Arid Ecosystems最新文献

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Food Preferences of Three Species of Woodlouse and Their Rate of Consumption of Plant Residue 三种木虱的食物偏好及其对植物残渣的消耗率
IF 0.6
Arid Ecosystems Pub Date : 2025-09-02 DOI: 10.1134/S2079096124700628
F. A. Demin, D. I. Korobushkin, K. B. Gongalsky
{"title":"Food Preferences of Three Species of Woodlouse and Their Rate of Consumption of Plant Residue","authors":"F. A. Demin,&nbsp;D. I. Korobushkin,&nbsp;K. B. Gongalsky","doi":"10.1134/S2079096124700628","DOIUrl":"10.1134/S2079096124700628","url":null,"abstract":"<p>Rice and wheat straw are among the most common types of field residues. Earlier studies have shown that some soil detritophages, such as enchytraeids and woodlice, are able to utilize these residues at varying efficiency rates even under arid conditions, in which organic matter degradation is very slow. We have evaluated the decomposition of oak, birch, raspberry, linden, willow, wheat, rice, and corn residues by the <i>Porcellio scaber</i>, <i>Porcellionides pruinosus</i>, and <i>Porcellio laevis</i> woodlice. Ten woodlice belonging to each of the studied species were placed in containers, where they could choose from 1 g of each type of plant feed, for 21 days. The woodlice preferred linden, willow, birch, and corn residues, these being mostly feeds with a low silicon concentration. <i>Porcellio laevis</i> showed a wide range of food preferences and high survival rates on different feeds. Thus, when the structure of plant food resources in southern Russia changes, the studied species of woodlice are able to change their diet and switch to more accessible food sources. From the industrial point of view, <i>P. laevis</i> may be efficiently used for processing corn stover, including because of the low silicon content in its leaves.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 1","pages":"96 - 102"},"PeriodicalIF":0.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Taxonomic Analysis of Flora on the Sands of the Don River Valley and Clarification of the List of Rare Species 顿河流域沙地植物区系分类分析及珍稀物种名录澄清
IF 0.6
Arid Ecosystems Pub Date : 2025-09-02 DOI: 10.1134/S207909612570012X
M. V. Vlasenko
{"title":"Taxonomic Analysis of Flora on the Sands of the Don River Valley and Clarification of the List of Rare Species","authors":"M. V. Vlasenko","doi":"10.1134/S207909612570012X","DOIUrl":"10.1134/S207909612570012X","url":null,"abstract":"<p>The taxonomic structure of the flora of the Archedinsko-Donskoi sandy massif is analyzed and rare species are identified. The novelty of this research lies in obtaining new data for adjusting schemes of botanical–geographical zoning of steppe territories in the southern part of Russia as a whole and the distribution area of sandy massifs in particular. The formation of the floristic list was based on data obtained during field surveys conducted between 2016 and 2024, as well as from the flora list available in the Global Biodiversity Information System (GBIF) of the INaturalist platform, which contains information on plant findings for the period from 1990 to 2024. It has been established that the current floristic list of the sandy massif comprises 677 species from 324 genera and 95 families, belonging to eight classes and seven divisions. The division Magnoliophyta is the most represented, accounting for 79% of the flora of the territory. The overall generic coefficient is 2.09. The highest generic coefficients are observed in the families Amaryllidaceae (11.0), Plantaginaceae (8.25), Cyperaceae (6.8), Juncaceae (6.0), Salicaceae (5.0), and Violaceae (5.0). The leading position in the flora is held by the family Asteraceae, represented by 103 species (15.2%), and the family Poaceae, which includes 68 species (10.0%). A large number of taxa are also characteristic of the families Cyperaceae (34), Plantaginaceae (33), Caryophyllaceae (32), Fabaceae (31), Lamiaceae (29), Brassicaceae (22), Rosaceae (20), and Amaranthaceae (17). The sandy landscapes of the Archedinsko-Donskoi massif with elements of boreal flora, confined to reservoirs, floodplain areas, and areas with an atypical water regime, are a unique object for the conservation and maintenance of the biological diversity of steppe territories. Here 30 species listed in the <i>Red Book of Volgograd Oblast</i> (2017) and 12 species listed in the <i>Red Book of the Russian Federation</i> (2008) were identified. They are under threat of extinction: <i>Aldrovanda vesiculosa</i> L., <i>Lycopodiella inundata</i> (L.) Holub., <i>Lycopodium clavatum</i> L., <i>Climacium dendroides</i> (Hedw.) Web. et Mohr., and <i>Clematis orientalis</i> L. The largest list of Red Book representatives is represented by the families <i>Asteraceae</i> (three types) and <i>Orchidaceae</i> (four types). The research results can be useful in studying the ecology of plant communities and the species in them, for the restoration and preservation of lost biological diversity of the vegetation cover of sandy ecosystems.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 2","pages":"216 - 224"},"PeriodicalIF":0.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diversity of Cyanobacteria and Algae in Erodited Soils of the Fergana Valley (Uzbekistan) According to Light Microscopy Data and High-Throughput Sequencing ferghana Valley (Uzbekistan)侵蚀土壤中蓝藻和藻类的多样性——基于光学显微镜数据和高通量测序
IF 0.6
Arid Ecosystems Pub Date : 2025-09-02 DOI: 10.1134/S2079096125700143
Yu. A. Tukhtaboeva, V. V. Redkina, Yu. S. Bukin, A. D. Temraleeva
{"title":"Diversity of Cyanobacteria and Algae in Erodited Soils of the Fergana Valley (Uzbekistan) According to Light Microscopy Data and High-Throughput Sequencing","authors":"Yu. A. Tukhtaboeva,&nbsp;V. V. Redkina,&nbsp;Yu. S. Bukin,&nbsp;A. D. Temraleeva","doi":"10.1134/S2079096125700143","DOIUrl":"10.1134/S2079096125700143","url":null,"abstract":"<p>For the first time, comparative data on the taxonomic composition of cyanobacterial and algal communities of eroded soils in the Fergana Valley (Uzbekistan), which were obtained using morphological analysis and microbiological profiling, are presented. The characteristic features of the algal flora of the eroded soils of the Rezoksai ravines, compared to the soils of the Levye Hills, were the presence of yellow–green algae, the absence of heterocytic cyanobacteria capable of nitrogen fixation, an increase in the proportion of monadic forms and/or algae capable of zoosporogenesis, and generally lower taxonomic richness and diversity of algae. Light microscopy was shown to confirm in part the diversity of cyanobacteria and algae in the studied soils estimated by high-throughput sequencing, but only detected in about half of the taxa. However, the presence of yellow–green algae was demonstrated solely by light microscopy and not by metabarcoding. The use of the V3–V4 region of the chloroplast 16S rRNA gene allowed us additionally to identify genera of green algae in the algal flora such as <i>Edaphochlorella</i>, <i>Pseudomuriella</i>, <i>Watanabea</i>, as well as diatoms of the genera <i>Bacillaria</i>, <i>Fistulifera</i>, <i>Entomoneis</i>, and charophyte algae <i>Klebsormidium</i>. Nevertheless, approximately 20% of algae remain unidentified due to the lack of reference sequences for the green microalgae ITS2 in genetic databases.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 2","pages":"232 - 245"},"PeriodicalIF":0.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular Structure of Humic Acids from Chestnut Soils of Transbaikalia 外贝加尔湖栗色土壤腐殖酸的分子结构
IF 0.6
Arid Ecosystems Pub Date : 2025-09-02 DOI: 10.1134/S2079096125700064
E. Yu. Milkheev, E. V. Tsybikova
{"title":"Molecular Structure of Humic Acids from Chestnut Soils of Transbaikalia","authors":"E. Yu. Milkheev,&nbsp;E. V. Tsybikova","doi":"10.1134/S2079096125700064","DOIUrl":"10.1134/S2079096125700064","url":null,"abstract":"<p>The bioclimatic conditions of soil formation in the cryoarid climate zone of Western Transbaikalia determine the specific composition of humic substances, but the heterogeneity of these compounds, as well as the widely used classical methods of organic matter analysis, does not allow us to judge with sufficient confidence the structure of high-molecular organic compounds in soils. <sup>13</sup>C-NMR spectroscopy of humic acid preparations from chestnut soils made it possible to identify the ranges of chemical shifts belonging to carbon atoms of various functional groups and molecular fragments. The peculiarity of the humus formation process in chestnut soils is that, despite the harsh conditions of soil formation (the influence of long-term seasonal permafrost, continental climate), humic acids with a fairly high content of C, N, and O are formed. Macromolecules of humic acids in arable samples of chestnut soils are characterized by a less developed peripheral part and a high benzenoid index compared to humic acids of the virgin variant, which is due to the environmental conditions of soil formation and the component composition of humification precursors. An increase in the proportion of aliphatic structures and a decrease in the proportion of aromatic fragments allow us to talk about a simplification of the structure of humic acid macromolecules. A short growing season and insufficient moisture in combination with a light granulometric composition significantly reduce the rate of transformation of organic matter and lead to an increase in the proportion of unoxidized aliphatic fragments.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 2","pages":"166 - 172"},"PeriodicalIF":0.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Arable Dry-Steppe Soils of Western Transbaikalia: Morphology, Soil Properties, Microbial Biomass, and Humic Acids 跨贝加尔湖西部干草原耕地土壤:形态、土壤性质、微生物生物量和腐殖酸
IF 0.6
Arid Ecosystems Pub Date : 2025-09-02 DOI: 10.1134/S2079096125700088
E. O. Chimitdorzhieva, Ts. D-Ts. Korsunova, E. V. Tsybikova
{"title":"Arable Dry-Steppe Soils of Western Transbaikalia: Morphology, Soil Properties, Microbial Biomass, and Humic Acids","authors":"E. O. Chimitdorzhieva,&nbsp;Ts. D-Ts. Korsunova,&nbsp;E. V. Tsybikova","doi":"10.1134/S2079096125700088","DOIUrl":"10.1134/S2079096125700088","url":null,"abstract":"<p>The properties of soils, C-biomass, and the structure of humic acids of arable chestnut soils of Western Transbaikalia were studied. The objects of this study were arable chestnut soils of the southern basins of Western Transbaikalia (Tugnuyskaya basin, Selenginskaya basin, Ivolginskaya basin). For comparison, arable soils were studied in pairs with virgin soil analogues. Arable chestnut soils are characterized by low fertility: low humus content of 0.98 ± 0.07%, low total nitrogen content of 0.08 ± 0.01%, arable horizon thickness of 21.33 ± 2.31 cm, and a light loamy granulometric composition. During the growing seasons, the average biomass carbon accumulation rates in chestnut soils were 35.77 ± 3.09 mg C/100 g of soil. The share of C-biomass in the total stock of soil organic carbon for the studied soils is up to 2.5%. The content of aliphatic carbon in arable chestnut soil is also lower than in virgin soil. The content of the amino group and methoxyl group carbon in virgin soil is 7.9 ± 0.14%; in arable soils this indicator is almost two times lower. The amount of carbon in carboxyl groups is 15.5 ± 0.42% in arable chestnut soils; in virgin soils the indicator was 12.55 ± 0.92%. Spectrum analysis of <sup>13</sup>C-nuclear magnetic resonance (NMR) spectroscopy of humic acids (HAs) in soils can provide important information on the chemical composition and structural features of organic matter in soils. For arable and virgin chestnut soils of Transbaikalia, such an analysis can reveal differences associated with the use of land in agriculture. Aliphatic carbon in the HA of arable soil is expressed less strongly, which indicates a greater role of aromatic carbon in its macromolecular structure. A pattern is observed: in arable lands the content of aliphatic compounds is lower than in virgin lands. It has been found that agricultural tillage leads to a change in the molecular structure of humic acids, which is expressed in an increase in the proportion of aromatic carbon in arable soil. In the elemental composition of HA in cultivated chestnut soils of Transbaikalia, the carbon content is higher and the hydrogen content is lower compared to virgin analogues. The high hydrogen content in virgin soils leads to relatively developed lateral carbon chains in HAs. In cultivated chestnut soil, the HA macromolecule contains more nitrogen (2.9 at %) than in virgin soil (2.7 at %). The atomic ratio H : C in cultivated chestnut soil was 1.0, while in virgin soil it was 1.1. In cultivated variants, the degree of benzenoid content (BC) is 22.5, while in virgin soil the indicator is lower at 16.4. It was established that the elemental composition of cultivated chestnut soils is characterized by a more condensed structure compared to virgin soils.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 2","pages":"180 - 189"},"PeriodicalIF":0.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Plants Hazardous to Human Health in Kazakhstan 哈萨克斯坦危害人类健康的植物
IF 0.6
Arid Ecosystems Pub Date : 2025-09-02 DOI: 10.1134/S2079096124700604
T. V. Dikareva, V. Yu. Rumyantsev, M. S. Soldatov
{"title":"Plants Hazardous to Human Health in Kazakhstan","authors":"T. V. Dikareva,&nbsp;V. Yu. Rumyantsev,&nbsp;M. S. Soldatov","doi":"10.1134/S2079096124700604","DOIUrl":"10.1134/S2079096124700604","url":null,"abstract":"<p>The aim of this work was to identify patterns in the distribution of species diversity of allergenic and poisonous plants across the floristic regions of the Republic of Kazakhstan. As a result of this research, 51 of the most toxic species of vascular plants belonging to 34 families were identified on the territory of the republic. The list of allergenic plants includes 59 species belonging to six families. An additional analysis of the distribution patterns of allergenic and poisonous plants was conducted, based on their relationship with leading environmental factors. The positive relationship between the number of allergenic species and the aridity index values shows that an increase in the number of allergenic species occurs with an increase in climate humidity. The high correlation between the number of poisonous species and the average annual precipitation suggests that the number of poisonous species increases with an increase in floristic diversity in the arid and semi-arid regions of Kazakhstan. The conducted cartographic analysis showed that the greatest number of allergen species of different groups blooming from spring to autumn includes the following floristic regions: forest–steppe, arid steppes, dry and desert steppes, and northern deserts and mountains. The greatest number of poisonous plant species is found in mountainous regions with high floristic diversity.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 1","pages":"81 - 88"},"PeriodicalIF":0.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aspects of Heat Availability and Heat Demand of Crops in the Context of Climate Change (Ararat Valley and Foothill Zone) 气候变化背景下作物热可利用性和热需求特征(亚拉腊河谷和山麓地区)
IF 0.6
Arid Ecosystems Pub Date : 2025-09-02 DOI: 10.1134/S207909612470063X
V. G. Margaryan, V. V. Sevastianov
{"title":"Aspects of Heat Availability and Heat Demand of Crops in the Context of Climate Change (Ararat Valley and Foothill Zone)","authors":"V. G. Margaryan,&nbsp;V. V. Sevastianov","doi":"10.1134/S207909612470063X","DOIUrl":"10.1134/S207909612470063X","url":null,"abstract":"<p>The specificities of heat availability and crop demands for the sum of temperatures above 10°C on the territory of the Ararat Valley and its foothills are discussed. The patterns of multiyear fluctuations of heat availability are assessed in the context of the global climate change, and forecasts are made. The daily actual observations of data from nine meteorological stations located in the area studied along with the agroclimatic reference books and yearbooks were used. Mathematical statistical, extrapolation, analytical, and correlation methods were applied. It has been demonstrated that heat supply conditions in the region are favorable for the growth and development of various crops, although the danger of late spring and early autumn frosts should be taken into account. It has been shown that heat availability is unevenly distributed across the territory studied, and it decreases naturally with increasing altitude, changing from 4486 to 3012°C and lower with the vertical gradient of 175°C/100 m. The interannual course shows an increasing trend in heat availability, which actually increased by 428°C, on average, from 1993 to 2022. This is favorable for cultivation and expansion of sown areas of many new thermophilic and drought-resistant varieties of high-yielding crops.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 1","pages":"103 - 107"},"PeriodicalIF":0.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rodent Fauna of the Forest–Steppe Zone of European Russia 俄国欧洲部分森林草原地带的啮齿动物区系
IF 0.6
Arid Ecosystems Pub Date : 2025-09-02 DOI: 10.1134/S2079096125700155
I. V. Zhigarev, V. Yu. Rumyantsev
{"title":"Rodent Fauna of the Forest–Steppe Zone of European Russia","authors":"I. V. Zhigarev,&nbsp;V. Yu. Rumyantsev","doi":"10.1134/S2079096125700155","DOIUrl":"10.1134/S2079096125700155","url":null,"abstract":"<p>The forest–steppe is an ecotone characterized by a combination of forest and steppe ecosystems. In the European part of Russia, there are three forest–steppe biomes: the Dnieper–Volga (forest–steppe part), Trans-Volga, and Crimean–Caucasian. All of them have now been largely transformed by man. One of the most important components of forest–steppe biocenoses is rodents. This work describes the fauna of rodents in the forest–steppe of the European part of Russia. A general list of rodent species in the area under consideration was compiled. The taxonomic composition, geographic, ecological, and other elements of the rodent fauna were identified, and similarities and differences in the composition of the rodent fauna of forest–steppe biomes were assessed. In total, 44 species of rodents have been reliably recorded (35 in the Dnieper–Volga biome, 27 in the Trans-Volga biome, 26 in the forest–steppe of the North Caucasus, and 20 in the forest–steppe of Crimea). In the zonal forest–steppe, 37 species were noted, and in the barrier (Caucasus and Crimea), 30. Representatives of the Muridae (25%) and Critecidae (36%) families dominate. The predominant species are Eurasian steppe (21%), Euro-Siberian (18%), European forest (14%), and European steppe (14%) species. There were 17 steppe and desert–steppe species (39% of the total number), and 13 forest species (30%).</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 2","pages":"246 - 257"},"PeriodicalIF":0.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Raising of the Upper Boundary of Picea schrenkiana on the Moldo-Too Ridge Due to Climate Changes 气候变化对Moldo-Too山脊上云杉上界的抬升影响
IF 0.6
Arid Ecosystems Pub Date : 2025-09-02 DOI: 10.1134/S2079096125700118
A. Zh. Kendirbaeva, G. T. Kurmanbekova, K. Ch. Chekirov, N. E. Totubaeva, K. T. Solpueva, N. Omurzakova
{"title":"Raising of the Upper Boundary of Picea schrenkiana on the Moldo-Too Ridge Due to Climate Changes","authors":"A. Zh. Kendirbaeva,&nbsp;G. T. Kurmanbekova,&nbsp;K. Ch. Chekirov,&nbsp;N. E. Totubaeva,&nbsp;K. T. Solpueva,&nbsp;N. Omurzakova","doi":"10.1134/S2079096125700118","DOIUrl":"10.1134/S2079096125700118","url":null,"abstract":"<p>Forests of Schrenk spruce (<i>Picea schrenkiana</i> Fisch. et C.A. Mey.) in Kyrgyzstan are widespread in the Inner, Central, and Northern Tien Shan. Small plots of spruce forest are also found in Pamir-Alai. They play a great water regulation, soil protection, sanitary–hygienic, and recreational role. The distribution, location, and change in the aspect of <i>P. schrenkiana</i> in the upper sub-belt of spruce forests of the Inner Tien Shan on the slopes of the Moldo-Too Ridge are analyzed in this work. Most researchers point out that the upper limit of spruce distribution was previously at the altitude of 2900–3100 m above sea level BS. Our monitoring data show that its top boundary is now located at an altitude of 3324 m above sea level. The revealed new limit of <i>P. schrenkiana</i>, in our opinion, is related to climate change.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 2","pages":"209 - 215"},"PeriodicalIF":0.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamics of the Steppe Marmot Populations under Protection Regime in the Southern CIS-Urals 独联体-乌拉尔南部保护制度下草原土拨鼠种群动态
IF 0.6
Arid Ecosystems Pub Date : 2025-09-02 DOI: 10.1134/S2079096124700616
O. V. Soroka
{"title":"Dynamics of the Steppe Marmot Populations under Protection Regime in the Southern CIS-Urals","authors":"O. V. Soroka","doi":"10.1134/S2079096124700616","DOIUrl":"10.1134/S2079096124700616","url":null,"abstract":"<p>This paper presents data on the current state of the population and long-term dynamics of the steppe marmot (<i>Marmota bobak</i> Müller, 1776) population in the Burtinskaya Steppe Site of the Orenburg State Nature Reserve (Orenburg Region, Belyaevsky District). The studies were conducted in the periods 1998–2001 and 2021–2022, and archival data on the steppe marmot census of the reserve were also used. The influence of air temperature and precipitation on the number of marmots, population growth, and brood size was analyzed. Over the entire observation period, three peaks were identified in the dynamics of the steppe marmot population. The first two peaks in numbers in 2000 and 2009 were approximately equal to each other (395–401 individuals); the third, significantly smaller peak (187 individuals) was observed in 2017, and in 2019 the number of marmots reached the minimum for the entire observation period—81 individuals. In 2022, the total number of marmots almost doubled and amounted to 179 individuals. Fluctuations in numbers occurred due to changes in both the number of families and the number of individuals and the composition of families. The maximum number of adult marmots exceeded the minimum by 3.2 times, while the number of yearlings was 28.3 times higher. The population growth was below 40% for half of the observation period, and the average brood size was 2.3 ± 0.16 individuals. A negative correlation was found between the number of marmots and air temperature, and a positive correlation was found between the number of marmots and the amount of precipitation. The combined effect of fires and droughts has a negative impact on the food supply of marmots, which often leads to an almost twofold decrease in numbers the year after the fire.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 1","pages":"89 - 95"},"PeriodicalIF":0.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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