year (2014–2020) stationary observations, regularities of seasonal and annual fluctuations of cereal-forb and legume-forb phytocenoses were revealed in connection with weather conditions. The analysis of data on the long- term dynamics of their species composition, structure, stock of the raw above-ground part is carried out. The α-diversity is estimated by generally accepted indices, the results of phenological observations are given. It was found that in the seasonal dynamics of plants, the beginning of the growing season depends on the air temperature in March, and the end of the cycle depends on the air temperature in May-early June. The optimal dates for the mass development of grasses are the beginning and the middle of May. In the case of an increased norm of atmospheric precipitation and a late onset of summer heat, this pattern may be violated, and the dates are shifted to the end of May – beginning of June. Over the years of observations in the cereal-forb phytocenosis of 19 species, 9, and in the legume-forb phytocenosis of 17 species, 5 turned out to be constant. The total projective cover ranged from 50 (dry years) to 100 % (wet years). The assessment of α-diversity showed that the species diversity of phytocenoses increased in years with a high amount of atmospheric precipitation in May. A linear dependence of phytomass on the total amount of atmospheric precipitation for March-June was revealed. It was found that the best accumulation of herbal phytomass is influenced by the amount of precipitation in late spring. The most resistant to warming plant species have been identified. These are mainly cereals with an average feed value: Avena eriantha, Bromus japonicus, Bromus rubens, Eremopyrum orientale, Lolium rigidum and weed herbs – Capsella bursa- pastoris, Carduus pycnocephalus, Convolvulus arvensis, Erodium cicutarium, Lepidium draba, Xanthium strumarium, the last species is an invasive plant. Among the representatives of legumes, only one species, Medicago minima, turned out to be relatively resistant to high air temperatures. It was found that of the total herbage, only 35.5 % of species can withstand a warming of 1.5–2 °C.
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Fomina, Tatyana I. "Biological features of the rare species <i>Ixiolirion tataricum</i> (Pall.) Herb. in the forest-steppe conditions of Western Siberia." Samara Journal of Science 12, no. 2 (2023): 86–90. http://dx.doi.org/10.55355/snv2023122113.
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The results of a study of the development and seed reproduction of the Lavender Mountain Lily, Ixiolirion tataricum (Pall.) Herb. introduced to Novosibirsk are presented. Phenorhythmotype of the species is an early-summer flowering hemi-ephemeroid, which grows in the third decade of April, blooms in June, bears fruit in July, and completes the growing season in late Julyearly August. The seasonal development lasts 94102 days. The real seed productivity (RSP) averages 11 1 pcs. of seeds per capsule, while the conditional real seed productivity (CRSP) is three times higher. Laboratory germination of seeds in the harvest year up to 98% on stratification at +4C. The economic longevity of seeds at room storage is preserved for 34 years. With soil sowing of seeds, seedlings appear next spring and the plants bloom in the 4th6th year. I. tataricum is non-sustainable in the collection of the botanical garden, the duration from the appearance of seedlings to the complete death of individuals doesnt exceed 7 years. Maintaining of I. tataricum in the conditions of forest-steppe of Western Siberia as a rare species and valuable ornamental perennial is possible by regular renewal with local seed reproductions.
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Tuhvatullina, Lenvera. "INTRODUCTION OF ALLIUM GIGANTEUM REGEL AND ITS BIOCHEMICAL COMPOSITION IN CULTURE." Bulletin of KSAU, no. 7 (January 29, 2025): 47–53. https://doi.org/10.36718/1819-4036-2023-7-47-53.
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The purpose of research is to study the characteristics of biology (phenology, morphological parameters, reproduction), yield and biochemical composition of leaves under culture conditions. The experiment was carried out at the collection site of the laboratory of wild flora and the introduction of herbaceous plants in 2015–2022, the plants were grown from seeds obtained in 2014 from Lithuania (Tartu). Phenoritmotype is a short-vegetating spring-early summer flowering ephemeroid. It grows in the 1st–2nd decade of April. Morphometric parameters: arrow length – 113.0 ± 4.74 cm; arrow thickness – 0.9 ± 0.09 cm; leaf length – 40.7 ± 4.04 cm; sheet width – 5.5 ± 0.62 cm; inflorescence diameter – 6.1 ± 0.27 cm; flower diameter – 1.2 ± 0.04 cm. In the inflorescence of A. giganteumi there are on average 146.0 ± 17.55 pcs. flowers, fruits – 91.5 ± 22.69 pieces, umbel fruiting – 58.3 %. Real seed productivity per shoot is 260.0 ± 81.02 pcs. seeds, potential seed production – 876.0 ± 105.27 pcs., the number of seeds in the fruit – 2.7 ± 0.27 pcs.; fetal seedification – 45.3 %, umbrella productivity coefficient – 28.2 %. The leaves revealed: 144.0 mg% ascorbic acid; 6.62 mg/kg carotene; 3.32 mg/kg starch; 4.1 % sugar; 1.94 % protein; 0.35 % fat; 0.31 % nitrogen. From macronutrients, the content of calcium and sulfur was found to be 0.02 %; phosphorus – 0.05; potassium – 0.15 %; from trace elements: cobalt – 0.08 mg/kg; copper – 1.37; manganese – 2.79; zinc – 11.50 mg/kg (based on wet weight). Reproduction is by seed, the absolute weight of seeds is 4.0 g. Over the years of study (2015–2022), A. giganteum has shown itself to be a winter-hardy, resistant plant.
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Стогова, А. В., О. Е. Воронина, М. А. Зуева, and А. К. Мамонтов. "The inflce of Heracleum sosnowskyi Manden invasion on functional traits of Corydalis nobilis (L.) Pers (by the example of the MBG RAS collection of living plants)." Ecosystem Transformation 7, no. 3(26) (2024): 172–85. http://dx.doi.org/10.23859/estr-220930.
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Инвазии агрессивных чужеродных видов, таких как гигантские борщевики, в последние годы привлекают внимание многих ботаников. При этом реакция отдельных растений на присутствие инвайдеров для большинства представителей культурной и природной флоры не изучена. В работе приведены результаты исследований функциональных признаков весеннего эфемероида Corydalis nobilis при внедрении на опытные участки Heracleum sosnowskyi. Произрастание в общем локалитете с H. sosnowskyi приводит к снижению запасов органического вещества в фитомассе C. nobilis и уменьшению вклада листьев в общую массу надземной части растений. Выявлены изменения в пигментном комплексе листьев C. nobilis, проявляющиеся в увеличенном содержании суммы хлорофиллов вначале вегетационного периода. В изученных местообитаниях C. nobilis проявляет конкурентно-рудеральную жизненную стратегию. В целом H. sosnowskyi оказывает крайне неблагоприятное воздействие на C. nobilis, и жизненность особей этого вида сильно снижается. In recent years, invasions of aggressive alien species, such as a giant hogweed, have at- tracted the attention of many botanists. However, the response of individual plants to the presence of invaders has not been studied for most representatives of the cultivated and natural floras. The article presents the results of studying functional traits of the spring ephemeroid Corydalis nobilis when Hera- cleum sosnowskyi is introduced into experimental plots. Sharing a common locality with H. sosnowskyi causes a decrease in organic reserves of C. nobilis phytomass and reduced contribution of its leaves to the total mass of the aboveground parts of plants. We have revealed changes in the pigment complex of C. nobilis leaves, manifested as an increased content of the total chlorophyll in the beginning of the growing season. In the studied habitats, C. nobilis exhibits a competitive-ruderal life strategy. In general, H. sosnowskyi has an extremely adverse effect on C. nobilis and vitality ofthe latter.
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Shamsutdinov, Nariman, and Elmira Shamsutdinova. "Ecological Restoration of Degraded Pasture Ecosystems Biodiversity and Fodder Productivity in the Central Asian Desert." BIO Web of Conferences 78 (2023): 01003. http://dx.doi.org/10.1051/bioconf/20237801003.
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The increasing pressure of anthropogenic and technogenic factors on the soil and vegetation cover in the Central Asian desert is due to their degradation which dictates the need for ecological restoration of these destroyed pasture lands. For restore the lost biodiversity and fodder productivity of degraded pasture ecosystems in the Central Asian Karnabchul desert, dominant species of fodder plants were sown: Haloxylon aphyllum (15%), Halothamnus subaphyllus (20%), Artemisia diffusa (50%) and Poa bulbosa (15%) – representatives of climax communities. The climax stage is the adult state of the ecosystem, the peak of its development and it is the longest. The life forms of dominant plant species involved in the formation of climax communities are characterized by increased resistance to the abiotic and biotic stresses. This ensures the formation of poly-species multi-tiered pasture ecosystems with high and stable fodder productivity over the years in the conditions of the Central Asian desert. Fodder shrubs, semishrubs and grasses, along with high adaptive properties, are characterized by nutritional value. Haloxylon aphyllum contains 10-12% protein (in fruits up to 20%), 2.2-2.7% fat. Halothamnus subaphyllus fodder in the budding phase contains 24.7% protein, 2.7% fat. Artemisia diffusa is a very valuable fodder for sheep, goats, camels. The ephemeroid Poa bulbosa on the pastures is perfectly eaten by all kinds of animals, especially sheep. During the growing season, bluegrass fodder contains up to 24% protein, 1.6-4.1% fat.
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Tsugkiev, B. G., V. B. Tsugkieva, L. Ch Gagieva, E. V. Ramonova, and S. A. Grevtsova. "PROSPECTS FOR THE RATIONAL USE OF BEAR’S ONION WILD-HARVESTED IN NORTH OSSETIA-ALANIA." Proceedings of Gorsky State Agrarian University 61, no. 3 (2024): 83–90. http://dx.doi.org/10.54258/20701047_2024_61_3_83.
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Nowadays research aimed at finding new natural sources of biologically active substances is becoming increasingly relevant, which is consistent with government policy in the field of healthy nutrition, preserving and strengthening public health. Plants containing valuable nutritional and biologically active substances that have antimicrobial activity and have a fungicidal effect (antifungal) are widely used in many industries and medicine. In this regard, determining the age characteristics of bear’s onion, the biochemical composition of the above-ground and underground parts and antimicrobial activity is a relevant area. The location of the research was the botanical garden and the research laboratory of the Research Institute of Biotechnology of the Federal State Budgetary Educational Institution of Higher Education «Mountain State Agrarian University». It has been established that under cultural conditions, samples of bear’s onion go through all stages or periods of development 8-10 days earlier than in natural conditions. A. ursinum L. is an ephemeroid, early-flowering species and belongs to the group of short-vegetating plants. Young shoots contain carbohydrates, proteins, organic acids, beneficial fiber, as well as biologically active substances: carotenoids - 0.31 ± 0.01 mg/g, total flavonoids - 1.79 ± 0.26 mg/g, ascorbic acid - 150 ± 5.11 mg%. Biologically active substances included in the composition of the above-ground and underground parts of bear onions can have an inhibitory effect on the growth of test microbes. Moreover, the bulbs have a large zone of inhibition of the growth of test microbes: Pr. vulgaris and Staph. aureus relative to the aerial part and is 26-30 mm, respectively. The antimicrobial activity of the aerial part of Allium ursinum relative to the test microbes is: E. coli - 22 mm, Pr. vulgaris - 25 mm; Staph. aureus - 20 mm. The results obtained provide a scientific basis for the possibility of introducing and cultivating Allium ursinum , as well as using it as a food product with a rich chemical composition and antimicrobial activity.
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TUKHVATULLINA, L. A., and L. M. ABRAMOVA. "ALLIUM AFLATUNENSE «PURPLE SENSATION» AT THE SOUTH URAL BOTANICAL GARDEN-INSTITUTE." Izvestia Ufimskogo Nauchnogo Tsentra RAN, no. 2 (June 16, 2023): 67–71. http://dx.doi.org/10.31040/2222-8349-2023-0-2-67-71.
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The article presents the results of Allium aflatunense "purple sensation" introduction test. Studied: phenology, morphometry, reproducibility, reproduction and assessed the success and prospects of the species in culture. Phenorhythmotype is a short-seguing ephemeroid. In spring, it grows in the 2nd-3rd decade of April. Blooms at the end of May. The flowering phase lasts an average of 15 days. Seeds ripen in the first half of July. The period from growing to ripening of seeds is 78-84 days. A. aflatunense "purple sensation" ends vegetation at the end of June. The height of the plant is from 57 to 75 cm, the thickness of the stem is up to 0.6 cm, the length of the leaf is 43-47 cm, the width of the leaf is 2.9-4.2 cm, the diameter of the inflorescence is 9.5-12.5 cm, the diameter of the flower is up to 1.2 cm. The lowest fertility is observed in 2015: the number of flowers in the umbrella is 4488 pcs., The number of fruits - 9-23 pcs., The number of seeds in the umbrella - 14-30 pcs., fruit formation - 23.5%, productivity coefficient - 27.0%. The largest reproductive indicators are noted in 2021: the number of flowers - 104-223 pcs., The number of fruits - 73-160 pcs., The number of seeds in the umbrella - 122-333 pcs., fruit formation - 72%, productivity coefficient - 35.0%. Seed and vegetative reproduction (with bulbs). The weight of 1000 pieces of seeds is 3.0 g. According to the assessment of success and prospects, this onion is assigned to the group of promising plants (16 points). A. aflatunense "purple sensation" deserves attention as an ornamental early flowering plant.
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Ivashchenko, A. A., L. M. Grudzinskaya, A. Tursynbay, N. G. Gemejiyeva, and S. O. Isabaev. "The experience of the primary introduction of Fritillaria karelinii in the Main botanical garden of Almaty." Проблемы ботаники Южной Сибири и Монголии 22, no. 1 (2023): 166–72. http://dx.doi.org/10.14258/pbssm.2023032.
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Botanical gardens play an important role in the study and conservation of plant genetic resources where the biological features and adaptive capabilities of the biomorphological diversity of the involved plant species are studied for the subsequent prediction of the success of their introduction. The object of research was the early flowering bulbous ephemeroid of the desert territories of southern Russia, Central and Central Asia Fritillaria karelinii (Fisch. ex D. Don) Baker (syn. Rhinopetalum karelinii Fisch. ex D. Don). Due to hard harvesting of the species in the territory of Kazakhstan, exported to China where Fritillaria karelinii bulbs are used in Chinese medicine, there was a real need to study the features and methods of growing this species in culture. In carrying out the research, generally accepted methods of introducing herbaceous plants were used. An analysis of literary sources showed the availability of limited information on the cultivation of the species in Russia and neighboring countries. We studied the introduction populations of Fritillaria karelinii attracted in different years from places of natural growth in the south-east of Kazakhstan. When introduced in the Main Botanical Garden of the Institute of Botany and Phytointroduction (Almaty), the regrowth of the species begins in early March, 1-3 days after the snow cover melts. Flowering of the species in different years and in different populations begins in the first half of April, approximately 20 days after regrowth. The capsule is formed immediately after the flowering of the flower, the seeds ripen 40-50 days after flowering. The duration of the growing season of the species is 60-70 days. Attempts at seed propagation of Fritillaria karelinii undertaken by seeds from natural populations in autumn and spring did not give positive results. There is a clear trend towards a decrease in the total number and generative function of the introductory population as early as 2-3 years after its formation. The survival rate of the material depends both on the quality of the planted bulbs and the timing of their digging in natural populations.
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Gritsenko, Viktoriia, Alla Gnatiuk, Oleksandr Rak, and Mykola Gaponenko. "Coenopopulations of Isopyrum thalictroides L. in the M. M. Gryshko National Botanical Garden of the NAS of Ukraine." NaUKMA Research Papers. Biology and Ecology 5 (September 19, 2022): 44–54. http://dx.doi.org/10.18523/2617-4529.2022.5.44-54.
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The article presents the results of a study of coenopopulations of European relict species, regionally rare ornamental spring ephemeroid Isopyrum thalictroides L. in the collection “Rare plants of the flora of Ukraine” and botanical-geographical areas “Altai and Western Siberia” and “Steppes of Ukraine” of M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine (NBG). The origin of I. thalictroides in the areas of the NBG is different. On the plot “Rare plants of the flora of Ukraine” I. thalictroides is an introduced species, but in the areas “Altai and Western Siberia” and “Steppes of Ukraine” it is ergasiophygophyte. In the areas of NBG I. thalictroides shows a tendency to expand the territory, penetrates into forest (“Altai and Western Siberia”) and meadow-steppe (“Steppes of Ukraine”) cultural phytocoenoses, where it forms spontaneous coenopopulations. The conditions of habitats and sizes of coenopopulations of I. thalictroides differ in the areas of NBG: the largest is in the area “Rare plants of flora of Ukraine” (2.6 × 2.6 m), medium in “Altai and Western Siberia” (sizes of loci 1.3 × 1.3 m, 0.4 × 0.4 m and 0.1 × 0.1 m), the smallest in “Steppes of Ukraine” (0.3 × 0.3 m). Rhythms of growth and development of I. thalictroides in the conditions of Kyiv quite correspond to seasonal fluctuations of temperatures. The earliest flowering of I. thalictroides was observed in the areas of the NBG in the first half of April 2020, the latest in the second half of April in 2021–2022; flowering period in the beginning of fruiting in all areas coincided. Coenotic conditions of I. thalictroides habitats in the composition of artificially formed vegetation in the NBG and in nature differ. In the NBG areas, the species grows together with introduced, native and alien plant species and shows significant ecological and coenotic plasticity. The age spectra of all coenopopulations of I. thalictroides on the NBG areas are left-handed. The total percentage of shoots of the pregenerative period of ontogenesis (juvenile, immature, virginіle) is very high (88.98–93.62 %). The highest values are for virginile shoots (71.78–82.98 %), which may be due to the predominance of vegetative propagation over seed. The spatial distribution of shoots in coenopopulations of I. thalictroides is group, which may be due to a combination of barochoria and vegetative propagation. The number of shoots in coenopopulations of I. thalictroides in different parts of the NBG differs significantly: the largest is in the area “Rare plants of flora of Ukraine” (3562 shoots), medium in “Altai and Western Siberia” (1017 shoots), the smallest in “Steppes of Ukraine” (47 shoots). In contrast, the average density of shoots in all coenopopulations of I. thalictroides is high, uniform and is 522–546 different age shoots per 1 m2. The dependence of the number of flowers and/or fruits оn generative shoots from the height of the shoots was not detected. A study of the growth and development of I. thalictroides in NBG areas has shown that the formation of coenopopulations, both introductory and spontaneous, is an effective and promising method of conservation and protection of this species ex situ.
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Ivashchenko, A. A., E. S. Chalikova, K. T. Abidkulova, and A. D. Tolenova. "Consortial relationships between birds and plants-ephemeroids." Trudy of the Institute of Zoology RK 2, no. 1 (2023): 135–38. http://dx.doi.org/10.54944/tizrkgg87fc3.
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The use of ephemeroids in feeding and as nest material by birds is assessed in this report. The consumption of 18 species of plants by Alectoris chukar and Phasianus colchicus both in nature (Trans Ili Alatau) as well as in culture (collection of the Botanical Garden of Almaty) was noted. In the Western Tien Shan, Passer hispaniolensis and Emberiza bruniceps utilized seven species of ephemeroids for nest building, most often Gymnospermium alberti, Ranunculus regelianus and Poa bulbosa. In the nests of six other passerine species, individual parts of such plants are less common and are used only as an admixture.
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Lazkov, Georgy, Alexander Sennikov, and Alexander Naumenko. "New records in vascular plants alien to Kyrgyzstan." Biodiversity Data Journal 2 (January 21, 2014): e1018. https://doi.org/10.3897/BDJ.2.e1018.
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A series of brief notes on distribution of vascular plants alien to Kyrgyzstan is presented. A further expansion of <i>Anthemis ruthenica</i> (Asteraceae), <i>Crambe orientalis</i> (Brassicaceae) and <i>Salvia aethiopis</i> (Lamiaceae) in northern and northwestern Kyrgyzstan is recorded. The first record of <i>Chenopodium vulvaria</i> (Amaranthaceae) from the northern side of Kyrgyz Range is confirmed, and the species was found for the second time in Alay Range. The ephemerous occurrence of <i>Hirschfeldia incana</i> (Brassicaceae) in Central Asia is recorded for the first time from Fergana Range. <i>Tragus racemosus</i> (Poaceae) is first recorded from the Chüy Depression as an ephemerous alien. <i>Arrhenatherum elatius</i>, escaped from cultivation and locally established, is new to the country. The second record of established occurrence of <i>Centaurea solstitialis</i> (Asteraceae) and an ephemerous occurrence of <i>Glaucium corniculatum</i> (Papaveraceae) are presented. Complete information is collected about the occurrence of every mentioned species in Kyrgyzstan.
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Eroshkin, G. I., N. I. Glebova, M. A. Fursenko, and A. A. Trubitsina. "Some Aspects of Constructing Long Ephemerides of the Sun, Major Planets and the Moon: Ephemeris AE95." International Astronomical Union Colloquium 165 (1997): 245–50. http://dx.doi.org/10.1017/s0252921100046625.
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The construction of long-term numerical ephemerides of the Sun, major planets and the Moon is based essentially on the high-precision numerical solution of the problem of the motion of these bodies and polynomial representation of the data. The basis of each ephemeris is a mathematical model describing all the main features of the motions of the Sun, major planets, and Moon. Such mathematical model was first formulated for the ephemerides DE/LE and was widely applied with some variations for several national ephemeris construction. The model of the AE95 ephemeris is based on the DE200/LE200 ephemeris mathematical model. Being an ephemeris of a specific character, the AE95 ephemeris is a basis for a special edition “Supplement to the Astronomical Yearbook for 1996–2000”, issued by the Institute of the Theoretical Astronomy (ITA) (Glebova et al., 1995). This ephemeris covering the years 1960–2010 is not a long ephemeris in itself but the main principles of its construction allow one to elaborate the long-term ephemeris on an IBM PC-compatible computer. A high-precision long-term numerical integration of the motion of major bodies of the Solar System demands a choice of convenient variables and a high-precision method of the numerical integration, taking into consideration the specific features of both the problem to be solved and the computer to be utilized.
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Pozdnyakova, Y., A. Sailau, D. Solyanov, L. Aitisheva, Y. Tatina, and V. Britko. "Diversity of early flowering plants of the Ulytau mountains (Central Kazakhstan)." Biosystems Diversity 31, no. 3 (2023): 261–68. http://dx.doi.org/10.15421/012329.
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Early flowering plants (ephemers and ephemeroids) are an important component of the biosystem of steppes and deserts. These species form perennial pasture communities, for early grazing. The present work was conducted to evaluate the floristic checklist and ecological uniqueness of early flowering plants of Central Kazakhstan, in the forest-steppe regions of Em-Bulak region and Edige mountains, during 2021 and 2022. A total of 26 species of ephemers and ephemeroids were recorded, which belong to 16 families: Liliaceae – 3 species, Asteraceae – 3 species, Ranunculaceae – 3 species, Rosaceae – 3 species, Brassicaceae – 2 species, Boraginaceae – 2 species, the other families are represented by one species. According to ecomorphological characteristics: 8 species (31%) belong to the xerophyte group, 6 (23%) to the xeromesophyte group, 7 (27%) to the mesoxerophyte group and 5 (19%) to the mesophyte group. Also, as a result of our research we found two species of plants which are included in the Red Book of the Republic of Kazakhstan – Pulsatilla patens (L.) Mill. and Tulipa patens Agardh. ex Schult. f. The data obtained can be used for environmental monitoring and issues of rational nature management of wild plants of Central Kazakhstan.
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Pilková, Ivana. "Species Structure of Plants in the Báb Forest Clearcuts." Acta Regionalia et Environmentalica 11, no. 2 (2014): 52–58. http://dx.doi.org/10.1515/aree-2014-0009.
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Abstract In the paper we have summarized the results of a research which was realized in the Báb forest (Veľký Báb, Nitra upland). The target of the research is the evaluation of species composition in the clearcuts in 2012. In the Báb forest, during spring records there were 80 and during summer records 102 taxa of taxons recorded. The woody plants of spring and summer reports were mainly represented by typical forest species. Moreover, these are woody plants of forest open parts and there are also two invasive woody Ailanthus altissima, Robinia pseudoacacia plants documented. During the summer reports, three new woody plants Clematis vitalba, Lonicera caprifolium, Ulmus minor appeared in the herb layer. Herbs are represented during the spring reports by typical spring ephemeroids, geophytes and forest herbs presenting the spring synusia. During the summer reports, ephemeroids are absent and there were new species, mainly Alliaria petiolata, Convallaria majalis, Lithospermum purpurocaeruleum, Melica nutans of forest herbs reported. In the clearcut areas also clearcut, synanthropic, mainly Cirsium vulgare, Lamium purpureum, Sambucus ebulus, Serratula tinctoria, Torilis japonica and invasive species Aster lanceolatus, A. novi-belgii agg., Erigeron annuus ssp. annuus, Impatiens parviflora occurred. Generally, we can state that the diversity of clearcut plant taxa is high. Taxa are represented by forest woody plants, woody plants of clearcuts, forest open parts and forest edges. Within clearcut herbs, there are typical forest species of oak-hornbeam forests represented, species of clearcuts and human-influenced posts and there are also invasive taxa found
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Standish, E. M. "Linking the Dynamical Reference frame to the ICRF." Highlights of Astronomy 11, no. 1 (1998): 310–12. http://dx.doi.org/10.1017/s1539299600020839.
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AbstractThe latest JPL planetary and lunar ephemerides, DE405, are referenced to the International Celestial Reference Frame (ICRF) with an accuracy that approaches 1 mas for the four innermost planets, the sun, and the moon. This has been accomplished mainly by 18 VLBI observations of the Magellan Spacecraft in orbit around Venus. The ephemeris of Jupiter, however, is not well-determined since the various observations are not consistent within each other. The outer four planets continue to rely almost entirely upon optical observations; their ephemeris uncertainties lie in the 100-200 mas range.
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Capistrano, Abraão J. S., Joice A. M. Penagos, and Manuel S. Alárcon. "Heuristic Approach on Anomalous Apsidal Precession of Planets." International Journal of Modern Physics: Conference Series 45 (January 2017): 1760074. http://dx.doi.org/10.1142/s2010194517600746.
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In this paper we study the anomalous movement of planet precession as compared with different observational data from Ephemerides of the Planets and the Moon (EPM2008 and EPM2011) and the Planetary and Lunar Ephemeris (INPOP10a). Using a heuristic methodology we obtain a very close results to observations.
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Newhall, X. X., J. G. Williams, and E. M. Standish. "Planetary and lunar ephemerides, lunar laser ranging, and lunar physical librations." Symposium - International Astronomical Union 172 (1996): 37–44. http://dx.doi.org/10.1017/s0074180900127093.
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The Jet Propulsion Laboratory (JPL) has recently produced a new integrated planetary and lunar ephemeris DE403/LE403. This ephemeris spans the interval JED 624912.5 (December 2, −3002, Julian) – JED 2817104.5 (November 14, 3000, Gregorian) and is an improvement on DE102 (Newhall et al., 1983) and DE200 (Standish, 1990). This integration carries the Cartesian states of the Sun, Moon, and planets, along with the three Euler angles describing the lunar physical librations.
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Thygesen, Erica, Joseph E. Rodriguez, Zoë L. de Beurs, et al. "The K2 and TESS Synergy. III. Search and Rescue of the Lost Ephemeris for K2's First Planet." Astronomical Journal 168, no. 4 (2024): 161. http://dx.doi.org/10.3847/1538-3881/ad60bf.
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Abstract K2-2 b/HIP 116454 b, the first exoplanet discovery by K2 during its Two-Wheeled Concept Engineering Test, is a sub-Neptune (2.5 ± 0.1 R ⊕, 9.7 ± 1.2 M ⊕) orbiting a relatively bright (K S = 8.03) K-dwarf star on a 9.1 day period. Unfortunately, due to a spurious follow-up transit detection and ephemeris degradation, the transit ephemeris for this planet was lost. In this work, we recover and refine the transit ephemeris for K2-2 b, showing a ∼40σ discrepancy from the discovery results. To accurately measure the transit ephemeris and update the parameters of the system, we jointly fit space-based photometric observations from NASA’s K2, Transiting Exoplanet Survey Satellite, and Spitzer missions with new photometric observations from the ground, as well as radial velocities from HARPS-N that are corrected for stellar activity using a new modeling technique. Ephemerides becoming lost or significantly degraded, as is the case for most transiting planets, highlights the importance of systematically updating transit ephemerides with upcoming large efforts expected to characterize hundreds of exoplanet atmospheres. K2-2 b sits at the high-mass peak of the known radius valley for sub-Neptunes, and is now well-suited for transmission spectroscopy with current and future facilities. Our updated transit ephemeris will ensure no more than a 13 minute uncertainty through 2030.
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Gassanova, Gulnara, Akzhunis Imanbayeva, Samal Syrlybekkyzy, and Guldana Shakhaeva. "Bioecological features of rare and endangered plants during introduction in the conditions of the Mangyshlak Experimental Botanical Garden." Bulletin of the Karaganda University. “Biology, medicine, geography Series” 102, no. 2 (2021): 15–22. http://dx.doi.org/10.31489/2021bmg2/15-22.
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The paper presents the results of research on the bioecological features of 8 species of herbaceous plants (Ixiliorion tataricum, Convallaria majalis, Ornithogalum fischeranum, Convolvulus persicus, Iris aphylla, Tulipa sogdiana, Tulipa schrenkii, Tulipa biflora), included in the Red Book of the Republic of Kazakhstan (6 species), the Russian Federation (1 species) and the Mangistau region (1 species) when introduced under the conditions of the Mangyshlak Experimental Botanical Garden. Bioecological features of plants, life forms, their biometric indicators, results of phenological observations in conditions ex situ of Mangyshlak experimental botanical garden are given. Of the 8 studied species, 6 are ephemeroids, 2 species are long-growing. All plants go through all phases of vegetation, successfully reproduce by seed and vegetation ways. Morphometric indices of research objects exceed similar data in places of natural growth, which indicates stability in culture conditions. Following the results of the introduction into the culture, a seed fund of rare and endangered plants was laid; the use of species in ornamental gardening of the Mangistau region was proposed.
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Guliyeva, Ye. "Ecological and Geobotanical State of the Vegetation Cover of Apsheron." Bulletin of Science and Practice 7, no. 8 (2021): 22–28. http://dx.doi.org/10.33619/2414-2948/69/03.
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The article deals with the research and processing of herbarium materials. From the research results it follows that the total number of species of the vegetation cover of Apsheron is about 36 kinds. Most types of vegetation are annual and ephemeral plants. The shrubs, semi shrubs, dwarf shrubs and semi-dwarf-shrubs are in lees numbers, but they play a great role in the formation of plant communities. Among the leading species includes mesophytes, ephemerals and ephemeroids in the herbage. An important role is also played by edificators, which are formed from subshrubs, semi-shrub types (fragrant wormwood, karagan, mountain hodgepodge, petrosimonia, salsify).
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Standish, E. M. "Celestial Reference Frames: Definitions and Accuracies." Symposium - International Astronomical Union 129 (1988): 309–15. http://dx.doi.org/10.1017/s0074180900134813.
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The determination of a specific catalogue or ephemeris reference frame is a highly over-determined problem, depending on the particular selection of which coordinates, which objects and at what time(s) the determination is made. The consistency which various determinations exhibit is dependent upon the accuracy of the catalogue or ephemeris itself. This paper discusses the accuracies of the three most prominent celestial reference frames: stellar catalogues, the lunar and planetary ephemerides and the radio source catalogues.The FK4 stellar catalogue contains known systematic errors amounting to a few tenths of an arcsecond; the FK5 will yield nearly an order of magnitude improvement; HIPPARCOS and Space Telescope expectby the mid 1990's optical interferometry should approachwithin a couple of years, tens of micro(!)arcseconds after a couple of decades. Present-day lunar and planetary ephemerides have accuracies at the level offor the moon and inner four planets;for the outer planets. Further observational data will permit continued improvement. Radio source catalogues now show internal consistency of
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Li, G. Y., H. B. Zhao, Y. Xia, F. Zeng, and Y. J. Luo. "PMOE planetary/lunar ephemeris framework." Proceedings of the International Astronomical Union 3, S248 (2007): 560–62. http://dx.doi.org/10.1017/s1743921308020140.
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AbstractThe PMOE planetary/lunar ephemeris framework was established in 2003, and has been improved in recent years. In the framework of the post-Newtonian effects, the figure perturbation effects arising from the a finite size of the Sun, Moon and the Earth, and the effect of the Earth tide were taken into account. The accuracy of using the PMOE ephemeris to predict the positions of the planets in the solar system are the same as that of JPL DE 405. Based on this framework, the orbit optimization for the LISA, ASTROD and ASTROD I missions, and the computation of celestial phenomena and lunar phases in the Xia Shang and Zhou period of ancient China have been completed.
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Ou, Zhuoliang, Jiahao Zhong, Yongqiang Hao, et al. "Near-Real-Time Global Thermospheric Density Variations Unveiled by Starlink Ephemeris." Remote Sensing 17, no. 9 (2025): 1549. https://doi.org/10.3390/rs17091549.
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Previous efforts to retrieve thermospheric density using satellite payloads have been limited to a small number of satellites equipped with GNSS (Global Navigation Satellite System) receivers and accelerometers. These satellites are confined to a few orbital planes, and analysis can only be conducted after the data are processed and updated, resulting in sparse and delayed thermospheric density datasets. In recent years, the Starlink constellation, developed and deployed by SpaceX, has emerged as the world’s largest low Earth orbit (LEO) satellite constellation, with over 6000 satellites in operations as of October 2024. Through the strategic use of multiple orbital shells featuring various inclinations and altitudes, Starlink ensures continuous near-global coverage. Due to extensive coverage and frequent maneuvers, SpaceX has publicly released predicted ephemeris data for all Starlink satellites since May 2021, with updates approximately every 8 h. With the ephemeris data of Starlink satellites, we first apply a maneuver detection algorithm based on mean orbital elements to analyze their maneuvering behavior. The results indicate that Starlink satellites exhibit more frequent maneuvers during thermospheric disturbances. Then, we calculate the mechanical energy loss caused by non-conservative forces (primarily atmospheric drag) through precise dynamical models. The results demonstrate that, despite certain limitations in Starlink ephemeris data, the calculated mechanical energy loss still effectively captures thermospheric density variations during both quiet and disturbed geomagnetic periods. This finding is supported by comparisons with Swarm-B data, revealing that SpaceX incorporates the latest space environment conditions into its orbit extrapolation models during each ephemeris update. With a maximum lag of only 8 h, this approach enables near-real-time monitoring of thermospheric density variations using Starlink ephemeris.
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Sadyrova, G. A., G. Sadyr, A. K. Tanybayeva, et al. "FEATURES OF THE DISTRIBUTION OF ALTITUDINAL-BELT VEGETATION OF THE UZYNKARA (KETPEN) RIDGE." Experimental Biology 102, no. 1 (2025): 46–60. https://doi.org/10.26577/bb202510215.
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The article shows the results of the Uzynkara (Ketpen) range vegetation studies during route and semi-stationary studies. The article presents the analysis of the Uzynkara ridge vegetation on specific profiles and summarizes all available data on the patterns of altitudinal zonality of vegetation. The flora of the territory we studied is comparatively rich and includes 1890 species of higher vascular plants belonging to 120 families and 596 genera. About 67.8% of the entire flora are perennial herbaceous hemicryptophytes. A very large proportion (more than 21%) are summer-green biennials (annuals and biennials) - therophytes, i.e. plants with an accelerated development cycle. This feature - the abundance of annuals and biennials and the presence of a large number of ephemerals and ephemeroids - is characteristic of the mountain flora of the entire Middle Asia. In this territory, we have identified the following altitudinal zonality zones, each with its own specific type ...
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Mallonn, M., C. von Essen, E. Herrero, et al. "Ephemeris refinement of 21 hot Jupiter exoplanets with high timing uncertainties." Astronomy & Astrophysics 622 (January 31, 2019): A81. http://dx.doi.org/10.1051/0004-6361/201834194.
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Transit events of extrasolar planets offer a wealth of information for planetary characterization. However, for many known targets, the uncertainty of their predicted transit windows prohibits an accurate scheduling of follow-up observations. In this work, we refine the ephemerides of 21 hot Jupiter exoplanets with the largest timing uncertainties. We collected 120 professional and amateur transit light curves of the targets of interest, observed with a range of telescopes of 0.3 m–2.2 m, and analyzed them along with the timing information of the planets discovery papers. In the case of WASP-117b, we measured a timing deviation compared to the known ephemeris of about 3.5 h, and for HAT-P-29b and HAT-P-31b the deviation amounted to about 2 h and more. For all targets, the new ephemeris predicts transit timings with uncertainties of less than 6 min in the year 2018 and less than 13 min until 2025. Thus, our results allow for an accurate scheduling of follow-up observations in the next decade.
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Newhall, X. X., R. A. Preston, and P. B. Esposito. "Relating the JPL VLBI Reference Frame and the Planetary Ephemerides." Symposium - International Astronomical Union 109 (1986): 789–94. http://dx.doi.org/10.1017/s0074180900077330.
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A series of VLBI observations of planet-orbiting spacecraft and angularly nearby quasars has provided an estimate of the relative orientation of the JPL VLBI reference frame and the ephemeris frame of the inner planets. We find the two frames to be coincident in both right ascension and declination to less than 20 milliarcseconds (mas).
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Tsoucalas, Gregory, Theodoros Papaioannou, George Panayiotakopoulos, Zenia Saridaki, Dimitrios A. Vrachatis, and Marianna Karamanou. "Colchicum Genus in the Writings of Ancient Greek and Byzantine Physicians." Current Pharmaceutical Design 24, no. 6 (2018): 648–53. http://dx.doi.org/10.2174/1381612824666180115111546.
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The plants of the Colchicum family were known during the archaic period in Greece for their deleterious properties. Later on, they were used for the treatment of podagra. The treatment was introduced by the ancient Greek physicians and passed on to the Byzantine and Arabian physicians to endure until nowadays. The first plant was most probably named "Medea" from the notorious Colchican witch. As the most common member of the family blossoms in autumn, the plant was named Colchicum autumnale. Various nominations were also used, such as Ephemeron, Hermodactyl, Anima articulorum and Surugen. Our article discusses them, while at the same time presents the most notable authorities who have used Colchicum plants in herbal medicine and toxicology.
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Akim, E. L., V. A. Brumberg, M. D. Kislik, et al. "A relativistic theory of motion of the inner planets." Symposium - International Astronomical Union 114 (1986): 63–68. http://dx.doi.org/10.1017/s0074180900147990.
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The theory of the motion of Mercury, Venus, Earth and Mars is constructed by numerical integration. The theory takes into account relativistic corrections in the frame of Schwarzschild's space-time metrics. The constants of the theory are determined by discussion of the Soviet and American radar observations of Mercury, Venus and Mars, position astrometric observations of these planets (and the Sun) and observations of the Soviet artificial satellites of Venus. Apart from the planet elements the value AU and corrections to the adopted radii of Mercury, Venus and Mars are determined. Statistics of residuals is given and accuracy of the theory is estimated. The theory presented is an ephemeris base for deep space experiments.
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Boyle, Andrew, Jessie L. Christiansen, Shreyas Vissapragada, and Kevin K. Hardegree-Ullman. "An Updated Ephemeris for K2-138 d." Research Notes of the AAS 6, no. 4 (2022): 71. http://dx.doi.org/10.3847/2515-5172/ac64fe.
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Abstract K2-138 d (EPIC 245950175 d) is one of five planets in a chain of 3:2 mean motion resonances discovered by Christiansen et al. in K2 Campaign 12. An additional planet, confirmed with the Spitzer Space Telescope by Hardegree-Ullman et al., is not in the resonant chain. The near first-order resonances, coupled with the planets being locked in a set of three-body Laplace resonances, make this system a unique target to study for transit timing variations (TTVs). As the predicted transit timing amplitude (∼7 minutes) was below the typical transit timing uncertainty (∼10 minutes) of the K2 data, Christiansen et al. were unable to detect TTVs for K2-138 d in the K2 time series. Here, we describe new observations that allow us to refine the ephemeris for K2-138 d and perform a brief search for TTVs. Our efforts result in a refined orbital period that is 19 times more precise than previously available measurements, but our data are insufficient to confirm a TTV signal for K2-138 d.
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Standish, E. M., and X. X. Newhall. "New accuracy levels for solar system ephemerides." Symposium - International Astronomical Union 172 (1996): 29–36. http://dx.doi.org/10.1017/s0074180900127081.
Full textAbstract:
DE403/LE403 is the latest JPL Planetary and Lunar Ephemeris. It represents a number of changes and improvements to previous JPL ephemerides: the reference frame is now that of the IERS, newer and more accurate observations are used in the adjustment process, some of the data reduction techniques have been refined, and improved dynamical modeling has been incorporated into the equations of motion. As a result, the internal accuracy of the inner four planets has been improved. Further, various measurements accurately tie Jupiter onto the IERS Reference Frame. In the future, use of CCD measurements and the Hipparcos Catalogue should improve the ephemerides of the outermost four planets.DE403/LE403 has been integrated over 6000 years, from 3000 BC to 3000 AD. A more condensed representation has been made from this, named DE404/LE404. It replaces DE102 as the new JPL “Long Ephemeris”.
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Belikov, M. L., V. N. Boyko, N. I. Glebova, et al. "The Main Stages of the Construction of AE89—The Numerical Ephemeris of the Planets and the Moon." Symposium - International Astronomical Union 141 (1990): 183–85. http://dx.doi.org/10.1017/s0074180900086733.
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The realization of theoretical and applied researches in the domain of ephemeris astronomy, connected with analysis of precision of existing planetary and lunar theories, the construction of an inertial coordinate system and investigation of physical properties of space-time, necessitated the elaboration in ITA of the numerical theory of the motion of heavenly bodies suitable for calculation of high-precision ephemerides at large time-spans, and fit also for the maintenance of space experiments.
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Holman, Matthew J., Arya Akmal, Davide Farnocchia, et al. "ASSIST: An Ephemeris-quality Test-particle Integrator." Planetary Science Journal 4, no. 4 (2023): 69. http://dx.doi.org/10.3847/psj/acc9a9.
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Abstract We introduce ASSIST, a software package for ephemeris-quality integrations of test particles. ASSIST is an extension of the REBOUND framework and makes use of its IAS15 integrator to integrate test-particle trajectories in the field of the Sun, Moon, planets, and 16 massive asteroids, with the positions of the masses coming from the Jet Propulsion Laboratory’s DE441 ephemeris and its associated asteroid perturber file. The package incorporates the most significant gravitational harmonics and general-relativistic corrections. ASSIST also accounts for position- and velocity-dependent nongravitational effects. The first-order variational equations are included for all terms to support orbit fitting and covariance mapping. This new framework is meant to provide an open-source package written in a modern language to enable high-precision orbital analysis and science by the small-body community. ASSIST is open source, freely distributed under the GNU General Public license v3.0.
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Tuhvatullina, Lenvera, Oleg Zhigunov, and Zinnur Shigapov. "ECONOMIC SIGNIFICANCE AND USE OF ALLIUM GENUS REPRESENTATIVES." Bulletin of KSAU, no. 10 (November 26, 2024): 49–61. https://doi.org/10.36718/1819-4036-2024-10-49-62.
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The aim of the study is to select 84 most resistant onion taxa from 101 introduced plants based on many years of practical experience with onion species and generalization of literature data. These taxa can be recommended for wider use in the Bashkir Cis-Urals Region as a garden crop, as well as for use in phytodesign as ornamental plants. Of the 84 onion taxa, 39 are bulbous and 45 are rhizome-bulbous plants. According to the seasonal development rhythm (duration of vegetation), the studied onions belong to 3 phenorhythmotypes: 1 – spring-summer-autumn green (39), their vegetation lasts from April to October, until the onset of severe frosts; 2 – spring-summer green (25), their vegetation ends in summer; 3 – spring green (20) – short-vegetating ephemeroids. By peduncle height, 25 onion taxa belong to low-growing, 35 taxa – to medium-growing, 24 taxa – to tall plants. By inflorescence diameter, small-flowered onions (up to 4 cm) make up 33.3 %; medium-flowered (4–6 cm) – 41.7; large-flowered (more than 6 cm) – 25.0 %. In the onion collection, spring-flowering onions make up 6 %; early summer – 42; mid-summer – 46; late summer – 7 %. In terms of flowering duration, short-flowering (8–15 days) make up 26.2 % (22 taxa); medium-long-flowering (16–25 days) – 51.2 (43 taxa); long-flowering (26–50 days) – 22.6 % (19 taxa). Of the recommended onions, 7 taxa are purely edible, 33 are ornamental and edible (universal), 44 are ornamental plants.
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Cáceres, Claudio, Valentin D. Ivanov, Dante ~Minniti, et al. "High cadence near-infrared transit timing observations of extrasolar planets." Proceedings of the International Astronomical Union 5, H15 (2009): 688–89. http://dx.doi.org/10.1017/s1743921310010963.
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AbstractCurrently the only technique sensitive to Earth mass planets around nearby stars (that are too close for microlensing) is the monitoring of the transit time variations of the transiting extrasolar planets. We search for additional planets in the systems of the hot-Neptune GJ-436 b, and the hot-Jupiter XO-1 b, using high cadence observations in the J and KS bands, with the SofI and ISAAC instruments from La Silla Paranal Observatory. New high-precision transit timing measurements were used to derive new ephemeris. No statistically significant timing deviations were detected. We demonstrate that the high cadence ground based near-infrared observations are successful in constraining the mean transit time to 30 sec, and are a viable alternative to space missions.
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Vaňko, M., S. Raetz, M. Mugrauer, et al. "Transit observation at the observatory in Großschwabhausen: XO-1b and TrES-1." Proceedings of the International Astronomical Union 4, S253 (2008): 440–42. http://dx.doi.org/10.1017/s1743921308026872.
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AbstractWe report on observations of transit events of the transiting planets XO-1b and TrES-1 with the AIU Jena telescope in Großschwabhausen. Based on our (IR) photometry (in March 2007) and available transit timings (SuperWASP, XO and TLC-project-data) we improved the orbital period of XO-1b (P = 3.941497 ± 0.000006) and TrES-1 (P = 3.0300737 ± 0.000006), respectively. The new ephemeris for the both systems are presented.