Latest Articles from Acta Biologica Sibirica Latest 5 Articles from Acta Biologica Sibirica https://abs.pensoft.net/ Fri, 29 Mar 2024 16:13:23 +0200 Pensoft FeedCreator https://abs.pensoft.net/i/logo.jpg Latest Articles from Acta Biologica Sibirica https://abs.pensoft.net/ Weed Species Composition of Agrophytocenoses in Altai Krai https://abs.pensoft.net/article/60884/ Acta Biologica Sibirica 7: 93-102

DOI: 10.3897/abs.7.e60884

Authors: Tatiana A. Terekhina, Alyona V. Nochevnaya, Natalia V. Ovcharova, Irina A. Lapshina

Abstract: The article reviews the weed species composition of oat, sunflower, wheat, buckwheat, rapeseed and flax agrophytocenoses on 390 fields in 21 districts of Altai Krai: Aleyskiy, Bistroistokskiy, Baevskiy, Burlinskiy, Kamenskiy, Kosikhinskiy, Krutikhinskiy, Kytmanovskiy, Loktevskiy, Mamontovskiy, Novichikhinskiy, Pankrushikhinskiy, Rebrikhinskiy, Rubtsovskiy, Shipunovskiy, Sovetskiy, Tretyakovskiy, Troitskiy, Tyumentsevskiy, Zarinskiy, and Zonalniy. The studied fields were surveyed by the route method, which involved the study of the plot by examining it along two diagonals and four sides, when the area did not exceed 20.0 hectares. Larger fields were divided into plots of 20.0 hectares before the survey. The areas adjacent to roads were examined most carefully, since it is often from the road that the field becomes infested. We used the ArcGis program to compile original maps for the main weed plant species. It was found that out of 45 species encountered, only 10 play a significant role in weed infestation and have a high frequency rate: aboriginal Convolvulus arvensis, Amaranthus retroflexus, Euphorbia virgata, Lathyrus tuberosus, Chenopodium album, as well as such adventive species as Fallopia convolvulus, Setaria pumila, Panicum miliaceum subsp. ruderale, Avena fatua and Echinochloa crusgalli. The largest number of species accounts for the Poaceae family (33.3%). The Brassicaceae family is characterized by a slightly lower percentage of participation in the adventitious flora (27.7%). Other families are not so well represented (by 1-2 species each).

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Research Article Fri, 30 Apr 2021 11:23:00 +0300
Distribution of Acer negundo L. in Altai Krai (Russia, Southern Siberia) and its coenotic role in pine forests https://abs.pensoft.net/article/62111/ Acta Biologica Sibirica 7: 63-76

DOI: 10.3897/abs.7.e62111

Authors: Marina M. Silantyeva, Natalia V. Ovcharova, Tatiana A. Terekhina, Anastasia O. Nesterova, Natalia V. Elesova, Tatyana V. Kornievskaya, Natalia Yu. Speranskaya

Abstract: The article provides data on the distribution of the invasive boxelder maple in the Altai Krai. The article specifically considers its coenotic role in pine forests by the example of the Barnaul ribbon pine forest. A GIS project was developed to assess the distribution of boxelder maple in Altai krai. Mapping was based on the species location data obtained from the herbarium material (more than 500 sheets of the herbarium) deposited to the Altai State University (ALTB), the N.I. Vavilov All-Russian Plant Research Institute (WIR) and the V.L. Komarov Botanical Institute of the Russian Academy of Sciences (LE). To map the boxelder maple distribution, an analysis of the forest stand maps of the Barnaul ribbon pine forest was also carried out (2010, 2018). For each maple location, the stratum, the stratum area, and the stand formula are taken into account. Over the ten-year observation period, the area of maple and mixed forests with the participation of Acer negundo has increased almost 6 times here. Monodominant maple forests and mixed forests with the participation of boxelder maple as well as with other invasive species are formed. This leads to a considerable anthropogenic transformation of pine forests and a decrease in their environment-forming, social-economic and ecological significance. The study reveals that generative plants were not found in every coenopopulation. If the plants reached the reproductive stage, then, on the whole, males prevailed fivefold in the coenopopulation. Most of the studied coenopopulations consisted of pre-generative individuals, with the exception of occasional young generative ones. Most of the trees in the studied populations reached the age of 10–15 years. For forest communities of the Barnaul forestry, two age periods of the ontogenetic state have been established – pre-generative and generative, which indicates a relatively early age of the phytoinvasion and its active stage.

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Research Article Mon, 19 Apr 2021 06:41:40 +0300
Plant communities with naturalized Elaeagnus angustifolia L. as a new vegetation element in Altai Krai (Southwestern Siberia, Russia) https://abs.pensoft.net/article/58204/ Acta Biologica Sibirica 7: 49-61

DOI: 10.3897/abs.7.e58204

Authors: Alena A. Shibanova, Natalya V. Ovcharova

Abstract: Elaeagnus angustifolia L. (Russian olive) is a deciduous small tree or large multi-stemmed shrub that becomes invader in different countries all other the world. It is potentially invasive in some regions of Russia. In the beginning of 20th century, it was introduced to the steppe region of Altai Krai (Russia, southwestern Siberia) to prevent wind erosion. During last 20 years, Russian olive starts to create its own natural stands and to influence on native vegetation. This article presents the results of eco-coenotic survey of natural plant communities dominated by Elaeagnus angustifolia L. first described for Siberia and the analysis of their possible syntaxonomic position. The investigation conducted during summer season 2012 in the steppe region of Altai Krai allows revealing one new for Siberia association Elytrigio repentis–Elaeagnetum angustifoliae and no-ranged community Bromopsis inermis–Elaeagnus angustifolia which were included to the Class Nerio–Tamaricetea, to the Order Tamaricetalia ramosissimae. During the study, the following special features of communities have been described: polydominance of herbal layer, anthropogenic and grazing load, variation of the species richness, plant cover and vertical stratification into layers. These peculiarities mostly prove unestablished character of communities, all of them are relatively young (25–30 years). Russian olive shrubberies varies in moisture and saline regime, which connected with their existence in different landforms (lake alluvial plains, gentle slopes of lakes, low lake terraces).

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Research Article Tue, 13 Apr 2021 06:43:27 +0300
The first data on the nesting biology of the invasive blue nest-renting wasp, Chalybion turanicum (Gussakovskij, 1935) (Hymenoptera, Sphecidae, Sceliphrinae) in the Crimea https://abs.pensoft.net/article/57911/ Acta Biologica Sibirica 6: 571-582

DOI: 10.3897/abs.6.e57911

Authors: Alexander V. Fateryga, Mykola M. Kovblyuk, Roman S. Kvetkov

Abstract: Abstract The nesting biology of Chalybion turanicum (Gussakovskij, 1935) has been studied, with a total of 31 nests being examined. All studied nests were located inside the old nest cells of Sceliphron destillatorium (Illiger, 1807). Each nest of Ch. turanicum consisted of a single cell. Females hunted for spiders, with 18 species in five families being identified among their prey. Two most abundant victim groups were Theridiidae (eight species, 54% of specimens) and Araneidae (seven species, 33% of specimens) spiders. A spider number stored in a cell varied from five to 31 (mean = 17.6 ± 5.4). In the Crimea, Ch. turanicum has one generation per year with reproductive success of 67%. Two species of the nest parasites were reared from cells of Ch. turanicum: Chrysis taczanovskii Radoszkowski, 1876 and Acroricnus seductor (Scopoli, 1786). Chalybion turanicum is the seventh invasive species of Sphecidae naturalized in Europe.

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Research Article Thu, 26 Nov 2020 10:37:48 +0200
Effects of water levels on species diversity of silica-scaled chrysophytes in large tributaries of Lake Baikal https://abs.pensoft.net/article/52840/ Acta Biologica Sibirica 6: 11-32

DOI: 10.3897/abs.6.e52840

Authors: Anna Yu. Bessudova, Larisa M. Sorokovikova, Valery N. Sinyukovich, Alena D. Firsova, Irina V. Tomberg, Yelena V. Likhoshway

Abstract: Large tributaries of Lake Baikal considered as a “hotspot” for silica-scaled chrysophytes diversity. Here we presented the updated species composition of silica-scaled chrysophytes and ecological parameters of their habitat in the Barguzin and Selenga River tributaries and delta in a high water level period. The number of registered taxa was significantly lower compared to the low water conditions (23 versus 66 species) and included the following genera with a given number of species: Chrysosphaerella – 1; Paraphysomonas – 2; Clathromonas – 1; Spiniferomonas – 3; Mallomonas – 9; Synura – 7. Mallomonas guttata and Synura borealis were identified in Russian waters for the first time. Thus, the corrected total list of silica-scaled chrysophytes in the Baikal Region includes 79 taxa. Though, the high water level reduced the total number of silica-scaled chrysophyte taxa, it made the water ecosystem more dynamic by enriching it with the entirely new species for this region.

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Research Article Thu, 16 Apr 2020 11:49:44 +0300