Издательство: М. В. Клюкин
Год выпуска: 1915
Количество страниц: 44 с.
Количество страниц: 10 с.
The construction of linear structures significantly impacts the livelihoods of wild ungulates in Yakutia, disrupting the integrity of the natural environment by fragmenting forest areas and reducing the extent of forest biocenoses and wildlife habitats. Between 2015 and 2022, studies were conducted to assess the impact of the Berkakit-Tommot-Nizhny Bestyakh railway on the movements of wild ungulates in Central Yakutia. During the winter months (November to January), seven trails, totaling 280 km, were surveyed along a 40 km section of the railway. A total of 115 tracks from four species of wild ungulates-Siberian roe deer, wild reindeer, red deer, and elk-were recorded over various years. We observed that the negative impact of the engineering structure on the movements of wild ungulates was primarily evident during the initial phase of its construction. During the early stages of railway construction, the high level of disturbance and the introduction of an unfamiliar artificial structure disrupted the natural movement patterns of wild ungulates. However, these patterns were restored following the completion of the railway. Wild ungulates exhibited varying responses to the unfamiliar artificial structure: wild reindeer began to cross the railway in the first year after its construction, while roe deer and red deer did so within one year, and elk took six years to adapt. The natural movement routes of wild ungulates were reestablished four to five years after the railway was completed. The succession of vegetation in the altered forest landscapes along the railway enhanced the forage base for roe deer, red deer, and elk, as abundant grass and shrub cover emerged, leading to the development of new alternative habitats in the previously disturbed areas. Therefore, the Berkakit-Tommot-Nizhny Bestyakh railway, at its current level of operational intensity, does not pose a significant threat to the movement paths of wild ungulates.
Аргунов, А. В.
Воздействие железной дороги на перемещение диких копытных в Центральной Якутии / А. В. Аргунов ; Институт биологических проблем криолитозоны СО РАН // Природные ресурсы Арктики и Субарктики. - 2024.- N 4, Т. 29. - C. 641-650. - DOI: 10.31242/2618-9712-2024-29-4-641-650
DOI: 10.31242/2618-9712-2024-29-4-641-650
Количество страниц: 13 с.
This study reports the findings of a morphometric analysis conducted on 358 worker specimens of the white-tailed bumblebee, Bombus lucorum, which were collected from the Middle Lena Valley (Central Yakutia) and the Yana River Valley (Central Upper Yana Region, North-Eastern Yakutia). Statistical analyses, including one-way and two-way ANOVA, were employed to evaluate the data. The results indicated that bumblebees from the Central Upper Yana Region exhibited larger body and wing dimensions compared to their counterparts from Central Yakutia; however, significant differences were only noted in the measurements of the notum and abdomen widths (p < 0.01), as well as in all measurements of the front and hind wings (p < 0.001). These changes are posited to have developed as adaptations to more extreme natural and climatic conditions. Furthermore, it was observed that bumblebee workers of B. lucorum collected during the latter part of summer were statistically larger than those gathered earlier in the season. A notable difference was identified between two micropopulations within the Yana River Valley, where bumblebees from a non-transformed biotope were larger than those from a post-fire succession, likely attributable to variations in the availability of trophic resources. In the Middle Lena Valley, the body size of B. lucorum exhibited a significant correlation with forage availability, with larger individuals preferentially utilizing larger plants and inflorescences. Consequently, the sizes and proportions of bumblebee workers of B. lucorum in the North are influenced by a variety of environmental factors, including climatic and biotopic conditions, as well as the availability of trophic resources.
Эколого-географическая изменчивость морфометрических признаков рабочих особей Bombus lucorum L. (Hymenoptera: Apidae) в условиях Севера / В. Ю. Солдатова, Е. Г. Шадрина, Н. Г. Давыдова, М. Ю. Затеев ; Северо-Восточный федеральный университет им. М. К. Аммосова, Институт биологических проблем криолитозоны // Природные ресурсы Арктики и Субарктики. - 2024. - N 4, Т. 29. - C. 628-640. - DOI: 10.31242/2618-9712-2024-29-4-628-640
DOI: 10.31242/2618-9712-2024-29-4-628-640
Количество страниц: 10 с.
The aim of this research was to investigate the hibernation pattern of the Siberian chipmunk across a broad range of temperatures, to determine the optimal temperature for hibernation, and to assess their ability to hibernate in relatively low environmental temperatures. In late August, three chipmunks had thermochron temperature sensors (DS-1922L-F5) surgically implanted to monitor their body temperature. The hibernation cycles of four chipmunks were studied by altering the temperature in their nesting materials. When the animals were moved to an underground lab with a temperature of -4 °C, the difference between their body temperature and the surrounding temperature increased by nearly 8 °C, reaching 12 °C to 14 °C as the ambient temperature dropped further. The length of hypothermia periods decreased while the frequency of awakenings increased. The lowest recorded body temperature was at least 1 °C. The longest hypothermia durations occurred in chipmunks exposed to temperatures between -4 °C and 4 °C, lasting 226 to 283 hours (9.4 to 11.8 days). For two chipmunks hibernating at temperatures below -6 °C, the hypothermia intervals averaged 73 and 99 hours, while other individuals had intervals of 174 to 188 hours. The optimal hibernation temperature range for chipmunksin Yakutia is between -4 °C to -6 °C and +5 °C to +6 °C. Hibernation ceases at ambient temperatures above 12 °C to 14 °C. When temperatures drop below -6 °C to -10 °C, the hibernation rhythm changes, resulting in shorter hypothermia intervals,similar to those observed at higher positive temperatures. This research enhances our understanding of how relatively small mammals can hibernate in low ambient temperatures (down to -10 °C). The findings may also be relevant for comparative studies on the hibernation of other small winter-hibernating mammals, such as hamsters and dormice, weighing up to 100 grams.
Ануфриев, А. И.
Температура тела и ритмика спячки бурундука Eutamias sibiricus в различных диапазонах окружающих температур / А. И. Ануфриев, В. Ф. Ядрихинский ; Институт биологических проблем криолитозоны СО РАН, Арктический государственный агротехнологический университет // Природные ресурсы Арктики и Субарктики. - 2024. - N 4, Т. 29. - C. 618-627. - DOI: 10.31242/2618-9712-2024-29-4-618-627
DOI: 10.31242/2618-9712-2024-29-4-618-627
Издательство: Книжное издательство
Год выпуска: 1965
Количество страниц: 156 с.
Издательство: Судаарыстыба үөрэх-бэдэгиэгикэ кинигэтин бэчээтэ
Год выпуска: 1935
Количество страниц: 200 с.
Издательство: Саха сиринээҕи кинигэ издательствота
Год выпуска: 1953
Количество страниц: 326 с.
Издательство: РСФСР ҮНК государственнай үөрэх-педагогика издательствата
Год выпуска: 1940
Количество страниц: 284 с.
Год выпуска: 2024
Количество страниц: 11 с.
The Yana River basin in the Yana-Indigirka Lowland is one of the richest regions of Yakutia in paleontological finds of animals representing the mammoth fauna with soft tissues. More than 130 years ago, a large collection of paleontological material was collected by the royal expedition led by A. A. Bunge and E. V. Toll (1885-1886), which is stored in the storerooms of the Zoological Institute of the Russian Academy of Sciences in St. Petersburg. Previously known unique finds on the middle reaches of the Yana River included the Lena horse body fragment (2009), juvenile bison (2009), collared lemming (2012), and Verkhoyansk foal (2018) discovered at the Batagaika location. In 2023, during field work, paleontological and palynological material was collected at the main locations of the Yana River basin. New data on the quantitative and percentage ratio of mammoth fauna species at the Khaastaakh locality are presented, as well as some morphometric indicators for a fragmented fossil bison body. For a comprehensive study of the localities, various methods of paleogeographic reconstructions were used, including paleontological, palynological and radiocarbon analyses. These methods were aimed at identifying temporal patterns of variability of natural conditions at the Pleistocene-Holocene boundary. The results of the latest findings supplement the information on the distribution of representatives of the mammoth fauna in the territory of Yakutia in the late Pleistocene and Holocene.
Новгородов, Г. П. Новые данные по местонахождениям мамонтовой фауны в среднем течении р. Яна (Северо-Восток Якутии) / Г. П. Новгородов, А. Н. Тихонов ; Северо-Восточный федеральный университет им. М. К. Аммосова, Зоологический институт РАН // Вестник Северо-Восточного федерального университета им. М. К. Аммосова. - 2024. - Т. 21, N 4 (98). - С. 34-44. - DOI: 10.25587/2222-5404-2024-21-4-34-44
DOI: 10.25587/2222-5404-2024-21-4-34-44