Pub Date : 2024-03-01DOI: 10.1134/s2075111724010107
Abstract
Compared to the data collected in 2016, pronounced changes in the malacofauna inhabiting the Shershnevskoye Reservoir (city of Chelyabinsk) were discovered in August 2022 at inshore sampling stations near the dam. Mollusks of the family Sphaeriidae have disappeared from the community of bivalves. The species Dreissena polymorpha (Pallas, 1771) of the family Dreissenidae predominated the malacofauna in 2022. Analysis of the size and age structure of the D. polymorpha population showed that the maximum age of mollusks was 5 years. The collected data indicate that D. polymorpha has successfully invaded the Shershnevskoye Reservoir in the period since 2016 and naturalized there.
{"title":"Invasion of Dreissena polymorpha (Pallas, 1771) into the Shershnevskoye Reservoir (City of Chelyabinsk)","authors":"","doi":"10.1134/s2075111724010107","DOIUrl":"https://doi.org/10.1134/s2075111724010107","url":null,"abstract":"<span> <h3>Abstract</h3> <p>Compared to the data collected in 2016, pronounced changes in the malacofauna inhabiting the Shershnevskoye Reservoir (city of Chelyabinsk) were discovered in August 2022 at inshore sampling stations near the dam. Mollusks of the family Sphaeriidae have disappeared from the community of bivalves. The species <em>Dreissena polymorpha</em> (Pallas, 1771) of the family Dreissenidae predominated the malacofauna in 2022. Analysis of the size and age structure of the <em>D. polymorpha</em> population showed that the maximum age of mollusks was 5 years. The collected data indicate that <em>D. polymorpha</em> has successfully invaded the Shershnevskoye Reservoir in the period since 2016 and naturalized there.</p> </span>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":"81 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140564305","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}
Pub Date : 2023-12-29DOI: 10.1134/s2075111723040069
I. V. Ermolaev, Z. A. Yefremova, A. A. Abdulkhakova
Abstract
The paper reports the first finding of Macrosaccus robiniella (Clemens, 1859) (Lepidoptera, Gracillariidae) and Obolodiplosis robiniae Haldeman, 1847 (Diptera, Cecidomyiidae) on the territory of the Voronezh State Natural Biosphere Reserve. Some features of the biology of the local M. robiniella population are discussed.
{"title":"The First Finding of Macrosaccus robiniella (Clemens, 1859) and Obolodiplosis robinae Haldeman, 1847 near Voronezh","authors":"I. V. Ermolaev, Z. A. Yefremova, A. A. Abdulkhakova","doi":"10.1134/s2075111723040069","DOIUrl":"https://doi.org/10.1134/s2075111723040069","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The paper reports the first finding of <i>Macrosaccus robiniella</i> (Clemens, 1859) (Lepidoptera, Gracillariidae) and <i>Obolodiplosis robiniae</i> Haldeman, 1847 (Diptera, Cecidomyiidae) on the territory of the Voronezh State Natural Biosphere Reserve. Some features of the biology of the local <i>M. robiniella</i> population are discussed.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139063970","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}
Pub Date : 2023-12-29DOI: 10.1134/s2075111723040203
E. Yu. Zykova
Abstract
Currently, 10–15% of invasive plant species are recorded in alien floras of all inhabited regions of the world, and their proportion is constantly growing. A particular problem is naturalization of alien species in the regions with high levels of endemism and species diversity, such as the Altai Republic. We have been studying the alien flora of the Altai Republic since the beginning of the 21st century. The ranges of 67 invasive species belonging to 57 genera and 20 families have been identified. Most of the species have been known on the territory of the Altai Republic since the 20th century; ten species have penetrated here in the 21st century. The main method of penetration (vector) is accidental introduction. In all areas, at least singly, there are five species: Amaranthus retroflexus, Bunias orientalis, Matricaria discoidea, Melilotus officinalis, Tripleurospermum inodorum. The orographic and climatic features of the area predetermine a greater susceptibility to invasions for the northern regions and a lesser one for the southeastern regions. Eighteen species are distributed only in the northern regions. Almost all species are found Gorno-Altaisk, Maima district; the least number of species are found in Kosh-Agach district, which is characterized by the most severe climatic conditions. Thirty-five species are invasive in Siberia; 11 species are among the hundred most aggressive species in Russia. On the basis of our own long-term research, taking into account the analysis of available publications and stock materials (Herbarium of the Central Siberian Botanical Garden of the Siberian Branch of the Russian Academy of Sciences and Gorno-Altaysk State University), as well as other available data (iNaturalist, GBIF), maps of the ranges of invasive plants of the Altai Republic were compiled. For each species, all known localities are given, indicating administrative regions, settlements, river valleys, etc.; the time of discovery is noted, and links to the source are indicated.
{"title":"Formation of the Ranges of Invasive Plant Species in the Altai Republic: Results of the Centennial Naturalization","authors":"E. Yu. Zykova","doi":"10.1134/s2075111723040203","DOIUrl":"https://doi.org/10.1134/s2075111723040203","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Currently, 10–15% of invasive plant species are recorded in alien floras of all inhabited regions of the world, and their proportion is constantly growing. A particular problem is naturalization of alien species in the regions with high levels of endemism and species diversity, such as the Altai Republic. We have been studying the alien flora of the Altai Republic since the beginning of the 21st century. The ranges of 67 invasive species belonging to 57 genera and 20 families have been identified. Most of the species have been known on the territory of the Altai Republic since the 20th century; ten species have penetrated here in the 21st century. The main method of penetration (vector) is accidental introduction. In all areas, at least singly, there are five species: <i>Amaranthus retroflexus</i>, <i>Bunias orientalis</i>, <i>Matricaria discoidea</i>, <i>Melilotus officinalis</i>, <i>Tripleurospermum inodorum</i>. The orographic and climatic features of the area predetermine a greater susceptibility to invasions for the northern regions and a lesser one for the southeastern regions. Eighteen species are distributed only in the northern regions. Almost all species are found Gorno-Altaisk, Maima district; the least number of species are found in Kosh-Agach district, which is characterized by the most severe climatic conditions. Thirty-five species are invasive in Siberia; 11 species are among the hundred most aggressive species in Russia. On the basis of our own long-term research, taking into account the analysis of available publications and stock materials (Herbarium of the Central Siberian Botanical Garden of the Siberian Branch of the Russian Academy of Sciences and Gorno-Altaysk State University), as well as other available data (iNaturalist, GBIF), maps of the ranges of invasive plants of the Altai Republic were compiled. For each species, all known localities are given, indicating administrative regions, settlements, river valleys, etc.; the time of discovery is noted, and links to the source are indicated.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":"11 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139064028","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}
Pub Date : 2023-12-29DOI: 10.1134/s2075111723040070
N. K. Khristoforova, A. V. Litvinenko, M. Yu. Alekseev, V. Yu. Tsygankov
Abstract
The concentrations of Pb, Cd, Ni, Cu, and Zn were determined in the invasive pink salmon that came to spawn into the Kola and Tuloma rivers of the Kola Peninsula, flowing into the Barents Sea, in July 2019. The content of trace elements in the organs and tissues of pink salmon introduced in the Euro-Arctic waters of Russia was compared to those of the pink salmon from its native range, which returned to spawn in the rivers of the Sakhalin and Iturup islands in 2016–2018. It has been established that concentrations of Zn, Cu, and Ni noticeably predominate in all organs and tissues of introduced pink salmon, whereas Pb and Cd predominate in the Sea of Okhotsk pink salmon. Obviously, the differences in the microelement composition in fish are caused by environmental conditions. In the Barents Sea, they are formed under the influence of the Gulf Stream, as well as the anthropogenic impact of the Kola Peninsula, which is characterized by the extraction, processing, and smelting of a number of metals, primarily Ni and Cu, as well as Zn. In the Sakhalin-Kuril basin, the specificity of the environment and the microelement composition of salmon are due to the influence of natural factors—volcanism and upwellings. Schools of pink salmon during feeding and migration in the Pacific Ocean cross a high-nutrient and at the same time geochemically impact natural zone formed by the Kuril Ridge and the Kuril-Kamchatka Depression, which supplies chemical elements to surface waters. Here, the concentration of Pb is most markedly increased in fish. The development of the introduced pink salmon in the new area is facilitated by the recent increase in temperature in the waters of the North Atlantic, so the amount of fish production in it will increase. The mastering of pink salmon in new feeding places sets before scientists the task of monitoring the dynamics of its abundance and taking adequate measures for fishery regulation and fish quality control.
{"title":"Trace Element Сontent in the Pink Salmon from the Rivers of the Basins of the Barents Sea and Sea of Okhotsk","authors":"N. K. Khristoforova, A. V. Litvinenko, M. Yu. Alekseev, V. Yu. Tsygankov","doi":"10.1134/s2075111723040070","DOIUrl":"https://doi.org/10.1134/s2075111723040070","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The concentrations of Pb, Cd, Ni, Cu, and Zn were determined in the invasive pink salmon that came to spawn into the Kola and Tuloma rivers of the Kola Peninsula, flowing into the Barents Sea, in July 2019. The content of trace elements in the organs and tissues of pink salmon introduced in the Euro-Arctic waters of Russia was compared to those of the pink salmon from its native range, which returned to spawn in the rivers of the Sakhalin and Iturup islands in 2016–2018. It has been established that concentrations of Zn, Cu, and Ni noticeably predominate in all organs and tissues of introduced pink salmon, whereas Pb and Cd predominate in the Sea of Okhotsk pink salmon. Obviously, the differences in the microelement composition in fish are caused by environmental conditions. In the Barents Sea, they are formed under the influence of the Gulf Stream, as well as the anthropogenic impact of the Kola Peninsula, which is characterized by the extraction, processing, and smelting of a number of metals, primarily Ni and Cu, as well as Zn. In the Sakhalin-Kuril basin, the specificity of the environment and the microelement composition of salmon are due to the influence of natural factors—volcanism and upwellings. Schools of pink salmon during feeding and migration in the Pacific Ocean cross a high-nutrient and at the same time geochemically impact natural zone formed by the Kuril Ridge and the Kuril-Kamchatka Depression, which supplies chemical elements to surface waters. Here, the concentration of Pb is most markedly increased in fish. The development of the introduced pink salmon in the new area is facilitated by the recent increase in temperature in the waters of the North Atlantic, so the amount of fish production in it will increase. The mastering of pink salmon in new feeding places sets before scientists the task of monitoring the dynamics of its abundance and taking adequate measures for fishery regulation and fish quality control.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":"9 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139063962","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}
Pub Date : 2023-12-29DOI: 10.1134/s2075111723040161
N. Sukhikh, V. Alekseev
Abstract
Among invasive species there is a special group so named cryptic species for which morphological identification is very difficult. This review is devoted to analysis of the dispersal routes of two copepod cryptic species complexes into aquatic ecosystems. Eurytemora carolleeae introduction was revealed in 2007 with bar-code. The species was described as a new taxon; its distribution was also studied using morphology. Biological invasions of two other Copepod species Acanthocyclops americanus and Eurytemora caspica were mainly studied using morphological methods since the species have already been described. At the same time, to confirm their distinctions from local forms molecular genetic tools were also used. Two scenarios resulting from cryptic species’ invasions and their competitions with native species were the partly (E. carrolleeae) or full displacement (A. americanus). When assessing the possible negative impact of invasive species on competitors, the most attention should be paid to predator species. Identification of cryptic species significantly complicates the situation with the assessment of bioinvasion and needs the use of molecular methods.
{"title":"Two Life Strategies in Copepod Cryptic Species: Coexistence and Displacement","authors":"N. Sukhikh, V. Alekseev","doi":"10.1134/s2075111723040161","DOIUrl":"https://doi.org/10.1134/s2075111723040161","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Among invasive species there is a special group so named cryptic species for which morphological identification is very difficult. This review is devoted to analysis of the dispersal routes of two copepod cryptic species complexes into aquatic ecosystems. <i>Eurytemora carolleeae</i> introduction was revealed in 2007 with bar-code. The species was described as a new taxon; its distribution was also studied using morphology. Biological invasions of two other Copepod species <i>Acanthocyclops americanus</i> and <i>Eurytemora caspica</i> were mainly studied using morphological methods since the species have already been described. At the same time, to confirm their distinctions from local forms molecular genetic tools were also used. Two scenarios resulting from cryptic species’ invasions and their competitions with native species were the partly (<i>E. carrolleeae</i>) or full displacement (<i>A. americanus</i>). When assessing the possible negative impact of invasive species on competitors, the most attention should be paid to predator species. Identification of cryptic species significantly complicates the situation with the assessment of bioinvasion and needs the use of molecular methods.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":"19 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139063967","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}
Pub Date : 2023-12-29DOI: 10.1134/s2075111723040033
S. N. Barinov, M. O. Barinova
Abstract
The paper presents the fact of occurrence of the sea buckthorn fly Rhagoletis batava obscuriosa Kol. on the territory of Ivanovo Region (Russia), which has been recorded since 2018 in wild populations and since 2022 in garden plantings of the sea buckthorn Hippophae rhamnoides (L., 1753). This species poses a threat to the effective cultivation of the sea buckthorn in the region.
{"title":"Finding of the Buckthorn Fly Rhagoletis batava obscuriosa Kol. on the Territory of Ivanovo Region (Russia)","authors":"S. N. Barinov, M. O. Barinova","doi":"10.1134/s2075111723040033","DOIUrl":"https://doi.org/10.1134/s2075111723040033","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The paper presents the fact of occurrence of the sea buckthorn fly <i>Rhagoletis batava obscuriosa</i> Kol. on the territory of Ivanovo Region (Russia), which has been recorded since 2018 in wild populations and since 2022 in garden plantings of the sea buckthorn <i>Hippophae rhamnoides</i> (L., 1753). This species poses a threat to the effective cultivation of the sea buckthorn in the region.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":"67 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139063977","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}
Pub Date : 2023-12-29DOI: 10.1134/s207511172304015x
V. V. Stepanova, N. V. Mamaev, M. M. Sidorov, I. M. Okhlopkov
Abstract
The article presents data on the morphology, range, and number of the American mink in Yakutia, gives materials on its morpho- and craniometry. Data on the dynamics of the range and number of the American mink in Yakutia from the moment of its introduction in the early 1960s to the present time are shown. The range of the mink has expanded in the northeast direction from Southern Yakutia to Central Yakutia for half a century, and new mink settlement sites on the eastern side of Yakutia from Magadan Region have been noted. After naturalization of the American mink for 25 years, there was a gradual increase in its number from 686 individuals to 4000–5000 individuals. Over the next 35 years, the number of the species stabilized and has remained at this level with some fluctuations over the years, excluding 2005–2006, when there was a sharp increase in the number of mink.
{"title":"American Mink (Neovison vison) in Yakutia: Morphology, Distribution, Abundance","authors":"V. V. Stepanova, N. V. Mamaev, M. M. Sidorov, I. M. Okhlopkov","doi":"10.1134/s207511172304015x","DOIUrl":"https://doi.org/10.1134/s207511172304015x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The article presents data on the morphology, range, and number of the American mink in Yakutia, gives materials on its morpho- and craniometry. Data on the dynamics of the range and number of the American mink in Yakutia from the moment of its introduction in the early 1960s to the present time are shown. The range of the mink has expanded in the northeast direction from Southern Yakutia to Central Yakutia for half a century, and new mink settlement sites on the eastern side of Yakutia from Magadan Region have been noted. After naturalization of the American mink for 25 years, there was a gradual increase in its number from 686 individuals to 4000–5000 individuals. Over the next 35 years, the number of the species stabilized and has remained at this level with some fluctuations over the years, excluding 2005–2006, when there was a sharp increase in the number of mink.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":"24 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139063780","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}
Pub Date : 2023-12-29DOI: 10.1134/s2075111723040082
K. G. Klimovich
Abstract
The paper presents all the known data obtained as a result of field studies of the Transcaucasian tree mantis (Hierodula transcaucasica Brunner von Wattenwyl, 1878) on the territory of Rostov Region, including behavior and life cycle, namely, the growth and development of individuals at different stages of ontogenesis. New sampling sites in the region are indicated, and issues of the species penetration into this territory in the period of 2017–2021 are considered.
摘要 本文介绍了在罗斯托夫州对外高加索树螳螂（Hierodula transcaucasica Brunner von Wattenwyl，1878 年）进行实地研究后获得的所有已知数据，包括行为和生命周期，即个体在本体发育不同阶段的生长和发育情况。报告指出了该地区的新取样点，并考虑了 2017-2021 年期间该物种进入该地区的问题。
{"title":"Information on the Naturalization and Biology of the Transcaucasian Tree Mantis (Hierodula transcaucasica Brunner von Wattenwyl, 1878) (Mantodea: Mantidae) in Rostov Region","authors":"K. G. Klimovich","doi":"10.1134/s2075111723040082","DOIUrl":"https://doi.org/10.1134/s2075111723040082","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The paper presents all the known data obtained as a result of field studies of the Transcaucasian tree mantis (<i>Hierodula transcaucasica</i> Brunner von Wattenwyl, 1878) on the territory of Rostov Region, including behavior and life cycle, namely, the growth and development of individuals at different stages of ontogenesis. New sampling sites in the region are indicated, and issues of the species penetration into this territory in the period of 2017–2021 are considered.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":"79 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139063965","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}
Pub Date : 2023-12-29DOI: 10.1134/s2075111723040148
D. G. Smirnov, A. V. Zabashta
Abstract
The materials on the distribution of Nyctalus noctula in Rostov Region are given. On the basis of this, the northern border of its winter habitat and the seasonal characteristics of the stay are specified. The presented findings of this species in the south and extreme east of the region, which were made in the summer and in the off season showed that this territory was used both during the migrRegionation period and as summer habitats. In the scientific literature, the expansion of the winter range of this species over the past decades has been noted. Findings of wintering animals in high-rise buildings of cities are considered as confirming facts of expansion. However, the issue regarding the expansion of wintering boundaries remains ambiguous because all these detections are made in the climatic “risk zone.” The results of modeling of the probabilistic area of winter habitats of N. noctula in conditions of natural shelters (hollows of trees) showed that, over the past 70 years, there have been no changes in the boundaries and its northern limits do not correspond to those that were previously indicated. In the east of the European range of this species, the northern boundary of the natural wintering area passes through Rostov Region and ends to the east at the latitude of the city of Astrakhan. The most important bioclimatic factors that determine wintering within such a territory are the average temperature of the driest and the average temperature of the coldest quarters of the year and the minimum temperature of the coldest month. In the regions to the north of this area owing to the severity of winters, the overwintering of animals in natural shelters is unlikely. On the basis of the results obtained, the total wintering area of N. noctula is divided into two zones. The first zone is the territory where wintering is massive and possible in poorly protected natural shelters; the second zone is a territory with a climatic “risk zone,” where only a very small part of population of the species remains, and the spaces protected from external factors in multistory buildings of settlements serve as shelters. Findings of wintering colonies of noctules in the second zone that are located far outside the natural wintering area can obviously be considered as an invasive process, which in migratory bats has an adaptive character and is associated with the development of urbanized landscapes.
{"title":"Distribution of the Noctule Bat (Nyctalus noctula) in Rostov Region and the Problem of Expansion of the Northern Boundary of Its Wintering Area","authors":"D. G. Smirnov, A. V. Zabashta","doi":"10.1134/s2075111723040148","DOIUrl":"https://doi.org/10.1134/s2075111723040148","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The materials on the distribution of <i>Nyctalus noctula</i> in Rostov Region are given. On the basis of this, the northern border of its winter habitat and the seasonal characteristics of the stay are specified. The presented findings of this species in the south and extreme east of the region, which were made in the summer and in the off season showed that this territory was used both during the migrRegionation period and as summer habitats. In the scientific literature, the expansion of the winter range of this species over the past decades has been noted. Findings of wintering animals in high-rise buildings of cities are considered as confirming facts of expansion. However, the issue regarding the expansion of wintering boundaries remains ambiguous because all these detections are made in the climatic “risk zone.” The results of modeling of the probabilistic area of winter habitats of <i>N. noctula</i> in conditions of natural shelters (hollows of trees) showed that, over the past 70 years, there have been no changes in the boundaries and its northern limits do not correspond to those that were previously indicated. In the east of the European range of this species, the northern boundary of the natural wintering area passes through Rostov Region and ends to the east at the latitude of the city of Astrakhan. The most important bioclimatic factors that determine wintering within such a territory are the average temperature of the driest and the average temperature of the coldest quarters of the year and the minimum temperature of the coldest month. In the regions to the north of this area owing to the severity of winters, the overwintering of animals in natural shelters is unlikely. On the basis of the results obtained, the total wintering area of <i>N. noctula</i> is divided into two zones. The first zone is the territory where wintering is massive and possible in poorly protected natural shelters; the second zone is a territory with a climatic “risk zone,” where only a very small part of population of the species remains, and the spaces protected from external factors in multistory buildings of settlements serve as shelters. Findings of wintering colonies of noctules in the second zone that are located far outside the natural wintering area can obviously be considered as an invasive process, which in migratory bats has an adaptive character and is associated with the development of urbanized landscapes.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139063973","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}
Pub Date : 2023-12-29DOI: 10.1134/s2075111723040057
J. D. Dikareva, V. I. Ryabushko
Abstract
For the first time, the dimensional and weight characteristics of the bivalve mollusk Anadara kagoshimensis (Tokunaga, 1906), an alien species in the Sea of Azov, were examined. The relationships between allometric parameters of the mollusk (dimensions and weight) were approximated by power functions. The maximum coefficient of determination was noted for the power-law correlation between shell width and total weight of Anadara; the minimum one was noted for the correlation between its shell height and total weight. Also, the maximum coefficient of determination was noted for the power-law correlation between shell length and wet weight of Anadara soft tissues; the minimum one was noted for the correlation between its shell width and wet weight of soft tissues. The ratio between dry and wet weight of soft tissues was 0.16. A comparison of different Anadara habitats in the Black Sea, Sea of Azov, and Aegean Sea showed that cage farming of these mollusks in moderately saline waters ensures the most favorable conditions for their maximum growth.
{"title":"Dimensional and Weight Characteristics of the Bivalve Mollusk Anadara kagoshimensis (Tokunaga, 1906), an Alien Species in the Sea of Azov","authors":"J. D. Dikareva, V. I. Ryabushko","doi":"10.1134/s2075111723040057","DOIUrl":"https://doi.org/10.1134/s2075111723040057","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>For the first time, the dimensional and weight characteristics of the bivalve mollusk <i>Anadara kagoshimensis</i> (Tokunaga, 1906), an alien species in the Sea of Azov, were examined. The relationships between allometric parameters of the mollusk (dimensions and weight) were approximated by power functions. The maximum coefficient of determination was noted for the power-law correlation between shell width and total weight of <i>Anadara</i>; the minimum one was noted for the correlation between its shell height and total weight. Also, the maximum coefficient of determination was noted for the power-law correlation between shell length and wet weight of <i>Anadara</i> soft tissues; the minimum one was noted for the correlation between its shell width and wet weight of soft tissues. The ratio between dry and wet weight of soft tissues was 0.16. A comparison of different <i>Anadara</i> habitats in the Black Sea, Sea of Azov, and Aegean Sea showed that cage farming of these mollusks in moderately saline waters ensures the most favorable conditions for their maximum growth.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":"37 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139063975","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}
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