bluuebunny/crossref_metadata_2025 huggingface dataset:
БИОЛОГИЯ ГНЕЗДОВАНИЯ КАНАДСКОГО ЖУРАВЛЯ ANTIGONE CANADENSIS НА ЗАПАДНОЙ ЧУКОТКЕ: АНАЛИЗ ВОЗДЕЙСТВИЯ КЛИМАТИЧЕСКИХ ФАКТОРОВ
Authors: Д.А. БАРЫКИНА , Д.В. СОЛОВЬЁВА
Published: November 2024

Изменение климата нагляднее всего заметно в арктических широтах. Быстрая экспансия на запад и рост численности канадского журавля на гнездовье в Евразии требуют анализа воздействия этого вида на экосистемы Арктики. Использовались натурные данные о 223 гнездах канадского журавля в Чаунской низменности, Западная Чукотка. Исследовались сроки начала гнездования, размер кладки, размер яиц, плотность и успех гнездования, выявлены погодно-климатические параметры, оказывающие воздействие на репродуктивный потенциал вида. Наиболее значимыми метеопараметрами, определяющими повышение плотности гнездования, размера кладки и яиц, раннее начало гнездования и более высокий успех гнездования, оказались дата устойчивого перехода среднесуточных температур через 0 °C, условная характеристика мая (холодный или теплый по данным о сумме положительных температур) и сумма среднесуточных температур второй половины мая. Максимально репродуктивный потенциал вида реализуется в условиях теплой и ранней весны.

The climate change is well pronounced in high latitudes. The quick westward expansion of the Sandhill Crane breeding range in Eurasia requires an analysis of the species impact on the Arctic ecosystems. We employ the data about 223 Sandhill Crane nests in the Chaun-Delta, West Chukotka. Weinvestigated date of clutch onset, clutch sizes, egg sizes, nesting density and nesting success. We tested above parameters vs climatic characteristics of the site in order the learn their effect on the reproductive potential of the species. The most important climatic characteristics that determine the increase in nesting density, clutch and egg sizes, earlier clutch onset and higher nesting success included the First frost free day, the integrated characteristic of May (cold or warm according to the sum of positive temperatures) and the sum of average daily temperatures in the second half of May. The maximum reproductive potential Sandhill crane is realized in conditions of warm and early spring.
ДЕКАЛЬЦИНАЦИЯ РАКОВИНЫ МОЛЛЮСКА ТРЕМАТОДАМИ: ПОБОЧНЫЙ ЭФФЕКТ ИЛИ МАНИПУЛИРОВАНИЕ ФЕНОТИПОМ ХОЗЯИНА?
Authors: А.Е. ЖОХОВ , М.Н. ПУГАЧЁВА , В.Н. МИХЕЕВ
Published: November 2024

Исследовали изменения массы тела живых двустворчатых моллюсков Pisidium amnicumи массу их раковины, сравнивая моллюсков, зараженных трематодами Allocreadium crassum, Phyllodistomum foliumи Bunodera spp., с незараженными особями. Средняя масса моллюска и раковины у особей, зараженных A. crassum, была достоверно меньше, чем у незараженных. Показатели моллюсков, зараженных P. folium и Bunodera spp., не отличались от контроля, за исключением массы живых моллюсков, зараженных Bunodera spp. Моллюски, зараженные зрелыми метацеркариями A. crassum, имели легкую и хрупкую раковину, масса которой (25,6 мг) была в среднем в 3 раза меньше, чем у незараженных моллюсков (74,1 мг). У моллюсков с незрелыми метацеркариями средняя масса раковины не отличалась от таковой у незараженных моллюсков. Полученные результаты рассматриваются с точки зрения гипотезы об адаптивном манипулировании фенотипом хозяина.

Changes in the total weight of live clams Pisidium amnicum and weight of their shells were studied by comparing uninfected clams with clams infected with trematods Allocreadium crassum, Phyllodistomum folium and Bunodera spp. Mean total and shell weights of clams infected with A. crassum were significantly lower than those of uninfected clams. Characteristics of clams infected with P. folium and Bunodera spp. were not different from the control with the exception of the weight of clams infected with Bunodera spp. Clams infected with mature metacercariae of A. crassum possessed light and fragile shells that weighed on average 3 times less than those of uninfected clams (25.6 vs 74.1 g.). The weight of shells of clams with immature metacercariae was not different from that of uninfected clams. The obtained results were analyzed from the viewpoint of the hypothesis of adaptive manipulation of the host phenotype.
РОЛЬ ГРИБОВ И БАКТЕРИЙ В МИНЕРАЛИЗАЦИИ СОЕДИНЕНИЙ АЗОТА В ПОЧВЕ ЮЖНО-ТАЕЖНОГО БЕРЕЗНЯКА ЕВРОПЕЙСКОЙ РОССИИ
Authors: С.М. РАЗГУЛИН , Л.В. ВОРОНИН
Published: November 2024

Определяли вклад грибов и бактерий в процесс нетто-аммонификации в дерново-подзолистой почве кислично-черничного березняка Ярославской области с использованием ингибиторного анализа. В микобиоте сапротрофных грибов преобладали представители родов Penicillium Link (70-99 %) и Trichoderma Pers. (6-20 %). Сезонные изменения общей численности грибов и содержания Сорг и Nорг в почве коррелировали только в элювиальном горизонте, r= -0,8 и r = -0,7. В горизонтах А0 и А общая численность грибов отрицательно коррелировала с накоплением азота, r = -0,85 и r = -0,89. Установлено, что для подстилки характерно равнозначное участие грибов и бактерий в этом процессе. В гумусовом горизонте отмечено небольшое превышение участия грибов над бактериями. В элювиальной части профиля вклад бактерий незначительно выше вклада грибов. Максимальная температура воздуха способна регулировать сезонную динамику численности сапротрофных грибов в почве.

The contribution of fungi and bacteria to the process of net ammonification in the soddy-podzolic soil of the sour-bilberry birch forest of the Yaroslavl region was determined using inhibitory analysis. Representatives of the genera Penicillium Link (70-99 %) and Trichoderma Pers. (6-20 %) dominated in the mycobiota of saprotrophic fungi. Seasonal changes in the total number of fungi and the content of Corg and Norg in the soil correlated only in the eluvial horizon, with r = -0.8 and -0.7. In horizons A0 and A2, total fungal abundance was negatively correlated with nitrogen accumulation, with r = -0.85 - -0.89. It has been established that the litter is characterized by an equal participation of fungi and bacteria in this process. In the humus horizon, a slight excess of the participation of fungi over bacteria was noted. In the eluvial part of the profile, the contribution of bacteria is slightly higher than the contribution of fungi. The maximum air temperature is able to regulate the seasonal dynamics of the number of saprotrophic fungi in the soil.
БИОКЛИМАТИЧЕСКИЕ ФАКТОРЫ И ЭКОЛОГО-ГЕОГРАФИЧЕСКИЕ ЗАКОНОМЕРНОСТИ РАСПРОСТРАНЕНИЯ РЕДКОГО ВИДА HEDYSARUM GRANDIFLORUM PALL
Authors: Л.М. АБРАМОВА , С.Н. ЖИГУНОВА , В.Н. ИЛЬИНА , М.В. ЛАВРЕНТЬЕВ , Н.А. СУПРУН
Published: November 2024

Представлены результаты изучения ареала и диапазона экологических факторов редкого вида Hedysarum grandiflorum Pall. на территории европейской части России. В качестве исходного материала использовано 387 точек нахождения вида из 10 регионов РФ. Для расчета климатических показателей взяты растровые данные BIOCLIM по 19 биоклиматическим переменным, система глобального цифрового картографирования почв SoilGrids и цифровая модель рельефа SRTM1arc_V3. Показатели среднегодовой температуры, температуры летних и зимних месяцев местообитаний H. grandiflorum уменьшаются в северо-восточном направлении от Ростовской области до Республики Башкортостан, а годовое количество осадков меньше в южных регионах степной зоны и больше в регионах лесостепной зоны, при этом наблюдается большее количество летних осадков, чем зимних. Местонахождения вида, находящиеся на границе ареала, в большинстве случаев имеют крайние (максимальные или минимальные) значения климатических факторов. На северо-востоке ареала H. grandiflorum продвижение вида ограничивают низкие температуры летних и зимних месяцев, с юга - высокие летние температуры и малое количество осадков в летний период. Охрана вида осуществляется в 19 заповедниках, заказниках, природных и национальных парках, а также более чем в 80 памятниках природы, и в целом достаточна, однако особого внимания требуют краевые малочисленные местонахождения вида.

Distribution and range of ecological factors of the rare species Hedysarum grandiflorum Pall. in the European part of Russia are discussed. Data on 387 species localities from 10 regions of the Russian Federation were used. Climate and soil indicators were calculated using raster data of 19 bioclimatic variables of BIOCLIM, the SoilGrids global digital soil mapping system and the SRTM 1arc_V3 digital elevation model. Indicators of the average annual temperature, temperature of the summer and winter months of H. grandiflorum habitats decrease in the northeast direction from the Rostov region to the Republic of Bashkortostan, and the annual precipitation is less in the southern regions of the steppe zone and more in the regions of the forest-steppe zone, while there is a higher amount of summer precipitation than winter. Boundary localities of the species range in most cases have extreme (maximum or minimum) values of climatic factors. In the northeast of the range of H. grandiflorum, the progress of the species is limited by low temperatures in the summer and winter months, from the south, the progress of the species is limited by high summer temperatures and low precipitation in the summer. Species protection is carried out in 19 reserves, wildlife areas, natural and national parks, as well as in more than 80 natural monuments, and is generally sufficient, but regional small localities of the species require special attention.
ИЗМЕНЧИВОСТЬ РАЗМЕРОВ И ФОРМЫ КОСТЕЙ РЕЧНОГО ОКУНЯ PERCA FLUVIATILIS LINNAEUS, 1758 В ВОДОЕМАХ-ХРАНИЛИЩАХ ЖИДКИХ РАДИОАКТИВНЫХ ОТХОДОВ
Authors: В.Ю. БАРАНОВ
Published: November 2024

Методами геометрической морфометрии изучена изменчивость размеров и формы трех костей речного окуня из смежных водоемов верховьев р. Теча (Южный Урал) - хранилищ жидких радиоактивных отходов Теченского каскада, подверженных более 50 лет техногенному загрязнению, и контрольного оз. Иртяш. Установлено, что кости окуня в смежных популяциях различаются по форме и характеризуются сходными темпами роста. Половая изменчивость формы костей оказалась в среднем в 5,4 раза меньше межпопуляционных различий. Показано, что с возрастом рост лобной кости замедляется, предкрышечной кости - не меняется, а клейтрума - увеличивается. В популяции окуня из Теченского каскада установлен половой диморфизм размеров костей у старшевозрастных рыб и выявлено снижение уровня половых различий формы лобной и предкрышечной кости. Полученные данные характеризуют высокую степень фенотипической пластичности речного окуня и адаптивную перестройку его морфогенеза к локальной среде техногенных водохранилищ.

The size and shape variability of three bones of the river perch from two adjacent reservoirs in the upper reaches of the river Techa (the Southern Urals) - Techa storage reservoir cascade of liquid radioactive wastes contaminated with technogenic pollution (over 50 years) (TRC) and control lake Irtyash was studied using geometric morphometrics methods. Perch bones in adjacent populations differed in shape and characterized by similar growth rates. The range of sex variability of the bone shape was on average 5.4 times less than the intergroup differences of perch population. It was found out that with age the frontal bone growth has slows down, the praeoperculum growth does not change, and the cleithrum growth increases. The sexual dimorphism in bone sizes of older age fish and low level of sex differences in the shape of frontal bone and praeoperculum in the Techa cascade population was revealed. The obtained data characterize a high degree of phenotypic plasticity of the perch and adaptive restructuring of its morphogenesis associated with local environment of technogenic reservoirs.
ВЛИЯНИЕ КЛИМАТИЧЕСКИХ ИЗМЕНЕНИЙ НА СТРУКТУРУ ЛЕТНЕГО ФИТОПЛАНКТОНА ОЗЕРА ЛЕСНОЙ ЗОНЫ (РАИФСКОЕ, ВОЛЖСКО-КАМСКИЙ ЗАПОВЕДНИК)
Authors: О.В. ПАЛАГУШКИНА , Е.Н. УНКОВСКАЯ , Л.Б. НАЗАРОВА
Published: November 2024

Изменение климата, вызывающее значительные структурные трансформации экосистем, становится одной из наиболее острых экологических проблем современности. Выделить влияние климата на природные сообщества позволяют мониторинговые наблюдения на заповедных территориях, где антропогенные воздействия минимальны. Нами изучено изменение структуры летнего фитопланктона оз. Раифское (Волжско-Камский заповедник) за более чем двадцатилетний период наблюдений и связь этих изменений с факторами среды. Проведенное исследование показало увеличение доли динофитовых водорослей в общей биомассе летнего фитопланктона озера лесной зоны, что больше свойственно структуре сообществ озер лесостепной зоны. Показано ведущее значение климата, в частности температуры воздуха самого теплого месяца (июля), в изменении структуры фитопланктона. Влияние влажности климата (осадков) на сообщество фитопланктона выявлено не было. Наши данные свидетельствуют о том, что современные изменения климата приводят к перестройкам фитопланктонных сообществ, при которых структура биомассы летнего фитопланктона озера лесной зоны Среднего Поволжья может приобретать особенности структуры сообществ озер лесостепной зоны.

Climate change, which causes significant structural transformations of ecosystems, is becoming one of the most acute environmental problems of our time. Monitoring observations in protected areas, where anthropogenic impacts are minimal, highlight the impact of climate on natural communities. We studied the changes in the structure of summer phytoplankton in Lake Raifskoe (Volga-Kama Reserve) and the relationships between these changes and environmental factors for more than twenty years. The study showed an increase in the proportion of dinophyte algae in the total biomass of summer phytoplankton in the studied lake situated in the forest zone. This structural change is more typical of the structure of lake communities in the forest-steppe zone. The climate, and particularly the air temperature of the warmest month (July), plays a leading role in the change in the structure of phytoplankton. The influence of climate humidity (precipitation) on the phytoplankton community was not revealed. Our data show that current climate changes lead to the rearrangement of phytoplankton communities, in which the structure of the biomass of the summer phytoplankton of the studied lake from the forest zone of the Middle Volga region can acquire features of the structure of lake communities from the forest-steppe zone.
МОРФОЛОГИЧЕСКАЯ ХАРАКТЕРИСТИКА ИНВАЗИВНОГО АМЕРИКАНСКОГО КАРЛИКОВОГО СОМИКА AMEIURUS NEBULOSUS (LE SUEUR, 1819) ИЗ ОЗЕР КАРЕЛЬСКОГО ПЕРЕШЕЙКА (СЕВЕРО-ЗАПАД ЕВРОПЫ)
Authors: А.О. ЮРЦЕВА , М.Ю. ЖУКОВ
Published: November 2024

Проводилось изучение инвазивного карликового сомика из двух озер Карельского перешейка по 36 морфологическим признакам, характеризующим форму тела и головы, расположение плавников, число лучей в плавниках и число позвонков. Полученные данные сопоставляли с результатами изучения коллекционных материалов и ранее опубликованными данными для других частей ареала вида с целью оценки внутривидовой дифференциации и морфологической пластичности этого вида-вселенца. Показаны сходство меристических признаков и, напротив, значительные различия пластических признаков в выборках из географически удаленных акваторий Европы, достигающих порогов, установленных для выделения подвидов. Высокий уровень изменчивости пластических признаков у инвазивного карликового сомика свидетельствует о высокой фенотипической пластичности внешних морфологических признаков, влияющих на локомоцию особей, которая рассматривается в качестве одного из факторов, способствующих его успешной адаптации к новым местообитаниям и определяющих инвазивный потенциал этого вида.

Non-indigenous brown bullhead from two lakes of the Karelian Isthmus was studied in relation to 36 morphological features characterizing the shape of the body and head, the position of the fins, the number of finrays and vertebrae. The obtained results were compared with data for the collection materials and earlier published data for other parts of the species distribution range in order to assess the intraspecific differentiation and morphological plasticity of this invasive species. Meristic characters of individuals from geographically distant sites were quite similar and no difference between areas was found. On the contrary, significant differences in morphometric characters between samples from geographically remote water areas of Europe were shown, reaching the thresholds established for subspecies identification. The high level of morphometric variability in the invasive brown bullhead indicates a high phenotypic plasticity in external morphological traits responsible for fish locomotion, which is considered among factors contributing to its successful adaptation to new habitats and determining the invasive potential of this species.
НАСЕЛЕНИЕ МЕЛКИХ МЛЕКОПИТАЮЩИХ В МОЗАИЧНОМ ЛАНДШАФТЕ СЕВЕРНОЙ КУЛУНДЫ (ЗАПАДНАЯ СИБИРЬ)
Authors: Т.А. ДУПАЛ , Ю.Н. ЛИТВИНОВ
Published: November 2024

Проведен анализ населения грызунов и насекомоядных в пяти биотопах южной лесостепи Северной Кулунды. Высокое биоразнообразие характерно для прибрежной полосы с густым травостоем у озера, а низкое - для ковыльно-разнотравной степи. В начале ХХI в. произошла смена доминантов в населении мелких млекопитающих, увеличилось видовое богатство. Из пяти видов бурозубок только обыкновенная, тундряная и малая обитают во всех биотопах. Их суммарная доля в населении каждого биотопа составила от 16 до 38 %. Среди 11 видов грызунов доминирующим видом является узкочерепная полевка. Ее совокупная доля в населении мелких млекопитающих составила 38,3 %. Для этого вида характерен своеобразный цикл численности. Сокращение степных местообитаний привело к уменьшению численности степной пеструшки и изменению ее популяционного цикла. Доля остальных видов грызунов в населении мелких млекопитающих низка.

An analysis of the community of rodents and insectivores in five biotopes of the southern forest-steppe of the Northern Kulunda was carried out. High biodiversity is typical for the coastal strip with dense herbage near the lake, and low biodiversity is typical for the feather grass-forb steppe. At the beginning of the 21st century, there was a change in dominance in the community of small mammals, and the species richness increased. Of the five shrew species, only the common, tundra and lesser shrews inhabit all biotopes. Their total share in each biotope ranged from 16 % to 38 %. Among the 11 rodent species, the narrow-skulled vole is the dominant species. Its cumulative share in the community of small mammals was 38,3 %. This species is characterized by a peculiar cycle of abundance. The reduction of steppe habitats has led to a decrease in the number of steppe lemming and a change in its population cycle. The share of other rodent species in the community of small mammals is low.
АССАМБЛЕЯ ЖУКОВ-НАВОЗНИКОВ (COLEOPTERA, SCARABAEOIDEA) - ОБИТАТЕЛЕЙ КОРОВЬЕГО ПОМЕТА В СЕВЕРНЫХ ОТРОГАХ МАНЬЧЖУРО-КОРЕЙСКИХ ГОР (ДАЛЬНИЙ ВОСТОК РОССИИ)
Authors: С.А. ШАБАЛИН
Published: November 2024

В северных отрогах Маньчжуро-Корейских гор (Приморский край) изучена ассамблея жуков-навозников - обитателей коровьего помета. Приводятся данные о видовом составе, динамике населения, численности и биомассе навозников. Сравнение ассамблей навозников овечьего и коровьего помета долины р. Рязановки показало, что хотя эти ассамблеи географически расположены на идентичных участках, сформировались они на основе общего пула видов и имеют близкий видовой состав жуков, однако структурные особенности этих ассамблей, а также динамические процессы, проходящие в них, имеют существенные различия. Это выражается в более богатом видовом составе жуков в коровьем помете, числе видов в отдельных функциональных группах, в различиях доминирующих видов, особенностях сезонного распределения численности и биомассы (в том числе и пиковых значений этих показателей для отдельных функциональных групп навозников), совокупных показателях перекрытия временных аспектов экологических ниш копрофильных скарабеоидных жесткокрылых. Высказывается предположение, что вышеуказанные различия обусловлены как историческими процессами формирования ассамблей, так и абиотическими факторами, в первую очередь размерами и консистенцией субстрата.

In the northern spurs of the Manchurian-Korean Mountains (Primorsky Territory), an assembly of dung beetles, inhabitants of cow dung, was studied. Data on species composition, population dynamics, number and biomass of dung beetles are presented. A comparison of the assemblies of sheep and cow dung beetles in the conditions of the northern spurs of the Manchurian-Korean mountains showed that, despite the fact that these assemblies are geographically located in identical areas, formed on the basis of a common pool of species and have a similar species composition of beetles, the structural features of these assemblies, and also the dynamic processes taking place in them have significant differences. This is expressed in a richer species composition in cow dung, in the number of species in individual functional groups, in differences in dominant species, in features of the seasonal distribution of abundance and biomass (including the peak values of these indicators for individual functional groups of dung beetles), and in aggregate indicators of overlapping temporal aspects, ecological niches of coprophilous scarab beetles. It is suggested that the above differences are due to both the historical processes of the formation of assemblies and abiotic factors, first at all, by size and consistency of substrate.
ПРОСТРАНСТВЕННО-ВРЕМЕННАЯ ИЗМЕНЧИВОСТЬ НАСЕЛЕНИЯ ПТИЦ Г. УФЫ
Authors: В.В. ЗАГОРСКАЯ , Ю.С. РАВКИН , И.П. КОКОРИНА , М.И. ЛЯЛИНА
Published: November 2024

Проанализированы результаты круглогодичных учетов птиц в г. Уфе за каждую половину месяца в течение чуть более трех лет (с 01.01.2012 по 28.02.2015). Протяженность маршрутов - по 5 км за полмесяца в каждом из пяти участков (многоэтажной застройки, старой и новой индивидуальной застройки, на улицах, в парках и скверах). Всего с подсчетом птиц пройдено примерно 2000 км. Эпизодически учеты вели на р. Белой. Методами кластерного анализа выявлены основные тренды сезонной и территориальной неоднородности орнитокомплексов. Определена информативность полученных представлений с помощью линейной качественной аппроксимации матриц сходства сообществ (один из методов регрессионного анализа). Выделенные сезонные аспекты сопоставлены с фенологическими. Ориентация построенных графов в факторном пространстве сопоставлена с результатами неметрического шкалирования. Составлена карта сезонной и территориальной неоднородности исследованных орнитокомплексов. Последовательное “разворачивание” и детализация представлений с помощью предлагаемых аналитических приемов расширяют возможности анализа неоднородности сообществ и имеют методическое и методологическое значение.

The results of year-round bird counts conducted in Ufa every two weeks for three years (2012-2014), on routes with a length of 5 km in each of the five sites (multi-storey buildings, in areas of old and new individual buildings, on streets and in parks) are analyzed. The methods of cluster analysis revealed the main trends of seasonal and territorial heterogeneity of the bird population. The informativeness of the obtained representations is determined using linear qualitative approximation of community similarity matrices (one of the methods of regression analysis). The selected seasonal aspects are compared with the phenological division according to the seasonal development of nature. The orientation of the constructed graphs in the factor space is compared with the results of non-metric scaling. A map of seasonal and territorial heterogeneity of the surveyed ornithocomplexes has been compiled.
АРЕАЛ КОГТИСТОЙ БУРОЗУБКИ SOREX UNGUICULATUS И СТАТУС ВИДА В ТАКСОЦЕНАХ ЗЕМЛЕРОЕК СЕВЕРО-ВОСТОЧНОЙ АЗИИ
Authors: В.А. НЕСТЕРЕНКО
Published: November 2024

Ведущий полуподземный образ жизни Sorex unguiculatus является фоновым видом землероек центральной части Северо-Восточной Азии, и статья посвящена выяснению его статуса в таксоценах землероек в пределах всего уточненного ареала. Выяснено, что конфигурация современного ареала когтистой бурозубки отличается от общепринятого и его становление происходило путем распространения из двух позднеплейстоценовых рефугиумов - материкового и островного. По статусу когтистой бурозубки в таксоценах землероек выделено три области: этот вид является доминантом в маловидовых островных таксоценах, субдоминантом в насыщенных в видовом отношении таксоценах зоны кедрово-широколиственных лесов Уссурийского края и второстепенным видом в зоне взаимопроникновения неморальной и таежной растительности левобережной части Нижнего Приамурья. Дальнейшее расширение ареала когтистой бурозубки в северо-западном направлении маловероятно в силу специфики требований этого вида к типу и структуре почв, существенно меняющихся в условиях появления вечной мерзлоты, и необходимости сосуществования с экологически близким видом - плоскочерепной бурозубкой.

Semi-fossorial Sorex unguiculatus is a common shrew species in the central part of Northeast Asia, and the paper is devoted to elucidating its status in shrew taxocenes within the entire specified range. The configuration of the modern range of the long-clawed shrew differs from the generally accepted one and its formation occurred through distribution from two Late Pleistocene refugiums - mainland and island. According to the status of the long-clawed shrew in the taxocenes, three areas were distinguished: this species is a dominant in low-species insular taxocenes, a subdominant in multispecies taxocenes of coniferous-broad-leaved forests of the Ussuri Territory, and a minor one in the zone of interpenetration of nemoral and taiga vegetation of the left-bank part of the Lower Amur Region. Further northwest expansion of the long-clawed shrew is unlikely due to the specific requirements of this species for the type and structure of soils, which change significantly under the conditions of the appearance of permafrost, and coexistence with an ecologically close species, the flat-skulled shrew.
ФОНОВОЕ СОДЕРЖАНИЕ ХИМИЧЕСКИХ ЭЛЕМЕНТОВ В РАСТЕНИЯХ СЕВЕРА ЗАПАДНОЙ СИБИРИ И ЕГО ИЗМЕНЕНИЕ ПОД ВЛИЯНИЕМ НЕФТЕГАЗОДОБЫЧИ
Authors: М.Г. ОПЕКУНОВА , А.Ю. ОПЕКУНОВ , С.Ю. КУКУШКИН , И.Ю. АРЕСТОВА , С.А. ЛИСЕНКОВ
Published: November 2024

На основе многолетних исследований (1993-2022 гг.) определено содержание химических элементов (Na, K, Ca, Cu, Zn, Fe, Pb, Sr, Zr, Cd, Ni, Co, Cr, Ba, Cd и Mn) в 17 видах растений севера Западной Сибири. Установлен региональный геохимический фон растений-доминантов и дана оценка изменения химического состава растений в районе разработки нефтегазоконденсатных месторождений севера Западной Сибири. Рекомендованы виды-индикаторы ранних трендов трансформации экосистем под влиянием антропогенной нагрузки и ассоциации химических элементов, связанные с различными источниками загрязнения. Показана роль методов фитоиндикации при малозаметных изменениях состояния окружающей среды в условиях газоконденсатных месторождений.

Based on long-term research (1993-2022), the content of chemical elements (Na, K, Ca, Cu, Zn, Fe, Pb, Sr, Zr, Cd, Ni, Co, Cr, Ba, Cd, and Mn) has been determined in 17 plant species of the northern West Siberia region. The regional geochemical background of dominant plant species has been established, and an assessment of changes in the chemical composition of plants in the area of oil and gas condensate field development in the northern West Siberia region has been provided. Indicator species reflecting early trends in ecosystem transformation under the influence of anthropogenic load and associations of chemical elements linked to various sources of pollution have been recommended. The role of phytoindication methods has been demonstrated in detecting subtle changes in the environmental state in the conditions of gas condensate field sites.
Ways to Reduce the Complexity of Calculations when Calculating Flow Distribution in Incompressible Fluid Networks with Fixed Coefficients of Hydraulic Resistance
Authors:   G.E. Pukhov Institute for Modelling in Energy Engineering  National Academy of Sciences of Ukraine, Kyiv, Vynnychuk S.D.
Published: November 2024

Based on the analysis of the process of solving the problem of flow distribution calcula-tion in compressible fluid systems, which boils down to finding the root of a nonlinear system of equations using the Newton — Raphson method, methods of reducing the complexity of calculations at the stages of the iterative process are proposed. The studies belong to the class of hydraulic systems for which the total pressure change on the branch elements is a monotonic smooth function of the flow rate G. For the iterations of the Newton-Raphson method, the stages are analyzed: linearization of the nonlinear system of equations, determination of the discrepancy and error estimation, determination of cost growth and obtaining a new iterative cost value. A method and algorithm for determining the discrepancy and estimating the error with linear complexity relative to the number of branches of graph E is proposed. A method of reducing the number of unknowns in the system of flow distribution equations at the stage of forming a system of linear equations based on the use of the nodal convolution method is described. A number of variants of heuristic algorithms for determining the parameter that takes into account the rate of in-crease in costs when forming a new iterative value of costs and their analysis are present-ed.
Methodology for Methodology for Transforming Code Sequences in Accordance with the Modulation Disk Coordinate System
Authors:   Institute of Information Registration Problems of the National Academy of Sciences of Ukraine,  Kyiv, Kosyak I.V. , Manko D.Yu. ,   Institute of Information Registration Problems of the National Academy of Sciences of Ukraine,  Kyiv, Belyak Ie.V. ,   Institute of Information Registration Problems of the National Academy of Sciences of Ukraine,  Kyiv, Kryuchyn A.A. ,   Institute of Information Registration Problems of the National Academy of Sciences of Ukraine,  Kyiv
Published: November 2024

An analysis of current approaches used in the design of optical recording systems for modulation disks has been conducted. By adapting mathematical models, software algo-rithms were developed to transform code sequences represented in polar, homogeneous, and parametric coordinate systems, and the unique characteristics of each approach in de-veloping a universal method for ensuring accurate and efficient modulation pattern trans-formation were established. It was noted that the polar coordinate system is the most suit-able for practical applications in code sequence transformations. Its ability to effectively represent circular and symmetrical structures, as well as the convenient representation of objects with radial symmetry, provides advantages in the creation of modulation disks. As a result of the study, effective software solutions for automating data processing in the formation of modulation patterns were identified. The implementation of the developed software algorithms for the presented approach involves adapting the code sequence to the current metric within the design of an optical system based on modulation disks. The pre-sented methodology ensures the ability to transform code sequences regardless of the cho-sen coordinate system, which significantly enhances its flexibility and versatility for prac-tical applications.
The Next Generation of Energy Intelligence: the Tactical Level
Authors:   G.E. Pukhov Institute for Modelling in Energy Engineering  National Academy of Sciences of Ukraine, Kyiv, Generation А.
Published: November 2024

This article analyzes research dedicated to energy intelligence and proposes a definition of this concept as the process of systematically gathering and analyzing information about the energy resources, markets, policies, and technologies of countries. This process ena-bles the assessment of their economic and security impacts on a global (strategic) level. The article describes the purpose and primary objectives of energy intelligence, which in-volve the systematic collection and analysis of information about energy resources, mar-kets, and policies to understand their impact on business decisions, economic factors, and security aspects through a deep analysis of energy trends and geopolitical risks. The clas-sification of energy intelligence is provided, highlighting its main types. The article de-scribes the methods of energy intelligence (SIGINT, IMINT, OSINT, HUMINT, EX-IMINT) used for collecting and analyzing information about energy systems and re-sources. The subtypes of military energy intelligence are examined separately, emphasiz-ing their role in military conflicts. An important aspect of the article is the development of a method for parametric identification of military targets based on energy consumption values, which allows for more precise identification and evaluation of military targets in modern combat scenarios. Thus, the article provides a comprehensive overview of the top-ic, emphasizing the importance of an integrated approach and the involvement of various stakeholders to ensure effective energy intelligence.
Peculiarities and Development of Leak Detection Methods for Heat and Water Supply Pipelines Under Wear and Military Impacts
Authors:   G.E. Pukhov Institute for Modelling in Energy Engineering  National Academy of Sciences of Ukraine, Kyiv, Vladimirsky A.A. , Vladimirsky I.A. ,   G.E. Pukhov Institute for Modelling in Energy Engineering  National Academy of Sciences of Ukraine, Kyiv, Artemchuk V.O. ,   G.E. Pukhov Institute for Modelling in Energy Engineering  National Academy of Sciences of Ukraine, Kyiv, Kryvoruchko I.P. ,   G.E. Pukhov Institute for Modelling in Energy Engineering  National Academy of Sciences of Ukraine, Kyiv, Semenyuk D.M. ,   G.E. Pukhov Institute for Modelling in Energy Engineering  National Academy of Sciences of Ukraine, Kyiv
Published: November 2024

The article is dedicated to analyzing the current state of underground heat and water supply pipelines in Ukraine, particularly under conditions of significant wear and tear and military impacts. The challenges associated with the operational detection of hidden leaks are exami¬ned, as well as the capabilities of known methods for identifying damaged sections and leak locations. The development of acoustic and correlation leak detectors is discussed as a promi¬sing direction for improving pipeline diagnostics in war conditions and amid network dete¬rioration. Several innovations are proposed, including a new parametric correlation method, spatial-frequency selection of useful leak signals, and other advancements to enhance the diag¬nostics of critical infrastructure. These measures aim to improve the effectiveness of leak de¬tection, ensure the continuity of essential services, and strengthen the resilience of the energy system in the face of current challenges.
Remotely Manage the Power of Iot Devices
Authors:   Vinnytsia Technical Vocational College, Tsyrulnyk S. ,   Vinnytsia National Agrarian University, Tsyrulnyk M. ,   Donetsk National University named after V. Stus, Vinnytsia, Tkachuk V. ,   Vinnytsia Technical Vocational College, Kylymchuk O. ,   IT company Ciklum, Vinnytsia
Published: November 2024

This paper considers the practical aspects of designing a programmable power supply unit with remote control based on Quick Charge technology. To build a programmable power supply unit with remote control and mobile phones with power sources/chargers using Quick Charge 2.0, 3.0 technology. This work presents a scheme and software for the control module of a programmable power supply unit based on Quick Charge technology, which works in accordance with the developed algorithms. The conducted modeling and experimental studies confirmed the possibility of remotely changing the output voltage of the adapter with the help of the proposed control module and the corresponding software. Remote power management of the IoT device can be performed using USB ports, Bluetooth wireless interfaces, Wi-Fi.
Generalized Modular Method of Project Risk Management
Authors:   Kharkiv National University of Radio Electronics, Міkhnova О.D. , Міkhnova А.V. ,   Kharkiv National University of Radio Electronics
Published: November 2024

The article discusses risk management models and frameworks implemented during the development of multi-user cross-platform distributed IT projects. For this class of pro-jects, the use of quantitative risk assessment methods, rules for absorbing and adding risks, which make it pos¬sible to systematically assess the likelihood of negative events and their impact on each stage of the project, are observed. Authors propose a method of modular risk management, present the main indicators for assessing the progress of the implementation of the i-th module and its operational ma¬nagement, and provide a formula for calculating project efficiency. These calculated indicators can be used to estimate the cost of resources at a certain point in time, estimate the timeframe for completing the module, and decide on the feasibility of further development.
Analysis of Modern Methods and Information Technologies of Distance Learning
Authors:   State University of Trade and Economics, Kyiv, Savon O.
Published: November 2024

Modern methods and information technologies of distance learning in Ukraine (virtual class, immersive technologies, video conferences, recording of classes, online presenta-tion, electronic journals and diaries) were studied to determine ways to increase their use. The most popular educational platforms for distance learning are considered: Microsoft Teams, Google Classroom, Moodle, «HUMAN School», JustClass, National educational platform «Vseosvita». The advantages of using modern distance learning technologies and the prospects for further research in the context of the development of innovative technol-ogies for informatization and intellectualization of society are outlined.
Resilience in Nuclear Energy Definition and Conceptualization
Authors:   Separate subdivision ", Dybach O.M. ,   Center of innovation in nuclear technologies for a safe future",   of the State Enterprise ",   State Scientific and Technical Center for Nuclear and Radiation Safety",   , Slavutych
Published: November 2024

The paper presents an analysis of the concept of resilience within the framework of critical infrastructure, specifically focusing on nuclear energy. It offers a definition of resilience tailored to the nuclear sector, emphasizing the critical role in ensuring nuclear and radia-tion safety at nuclear power plants. The study draws a parallel between the resilience con-cept and the defense-in-depth strategy widely adopted in nuclear power plants, highlight-ing the importance of resilience in addressing high-impact, low-probability events. The research identifies key directions for advancing the understanding and application of resilience in nuclear energy, including the development of assessment methodologies that align with nuclear safety standards. The article underscores the potential benefits of integrating resi¬lience into existing safety paradigms, proposing that such integration could enhance the ability of nuclear power plants to anticipate, withstand, and recover from ex-treme disruptions (initia¬ting events), thereby contributing to the overall sustainability of nuclear energy systems.
Unveiling the Hidden Dynamics: Role of HRM in Supporting the Health and Safety of Healthcare Workers in the Post-COVID-19 Pandemic World of Work: An Integrative Review
Authors: Bangura Samuel
Published: November 2024

Purpose: The main purpose of the study was to uncover the hidden dynamics of HRM's role in supporting the health and safety of healthcare workers in the current world of work. It specifically focuses on an integrative review conducted in Durban, Republic of South Africa.
Design/Method/Approach: An integrative review was conducted on 26 research articles and journals from reputable sources such as Google Scholar and Ebsco-host. The focus of the review was on the impact of human resource management on the well-being of healthcare workers during the COVID-19 pandemic. A total of 200 results were collected and categorised based on specific inclusion criteria, with a focus on the intersection of HRM, COVID-19, and healthcare workers. Articles that did not directly address how HRM can improve the performance and safety of healthcare workers were excluded. The authors carefully reviewed the abstracts and titles of the articles to ensure they met the inclusion criteria. After removing duplicate entries, 26 articles were identified as relevant to the study and were analysed alongside other pertinent literature.
Findings: The findings of this study highlight the significant impact of HRM in effectively addressing challenges related to the healthcare workforce during crises, such as the COVID-19 pandemic.
Theoretical and Practical Implications: The findings of this study highlight the significant impact of human resource management in effectively addressing challenges related to the healthcare workforce during crises, such as the COVID-19 pandemic.
Originality/Value: The study highlights and reinforces the significance of HRM as a key stakeholder in workforce operations. Organizational management must acknowledge this role. This is evident in the recommendation of the 6Cs of HRM as a pathway to effectively manage the health and safety of healthcare workers.
Research Limitations/Future Research: The study highlights the significance of HRM in organisations during times of crisis, such as a pandemic. It is important to recognise the necessity for further research employing quantitative or mixed methods to obtain a comprehensive understanding of how HRM plays a crucial role in effectively addressing and managing healthcare workers amidst challenging situations.
Paper Type: Conceptual
JEL Classification: I18, J28, J81, M12, M54
Influence of Participatory Decision-Making on Performance of HIV/AIDS Community Health Projects in Kisumu County, Kenya
Authors: Odawa Grace Ojall , Rambo Charles Mallans , Otieno-Omutoko Lillian , Richu Salome Wambui
Published: November 2024

Purpose: There are efforts to combat HIV/AIDS through Sustainable Development Goal and so, HIV/AIDS community health projects have been implemented to shape HIV/AIDS management and care. The present study examined influence of participatory decision-making on performance of HIV/AIDS community health projects in Kisumu County, Kenya. The study was grounded on stakeholder’s theory because the HIV/AIDS community health projects in Kenya is a results-oriented performance measurement system.
Design/Method/Approach: The research design was descriptive survey design and purposively selected 59 HIV/AIDS project managers and 59 Monitoring and evaluation officers, while 379 beneficiaries were randomly selected using Krejcie and Morgan formula. Structured questionnaires were used to collect quantitative data, which was analyzed through descriptive statistics (frequencies, percentages, mean score and standard deviation) as well as Pearson correlation and regression analysis.
Findings: The study found a significant positive effect of participatory decision-making on performance of HIV/AIDs Community Health Projects at p<0.05. Participatory decision-making increases or enhances performance of HIV/AIDS Community Health Projects in Kisumu County.
Theoretical and Practical Implications: This paper contributed to the body of research on participatory management by underscoring the argument that participatory decision making enhances the performance of HIV/AIDs community health projects.
Originality/Value: This research not only demonstrates how community health projects can efficiently run through involvement of primary stakeholders (beneficiaries), it is also an example of an application of stakeholder’s theory to a practical field.
Research Limitations/Future Research: This research opens opportunities for future research on participatory management in community health projects.
Paper Type: Empirical
JEL Classification: D83, I18, L31, O15
EI & AI In Leadership and How It Can Affect Future Leaders
Authors: Vivek Ramakrishnan , Krupskyi Oleksandr P.
Published: November 2024

Purpose: The aim of this study is to examine how the integration of Emotional Intelligence (EI) and Artificial Intelligence (AI) in leadership can enhance leadership effectiveness and influence the development of future leaders.
Design / Method / Approach: The research employs a mixed-methods approach, combining qualitative and quantitative analyses. The study utilizes secondary data sources, including scholarly articles, industry reports, and empirical studies, to analyze the interaction between EI and AI in leadership settings.
Findings: The findings reveal that the integration of EI and AI significantly improves decision-making, strategic planning, talent management, and communication within organizations. Leaders who leverage both EI and AI experience higher employee satisfaction, improved team performance, and enhanced organizational outcomes.
Theoretical Implications: This study contributes to leadership theory by introducing a novel framework that demonstrates the complementary roles of EI and AI in leadership.
Practical Implications: The research offers practical guidelines for leadership development, emphasizing the need for future leaders to integrate EI and AI skills in order to navigate complex business environments successfully.
Originality / Value: The paper provides an original framework for the integration of EI and AI in leadership, offering new insights into how these two elements can work together to improve leadership effectiveness.
Research Limitations / Future Research: Future research should further explore the empirical impact of EI and AI integration in various industries and leadership levels to generalize findings across broader contexts.
Paper Type: Conceptual
JEL Classification: D83, M12, M15, L21, O33
Modeling the Relationship between Some Leadership Styles on the Cohesion of the Educational Group using PLS modeling – a Field Study on a Sample of Primary Education Teachers in the City of Messaad
Authors: Lakhdar Chibout , Abdelkader Khader , Ouledhaimouda Djemaa
Published: November 2024

Purpose: This study aims to clarify the relationship between the three leadership styles (democratic, authoritarian, and Delegative) of primary school principals and their relationship to educational group cohesion from the point of view of primary education teachers.
Design/Method/Approach: The study is an experimental study that reveals the administrative leadership styles of the school principal and their relationship to the cohesion of his group, using the descriptive, relational approach. We also used the questionnaire tool to collect data for 376 male and female teachers in primary education.
Findings: Through analyzing the model, we found that there is a direct relationship between the democratic style of primary education principals in the city of Messaad and the cohesion of the educational group from the teachers’ point of view. While the delegative(Laissez-Faire)leadership style and the authoritarian style do not affect the cohesion of the educational group from the point of view of teachers.
Theoretical Implications: This paper presents two significant studies on leadership styles, group dynamics, and cohesion, providing a basis for comparison with the findings of the current study. Additionally, it includes comprehensive definitions of the study's key terms.
Originality/Value: This study is one of the first studies that was applied in the researchers’ environment, as this study helps school principals and supervisors adopt the appropriate method in managing their institutions in accordance with the needs and requirements of subordinate teachers in order to work efficiently and provide the best performance.
Research Limitations/Future Research: This study provides prospects for future research on appropriate leadership styles as well as factors that help maintain group cohesion.
Paper Type: Empirical
JEL Classification: C93, D23, C92, M12