Pub Date : 2024-06-01DOI: 10.1134/s2075111724700012
I. S. Antonova, M. Televinova, V. D. Leiba
{"title":"Invasiveness of Quercus myrsinifolia Blume on the Black Sea Coast of Abkhazia","authors":"I. S. Antonova, M. Televinova, V. D. Leiba","doi":"10.1134/s2075111724700012","DOIUrl":"https://doi.org/10.1134/s2075111724700012","url":null,"abstract":"","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141401828","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 : 2024-06-01DOI: 10.1134/s2075111724700152
A. Magloo, F. Bhat, Syed Talia Mushtaq, S. Darve, H. Ahmad
{"title":"First Record of Exotic Alligator Gar, Atractosteus spatula (Actinopterygii: Lepisosteiformes: Lepisosteidae), from Dal Lake, Kashmir, India","authors":"A. Magloo, F. Bhat, Syed Talia Mushtaq, S. Darve, H. Ahmad","doi":"10.1134/s2075111724700152","DOIUrl":"https://doi.org/10.1134/s2075111724700152","url":null,"abstract":"","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141403765","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 : 2024-06-01DOI: 10.1134/s2075111724700085
Y. Okhremenko, E. S. Gajduchenko
{"title":"Brown Bullhead Ameiurus nebulosus (Siluriformes: Ictaluridae)—A New Species in the Neman River Basin","authors":"Y. Okhremenko, E. S. Gajduchenko","doi":"10.1134/s2075111724700085","DOIUrl":"https://doi.org/10.1134/s2075111724700085","url":null,"abstract":"","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141411242","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 : 2024-04-01DOI: 10.1134/s2075111724010119
A. B. Petrovskiy, D. A. Ksenofontov, E. I. Kozhanova, A. N. Reshetnikov
Abstract
Microclimates of large cities and global warming favor the range expansion of the Far-Eastern invasive fish Perccottus glenii in northern regions of Europe where this invader becomes a component of local ecosystems and participates in transmission of parasites and pollutants along food chains. We have assessed contents of seven trace elements in muscle tissues of this invasive fish in 16 water bodies within the city of Moscow. In all water bodies studied, quantities of all studied elements did not exceed the maximum concentrations permitted in national and international guidelines. Therefore, the screened water bodies of Moscow may be assessed as unpolluted. The fish P. glenii is a convenient object for assessing pollution levels of city ponds, since this fish species is now widespread, reaches a high population densities in shallow aquatic sites, may be caught easily, no permit is required for its capture because the species is recognized as invasive, and its partial elimination does not damage native freshwater ecosystems.
{"title":"Concentrations of Trace Elements (Mn, Zn, Cu, Fe, Ni, Co, and Cd) in Invasive Fish Perccottus glenii in Water Bodies of Moscow","authors":"A. B. Petrovskiy, D. A. Ksenofontov, E. I. Kozhanova, A. N. Reshetnikov","doi":"10.1134/s2075111724010119","DOIUrl":"https://doi.org/10.1134/s2075111724010119","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Microclimates of large cities and global warming favor the range expansion of the Far-Eastern invasive fish <i>Perccottus glenii</i> in northern regions of Europe where this invader becomes a component of local ecosystems and participates in transmission of parasites and pollutants along food chains. We have assessed contents of seven trace elements in muscle tissues of this invasive fish in 16 water bodies within the city of Moscow. In all water bodies studied, quantities of all studied elements did not exceed the maximum concentrations permitted in national and international guidelines. Therefore, the screened water bodies of Moscow may be assessed as unpolluted. The fish <i>P. glenii</i> is a convenient object for assessing pollution levels of city ponds, since this fish species is now widespread, reaches a high population densities in shallow aquatic sites, may be caught easily, no permit is required for its capture because the species is recognized as invasive, and its partial elimination does not damage native freshwater ecosystems.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140563924","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 : 2024-04-01DOI: 10.1134/s2075111724010090
V. I. Maltsev, A. V. Koulish, M. A. Beletskaya
Abstract
A specimen of the marbled spinefoot Siganus rivulatus Forsskål & Niebuhr, 1775, a new fish species for the Black Sea, was caught on November 10, 2020, in the waters of Dvuyakornaya Bay near the city of Feodosiya in the northeastern part of the Black Sea. The 2-year-old fish had a total body length of 124.2 mm and height of 35.7 mm. The morphology of the main elements of the fish’s body and its teeth are described. The path of spreading of this species from its native range (western part of the Indian Ocean) to the Mediterranean and Black seas has been traced. The potential place of this species in the Black Sea ecosystem is discussed.
{"title":"Marbled Spinefoot Siganus rivulatus (Siganidae)—A New Alien Species in the Black Sea","authors":"V. I. Maltsev, A. V. Koulish, M. A. Beletskaya","doi":"10.1134/s2075111724010090","DOIUrl":"https://doi.org/10.1134/s2075111724010090","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A specimen of the marbled spinefoot <i>Siganus rivulatus</i> Forsskål & Niebuhr, 1775, a new fish species for the Black Sea, was caught on November 10, 2020, in the waters of Dvuyakornaya Bay near the city of Feodosiya in the northeastern part of the Black Sea. The 2-year-old fish had a total body length of 124.2 mm and height of 35.7 mm. The morphology of the main elements of the fish’s body and its teeth are described. The path of spreading of this species from its native range (western part of the Indian Ocean) to the Mediterranean and Black seas has been traced. The potential place of this species in the Black Sea ecosystem is discussed.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140563927","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 : 2024-04-01DOI: 10.1134/s207511172401003x
A. N. Afonin, D. L. Musolin
Abstract
Halyomorpha halys is a harmful invasive species of heteropteran insects. We identified the ecological and geographical distribution boundaries of the species by analyzing the occurrences of H. halys in its native range (East Asia) and its invasive range (North America and Europe) and subsequently comparing these occurrences with maps of environmental factors. The limits of its ecological tolerance towards the primary limiting environmental factors affecting its distribution have been refined. The longer history of the invasion of this species in North America, the features of the spatial distribution of environmental factors, and the location of the initial penetration allowed H. halys to occupy its potential ecological niche more fully in North America compared to Europe. A comparative ecogeographical analysis of the current distribution of H. halys in North America has enabled an assessment of the species’ near-term prospects for distribution in Europe. The spread of the invader into Europe under contemporary climatic conditions may occur in an eastern direction—through the territory of Ukraine, the southern regions of Belarus, and the southwestern part of the Russian Federation. The boundaries of this advancement are primarily linked with the ability of H. halys to adapt to harsh overwintering conditions. Within large cities acting as heat islands, the formation of self-sustaining populations of H. halys up to 55° N latitude cannot be ruled out. However, significant territories in Eastern Europe are characterized by pessimal values for H. halys across multiple environmental factors simultaneously. This might contain the further spread of the species in Europe, hinder its naturalization, and reduce the occurrence of H. halys in these regions.
{"title":"The Potential of Distribution of the Brown Marmorated Stink Bug Halyomorpha halys (Heteroptera: Pentatomidae) in Europe Determined on the Basis of the Comparative Analysis of the Ecogeographical Borders of Its Range","authors":"A. N. Afonin, D. L. Musolin","doi":"10.1134/s207511172401003x","DOIUrl":"https://doi.org/10.1134/s207511172401003x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p><i>Halyomorpha halys</i> is a harmful invasive species of heteropteran insects. We identified the ecological and geographical distribution boundaries of the species by analyzing the occurrences of <i>H. halys</i> in its native range (East Asia) and its invasive range (North America and Europe) and subsequently comparing these occurrences with maps of environmental factors. The limits of its ecological tolerance towards the primary limiting environmental factors affecting its distribution have been refined. The longer history of the invasion of this species in North America, the features of the spatial distribution of environmental factors, and the location of the initial penetration allowed <i>H. halys</i> to occupy its potential ecological niche more fully in North America compared to Europe. A comparative ecogeographical analysis of the current distribution of <i>H. halys</i> in North America has enabled an assessment of the species’ near-term prospects for distribution in Europe. The spread of the invader into Europe under contemporary climatic conditions may occur in an eastern direction—through the territory of Ukraine, the southern regions of Belarus, and the southwestern part of the Russian Federation. The boundaries of this advancement are primarily linked with the ability of <i>H. halys</i> to adapt to harsh overwintering conditions. Within large cities acting as heat islands, the formation of self-sustaining populations of <i>H. halys</i> up to 55° N latitude cannot be ruled out. However, significant territories in Eastern Europe are characterized by pessimal values for <i>H. halys</i> across multiple environmental factors simultaneously. This might contain the further spread of the species in Europe, hinder its naturalization, and reduce the occurrence of <i>H. halys</i> in these regions.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140564087","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 : 2024-04-01DOI: 10.1134/s2075111724010053
S. Yu. Gordeev, T. V. Gordeeva, O. V. Korsun
Abstract
In 1990–2020, long-term field observations in the Transbaikal region (Siberia, Russia) revealed a range expansion of the nemoral butterfly species Limenitis sydyi (Lepidoptera, Nymphalidae) further into Siberia (120° E to 110° E). This species had not been registered to the west of the Chita–Kyra longitudinal line (112° E) before the 2000s, but subsequently became rather common in the environs of the city of Chita. Its first occurrence in the Republic of Buryatia (110° E) was recorded in 2012. This species prefers the sparse-growth forests dominated by larch (Larix sp.) and birch (Betula pendula Roth) that commonly occur in the second-order river valleys at elevations of 400–600 m, whereas the broader and narrower river valleys are only marginally suitable for this nemoral species. Additionally, rather high air humidity levels are critical to L. sydyi during particular periods of its life cycle (May–June and September), as well as a snow depth of at least 10–20 cm.
{"title":"On the Reasons for Limenitis sydyi (Lepidoptera, Nymphalidae) Expansion in Transbaikal","authors":"S. Yu. Gordeev, T. V. Gordeeva, O. V. Korsun","doi":"10.1134/s2075111724010053","DOIUrl":"https://doi.org/10.1134/s2075111724010053","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>In 1990–2020, long-term field observations in the Transbaikal region (Siberia, Russia) revealed a range expansion of the nemoral butterfly species <i>Limenitis sydyi</i> (Lepidoptera, Nymphalidae) further into Siberia (120° E to 110° E). This species had not been registered to the west of the Chita–Kyra longitudinal line (112° E) before the 2000s, but subsequently became rather common in the environs of the city of Chita. Its first occurrence in the Republic of Buryatia (110° E) was recorded in 2012. This species prefers the sparse-growth forests dominated by larch (<i>Larix</i> sp.) and birch (<i>Betula pendula</i> Roth) that commonly occur in the second-order river valleys at elevations of 400–600 m, whereas the broader and narrower river valleys are only marginally suitable for this nemoral species. Additionally, rather high air humidity levels are critical to <i>L. sydyi</i> during particular periods of its life cycle (May–June and September), as well as a snow depth of at least 10–20 cm.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140563970","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 : 2024-04-01DOI: 10.1134/s2075111724010077
I. V. Khusainova, G. T. Sitpaeva, I. V. Babay, V. A. Masalova, S. V. Nabieva, A. Abduchadir, N. E. Zverev, V. G. Epiktetov
Abstract
The article presents results of studying the distribution of alien species on the territory of six districts of Zhetysu oblast, located in the Southeastern Kazakhstan. The data obtained will make it possible to summarize up-to-date information about the state of ecosystems with invasive plant species, predict their further spread, and develop a strategy to control them. The objects of research were natural ecosystems of Zhetysu oblast, confined to the Balkhash-Alakol and Zhongar-Alatau floristic districts. To identify alien species, monitoring sites were laid with the calculation of native species, introduced species, the species prone to naturalization, and those with self-seeding. The aggressiveness of naturalized species was assessed according to a modernized scale developed at the Institute of Botany and Phytointroduction, Committee of Forestry and Wildlife, Ministry of Ecology, Geology, and Natural Resources of the Republic of Kazakhstan. The territory under study includes two State National Nature Parks and a State Nature Reserve. Eighty-one alien species of woody plants have been identified within settlements and adjacent territories. Some of them are included in the cultivated flora, which do not show a tendency to naturalization in the region. Seventeen species of alien woody plants have been identified in natural ecosystems, which have the potential for naturalization with a high propensity for seed and vegetative reproduction. The percentage of sites with the presence of invasive species varies from 61 to 91%. The highest aggressiveness score (6–8) was assigned to six species: Acer negundo L., Ulmus pumila L., Quercus robur L., Prunus × domestica, Fraxinus pennsylvanica, Ulmus laevis Pall.. Despite the fact that, in the Alakol and Sarkand districts, most of the territory falls within the dry-steppe and semidesert zones, only 8.6% of sites without types of invasive fraction were noted, owing to widespread dispersion of particularly aggressive “edificators”: A. negundo, U. pumila, etc. All identified species mesophytic by their nature in the secondary range show themselves highly adaptive, plastic, and competitive in xerophytic conditions.
{"title":"Alien Dendroflora of Almaty Oblast and Assessment of Its Invasiveness","authors":"I. V. Khusainova, G. T. Sitpaeva, I. V. Babay, V. A. Masalova, S. V. Nabieva, A. Abduchadir, N. E. Zverev, V. G. Epiktetov","doi":"10.1134/s2075111724010077","DOIUrl":"https://doi.org/10.1134/s2075111724010077","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The article presents results of studying the distribution of alien species on the territory of six districts of Zhetysu oblast, located in the Southeastern Kazakhstan. The data obtained will make it possible to summarize up-to-date information about the state of ecosystems with invasive plant species, predict their further spread, and develop a strategy to control them. The objects of research were natural ecosystems of Zhetysu oblast, confined to the Balkhash-Alakol and Zhongar-Alatau floristic districts. To identify alien species, monitoring sites were laid with the calculation of native species, introduced species, the species prone to naturalization, and those with self-seeding. The aggressiveness of naturalized species was assessed according to a modernized scale developed at the Institute of Botany and Phytointroduction, Committee of Forestry and Wildlife, Ministry of Ecology, Geology, and Natural Resources of the Republic of Kazakhstan. The territory under study includes two State National Nature Parks and a State Nature Reserve. Eighty-one alien species of woody plants have been identified within settlements and adjacent territories. Some of them are included in the cultivated flora, which do not show a tendency to naturalization in the region. Seventeen species of alien woody plants have been identified in natural ecosystems, which have the potential for naturalization with a high propensity for seed and vegetative reproduction. The percentage of sites with the presence of invasive species varies from 61 to 91%. The highest aggressiveness score (6–8) was assigned to six species: <i>Acer negundo</i> L., <i>Ulmus pumila</i> L., <i>Quercus robur</i> L., <i>Prunus</i> × <i>domestica</i>, <i>Fraxinus pennsylvanica</i>, <i>Ulmus laevis</i> Pall<i>.</i>. Despite the fact that, in the Alakol and Sarkand districts, most of the territory falls within the dry-steppe and semidesert zones, only 8.6% of sites without types of invasive fraction were noted, owing to widespread dispersion of particularly aggressive “edificators”: <i>A. negundo</i>, <i>U. pumila</i>, etc. All identified species mesophytic by their nature in the secondary range show themselves highly adaptive, plastic, and competitive in xerophytic conditions.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140563967","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 : 2024-04-01DOI: 10.1134/s2075111724010132
Natalia Sukhikh, Elena Fefilova
Abstract
The euryhaline species Eurytemora velox (Lilljeborg, 1853) is an active invader like some other Eurytemora species. Having Ponto Caspian origin, it has been actively spread in fresh and brackish waters throughout Europe during recent decades. At present, the species is found even in Western Siberia. No one record of this species outside of Europe and Western Siberia was done. This paper presents finding of mitochondrial haplotype E. velox in North American waters by molecular-genetic methods with morphological identification. This specimen has nITS genes of north Atlantic American E. cf. affinis and mixed E. velox–E. cf. affinis 18S rRNA gene. We suppose it is result of interspecies hybridization between European E. velox and North American E. cf. affinis. Possibly E. velox was invaded North America with the ballast water of ships from Western Siberia. What is surprising, hybrid of the same two species was observed in the Ural, whereas E. cf. affinis was never found outside of the North American Atlantic coast.
摘要极性水生物种 Eurytemora velox(Lilljeborg,1853 年)与其他一些极性水生物种一样,是一种活跃的入侵者。它原产于里海蓬岛,近几十年来在欧洲的淡水和咸水中积极扩散。目前,甚至在西西伯利亚也发现了该物种。该物种在欧洲和西西伯利亚以外的地区没有任何记录。本文通过分子遗传学方法和形态鉴定,在北美水域发现了线粒体单倍型 E. velox。该标本具有北大西洋美洲 E. cf. affinis 的 nITS 基因和 E. velox-E. cf. affinis 混合的 18S rRNA 基因。我们认为这是欧洲 E. velox 与北美 E. cf. affinis 种间杂交的结果。可能是 E. velox 随来自西西伯利亚的船舶压舱水入侵北美。令人惊讶的是,在乌拉尔地区发现了这两个物种的杂交种,而在北美大西洋沿岸以外的地区却从未发现过 E. cf. affinis。
{"title":"The First Record of Eurytemora velox (Lilljeborg, 1853) (Crustacea, Calanoida) outside of Europe, Genetic Identification with Surprise","authors":"Natalia Sukhikh, Elena Fefilova","doi":"10.1134/s2075111724010132","DOIUrl":"https://doi.org/10.1134/s2075111724010132","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The euryhaline species <i>Eurytemora velox</i> (Lilljeborg, 1853) is an active invader like some other <i>Eurytemora</i> species. Having Ponto Caspian origin, it has been actively spread in fresh and brackish waters throughout Europe during recent decades. At present, the species is found even in Western Siberia. No one record of this species outside of Europe and Western Siberia was done. This paper presents finding of mitochondrial haplotype <i>E. velox</i> in North American waters by molecular-genetic methods with morphological identification. This specimen has nITS genes of north Atlantic American <i>E.</i> cf. <i>affinis</i> and mixed <i>E. velox</i>–<i>E.</i> cf. <i>affinis</i> 18S rRNA gene<i>.</i> We suppose it is result of interspecies hybridization between European <i>E. velox</i> and North American <i>E.</i> cf. <i>affinis.</i> Possibly <i>E. velox</i> was invaded North America with the ballast water of ships from Western Siberia. What is surprising, hybrid of the same two species was observed in the Ural, whereas <i>E.</i> cf<i>. affinis</i> was never found outside of the North American Atlantic coast.</p>","PeriodicalId":44218,"journal":{"name":"Russian Journal of Biological Invasions","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140563959","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}